Dowa Mining Co., Ltd.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Dowa Mining Co., Ltd..The latest application filed is for "silver powder and method for producing same".

Company Profile

0.144.91

Dowa Mining Co., Ltd. - Tokyo JP
Dowa Mining Co., Ltd. - JP JP
Dowa Mining Co., Ltd. - Chiyoda-Ku JP
DOWA MINING CO.,LTD - Tokyo JP
DOWA MINING CO., LTD. - 8-2, Marunouchi 1-chome, Chiyoda-ku Tokyo JP
Dowa Mining Co., Ltd. -
Dowa Mining Co., LTD - JP JP
DOWA MINING CO., LTD. - 8-1, Marunouchi 1-chome Chiyoda-ku Tokyo JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Silver powder and method for producing same Grant 8,992,701 - Fujino , et al. March 31, 2	2015-03-31
Silver powder and method for producing same Grant 8,282,702 - Fujino , et al. October 9, 2	2012-10-09
Silver Powder And Method For Producing Same App 20120219453 - Fujino; Takatoshi ; et al.	2012-08-30
Indium oxide powder and method for producing same Grant 7,820,138 - Watanabe , et al. October 26, 2	2010-10-26
Heat treatment method and heat treatment apparatus Grant 7,722,728 - Tsuge , et al. May 25, 2	2010-05-25
Tin-plated product Grant 7,651,785 - Takei , et al. January 26, 2	2010-01-26
Silver powder and method for producing same Grant 7,641,817 - Matsushima , et al. January 5, 2	2010-01-05
Battery positive electrode material Grant 7,585,588 - Tanoue September 8, 2	2009-09-08
Carburization treatment method Grant 7,575,643 - Ebihara , et al. August 18, 2	2009-08-18
Composite plated product and method for producing same Grant 7,514,022 - Miyazawa , et al. April 7, 2	2009-04-07
Sintered rare earth magnetic alloy wafer surface grinding machine Grant 7,481,698 - Yamada , et al. January 27, 2	2009-01-27
Silver powder Grant 7,462,301 - Matsushima , et al. December 9, 2	2008-12-09
Method of forming group-III nitride crystal, layered structure and epitaxial substrate Grant 7,445,672 - Shibata November 4, 2	2008-11-04
Power module member manufactured by wet treatment, and wet treatment method and wet treatment equipment thereof App 20080230515 - Iyoda; Ken ; et al.	2008-09-25
Aluminum/ceramic bonding substrate and method for producing same Grant 7,393,596 - Osanai , et al. July 1, 2	2008-07-01
Oxide superconductor current lead and method of manufacturing the same, and superconducting system Grant 7,394,024 - Kohayashi , et al. July 1, 2	2008-07-01
Method for producing a composite plated product Grant 7,393,473 - Miyazawa , et al. July 1, 2	2008-07-01
Power module member manufactured by wet treatment, and wet treatment method and wet treatment equipment thereof Grant 7,387,741 - Iyoda , et al. June 17, 2	2008-06-17
Circuit board and a power module employing the same Grant 7,368,665 - Hara , et al. May 6, 2	2008-05-06
Copper base alloy and method for producing same Grant 7,351,372 - Inohana , et al. April 1, 2	2008-04-01
Metal-ceramic circuit board Grant 7,348,493 - Osanai , et al. March 25, 2	2008-03-25
Phosphor mixture and light emitting device using the same Grant 7,345,418 - Nagatomi , et al. March 18, 2	2008-03-18
Method for producing metal/ceramic bonding circuit board Grant 7,340,828 - Osanai , et al. March 11, 2	2008-03-11
Iron nitride magnetic powder and method of producing the powder Grant 7,332,220 - Masada , et al. February 19, 2	2008-02-19
Iron nitride system magnetic powder having good storage stability Grant 7,314,666 - Masada , et al. January 1, 2	2008-01-01
Aluminum/ceramic bonding substrate Grant 7,304,378 - Osanai December 4, 2	2007-12-04
Insulating substrate boards for semiconductor and power modules Grant 7,276,292 - Furo , et al. October 2, 2	2007-10-02
Phosphor and production method of the same, method of shifting emission wavelength of phosphor, and light source and LED Grant 7,273,568 - Nagatomi , et al. September 25, 2	2007-09-25
Sintered rare earth magnetic alloy wafer and wafer surface growing machine Grant 7,273,405 - Yamada , et al. September 25, 2	2007-09-25
Bond magnet and ferrite magnetic powder for bond magnet Grant 7,255,807 - Senda , et al. August 14, 2	2007-08-14
Notched compound semiconductor wafer Grant 7,256,476 - Toba , et al. August 14, 2	2007-08-14
Metal/ceramic bonding substrate and method for producing same Grant 7,256,353 - Osanai , et al. August 14, 2	2007-08-14
Aluminum/ceramic bonding substrate and method for producing same Grant 7,255,931 - Osanai , et al. August 14, 2	2007-08-14
Notched compound semiconductor wafer Grant 7,256,478 - Toba , et al. August 14, 2	2007-08-14
Notched compound semiconductor wafer Grant 7,256,477 - Toba , et al. August 14, 2	2007-08-14
Silver Powder And Method For Producing Same App 20070181858 - Matsushima; Hiroshi ; et al.	2007-08-09
Phosphor, light source and LED Grant 7,252,788 - Nagatomi , et al. August 7, 2	2007-08-07
Iron nitride magnetic powder and method of producing the powder Grant 7,241,501 - Masada , et al. July 10, 2	2007-07-10
Metal member coated with metal layers Grant 7,238,432 - Haketa July 3, 2	2007-07-03
Powder for underlayer of coating-type magnetic recording medium Grant 7,238,438 - Matsumoto , et al. July 3, 2	2007-07-03
Metal powder for decomposition of organic halogen and method for manufacturing the same Grant 7,235,181 - Tomoguchi , et al. June 26, 2	2007-06-26
Copper particle clusters and powder containing the same suitable as conductive filler of conductive paste Grant 7,235,119 - Sano , et al. June 26, 2	2007-06-26
Oxide Superconductor Thick Film and Method for Manufacturing the Same App 20070142232 - Kojima; Masahiro ; et al.	2007-06-21
Fine-grain silver oxide powder Grant 7,226,573 - Harigae , et al. June 5, 2	2007-06-05
Method for producing metal/ceramic bonding substrate Grant 7,219,826 - Nakamura May 22, 2	2007-05-22
Metal/ceramic bonding substrate and method for producing same Grant 7,189,449 - Osanai , et al. March 13, 2	2007-03-13
Substrate For Film Growth Of Group Iii Nitrides, Method Of Manufacturing The Same, And Semiconductor Device Using The Same App 20070045662 - SUMIYA; Shigeaki ; et al.	2007-03-01
Radiation plate and power semiconductor module IC package Grant 7,180,176 - Endou , et al. February 20, 2	2007-02-20
Phosphor and phosphor film for electron beam excitation and color display apparatus using the same App 20070029525 - Gotoh; Masahiro ; et al.	2007-02-08
Apparatus, mold, and method for manufacturing metal-ceramic composite member App 20070017652 - Osanai; Hideyo ; et al.	2007-01-25
Method of making ferromagnetic iron alloy powder for magnetic recording medium Grant 7,166,172 - Matsumoto , et al. January 23, 2	2007-01-23
Composite plated product and method for producing same App 20070007497 - Miyazawa; Hiroshi ; et al.	2007-01-11
Electronic part mounting substrate and method for producing same Grant 7,159,310 - Osanai January 9, 2	2007-01-09
Metal/ceramic bonding article and method for producing same Grant 7,159,757 - Takahashi , et al. January 9, 2	2007-01-09
Fine zirconium oxide powder and method for producing same Grant 7,157,074 - Asai January 2, 2	2007-01-02
Phosphor for electron beam excitation and color display device using the same Grant 7,138,756 - Gotoh , et al. November 21, 2	2006-11-21
Apparatus, mold, and method for manufacturing metal-ceramic composite member Grant 7,131,483 - Osanai , et al. November 7, 2	2006-11-07
Method of manufacturing a metal-ceramic circuit board App 20060242826 - Osanai; Hideyo ; et al.	2006-11-02
Phosphor and manufacturing method for the same, and light emitting device using the phosphor App 20060244356 - Nagatomi; Akira ; et al.	2006-11-02
Metal/ceramic circuit board and method for producing same Grant 7,128,844 - Tsukaguchi , et al. October 31, 2	2006-10-31
Metal/ceramic bonding substrate and method for producing same Grant 7,122,243 - Osanai , et al. October 17, 2	2006-10-17
Phosphor and manufacturing method of the same, and light emitting device using the phosphor App 20060220047 - Nagatomi; Akira ; et al.	2006-10-05
Phosphor and manufacturing method of the same, and light emitting device using the phosphor App 20060220520 - Sakane; Kenji ; et al.	2006-10-05
Heat treatment method and heat treatment apparatus App 20060223015 - Tsuge; Takanori ; et al.	2006-10-05
Tin-plated product and method for producing same App 20060216475 - Miyazawa; Hiroshi ; et al.	2006-09-28
Indium oxide powder and method for producing same App 20060216224 - Watanabe; Makoto ; et al.	2006-09-28
Phosphor mixture and light emitting device App 20060197432 - Nagatomi; Akira ; et al.	2006-09-07
Phosphor and manufacturing method of the same, and light emitting device using the phosphor App 20060197439 - Sakane; Kenji ; et al.	2006-09-07
Hydrogen storage metal alloy, method for absorption and release of hydrogen using the said alloy and hydrogen fuel battery using the said method Grant 7,094,493 - Okada , et al. August 22, 2	2006-08-22
Heat treatment furnace Grant 7,090,488 - Murakami , et al. August 15, 2	2006-08-15
Magnetic powder for magnetic recording Grant 7,074,281 - Matsumoto , et al. July 11, 2	2006-07-11
Aluminum/ceramic bonding substrate and method for producing same Grant 7,073,703 - Takahashi , et al. July 11, 2	2006-07-11
Plating device and plating method App 20060137987 - Miyazawa; Hiroshi ; et al.	2006-06-29
Notched compound semiconductor wafer App 20060113558 - Toba; Ryuichi ; et al.	2006-06-01
Notched compound semiconductor wafer App 20060113559 - Toba; Ryuichi ; et al.	2006-06-01
Silver powder and method for producing same App 20060107791 - Fujino; Takatoshi ; et al.	2006-05-25
Metal/ceramic bonding article and method for producing same Grant 7,048,866 - Nakamura , et al. May 23, 2	2006-05-23
Phosphor mixture and light emitting device App 20060091790 - Nagatomi; Akira ; et al.	2006-05-04
Metal coated substrate and manufacturing method of the same App 20060093838 - Kohayashi; Shuichi ; et al.	2006-05-04
Oxide superconductor thick film and method for manufacturing the same App 20060078670 - Kojima; Masahiro ; et al.	2006-04-13
Vacuum heat treatment furnace and method of and apparatus for measuring carbon concentration in atmosphere having reduced pressure. Grant 7,024,916 - Juryozawa , et al. April 11, 2	2006-04-11
Tin-plated product App 20060068220 - Takei; Hirofumi ; et al.	2006-03-30
Phosphor and manufacturing method for the same, and light source App 20060065878 - Sakane; Kenji ; et al.	2006-03-30
Notched compound semiconductor wafer App 20060060883 - Toba; Ryuichi ; et al.	2006-03-23
Circuit board and a power module employing the same App 20060062979 - Hara; Masahiro ; et al.	2006-03-23
Inspection method and inspection system of surface of article Grant 7,012,679 - Ujihara , et al. March 14, 2	2006-03-14
Circuit board, process for producing the same and a power module employing the same Grant 7,008,549 - Hara , et al. March 7, 2	2006-03-07
Phosphor mixture and light emitting device using the same App 20060045832 - Nagatomi; Akira ; et al.	2006-03-02
Phosphor and manufacturing method therefore, and light source using the phosphor App 20060043337 - Sakane; Kenji ; et al.	2006-03-02
Aluminum/ceramic bonding substrate App 20060043574 - Osanai; Hideyo	2006-03-02
Phosphor and manufacturing method for the same, and light source App 20060033083 - Sakane; Kenji ; et al.	2006-02-16
Mold and method for manufacturing metal-ceramic composite member Grant 6,997,233 - Osanai , et al. February 14, 2	2006-02-14
Notched compound semiconductor wafer Grant 6,998,700 - Toba , et al. February 14, 2	2006-02-14
Method of producing sintered rare earth magnetic alloy wafer Grant 6,994,756 - Yamada , et al. February 7, 2	2006-02-07
Phosphor for electron beam excitation and color display device using the same App 20060022573 - Gotoh; Masahiro ; et al.	2006-02-02
Composite conductor, superconductive apparatus system, and composite conductor manufacturing method App 20060021788 - Kohayashi; Shuichi ; et al.	2006-02-02
Phosphor and production method of the same, method of shifting emission wavelength of phosphor, and light source and LED App 20060017365 - Nagatomi; Akira ; et al.	2006-01-26
Semiconductor light-emitting element and manufacturing method thereof App 20060011934 - Sunachi; Naoya ; et al.	2006-01-19
Phosphor, LED and light source App 20060006782 - Nagatomi; Akira ; et al.	2006-01-12
Zinc alloy powder for alkaline cell and method for producing same App 20060008704 - Ebara; Atsushi ; et al.	2006-01-12
Spherical silver power and method for producing same App 20050279970 - Ogi, Kozo ; et al.	2005-12-22
Manufacturing method of metal paste App 20050267243 - Amasaki, Kazuyoshi ; et al.	2005-12-01
Spherical silver powder and method for producing same App 20050257643 - Ogi, Kozo ; et al.	2005-11-24
Phosphor and production method of the same and light source and LED using the phosphor App 20050253500 - Gotoh, Masahiro ; et al.	2005-11-17
Aluminum bonding member and method for producing same App 20050217823 - Osanai, Hideyo	2005-10-06
Connector copper alloys and a process for producing the same Grant 6,949,150 - Sugawara , et al. September 27, 2	2005-09-27
Copper-based alloy excellent in dezincing resistance Grant 6,942,742 - Yamagishi September 13, 2	2005-09-13
Metal member and electric contact using same App 20050196634 - Abe, Naoki ; et al.	2005-09-08
Method of manufacturing a metal-ceramic circuit board Grant 6,938,333 - Osanai , et al. September 6, 2	2005-09-06
Phosphor, light source and LED App 20050189863 - Nagatomi, Akira ; et al.	2005-09-01
Silver powder and method for producing same App 20050188788 - Ogi, Kozo ; et al.	2005-09-01
Metal/ceramic bonding article and method for producing same Grant 6,935,554 - Kimura , et al. August 30, 2	2005-08-30
Metal/ceramic circuit board Grant 6,936,337 - Tsukaguchi , et al. August 30, 2	2005-08-30
Method and apparatus for enhanced purification of high-purity metals Grant 6,932,852 - Tayama , et al. August 23, 2	2005-08-23
Metal/ceramic bonding member and method for producing same App 20050175773 - Tsukaguchi, Nobuyoshi ; et al.	2005-08-11
Positive electrode active material for alkaline cell Grant 6,926,999 - Tanoue , et al. August 9, 2	2005-08-09
Silver powder and method for producing same App 20050167640 - Matsushima, Hiroshi ; et al.	2005-08-04
Oxide superconductor thick film and method for manufacturing the same App 20050170969 - Kojima, Masahiro ; et al.	2005-08-04
Copper particle clusters and powder containing the same suitable as conductive filler of conductive paste Grant 6,923,924 - Sano , et al. August 2, 2	2005-08-02
Copper particle clusters and powder containing the same suitable as conductive filler of conductive paste App 20050161643 - Sano, Kazushi ; et al.	2005-07-28
Method for producing metal/ceramic bonding circuit board Grant 6,918,529 - Tsukaguchi , et al. July 19, 2	2005-07-19
Method of manufacturing a metal-ceramic circuit board App 20050138799 - Osanai, Hideyo ; et al.	2005-06-30
Combined member of aluminum-ceramics Grant 6,912,130 - Osanai , et al. June 28, 2	2005-06-28
Tin-containing indium oxides, a process for producing them, a coating solution using them and electrically conductive coatings formed of them Grant 6,908,574 - Inamura , et al. June 21, 2	2005-06-21
Metal/ceramic bonding substrate and method for producing same App 20050084704 - Osanai, Hideyo ; et al.	2005-04-21
Copper powder for electrically conductive paste Grant 6,881,240 - Sano , et al. April 19, 2	2005-04-19
Copper powder and process for producing copper powder Grant 6,875,252 - Sano , et al. April 5, 2	2005-04-05
Manufacturing method and manufacturing device of metal clad film App 20050061423 - Kohayashi, Shuichi	2005-03-24
Metal/ceramic bonding article and method for producing same Grant 6,858,151 - Tsukaguchi , et al. February 22, 2	2005-02-22
Mold and method for manufacturing metal-ceramic composite member App 20050016707 - Osanai, Hideyo ; et al.	2005-01-27
Ferromagnetic iron alloy powder for magnetic recording medium and method of producing the same Grant 6,841,271 - Matsumoto , et al. January 11, 2	2005-01-11
Battery characteristic evaluation device and battery characteristic evaluating method App 20050001588 - Kitamura, Toshiya ; et al.	2005-01-06
Apparatus for metal purification Grant 6,838,045 - Tayama , et al. January 4, 2	2005-01-04
Method for leaching zinc concentrate Grant 6,835,230 - Kanno , et al. December 28, 2	2004-12-28
Wire saw and cutting method thereof Grant 6,832,606 - Yamada , et al. December 21, 2	2004-12-21
Oxide superconductor current lead and method of manufacturing the same, and superconducting system App 20040222011 - Kohayashi, Shuichi ; et al.	2004-11-11
Process for producing high-purity metals Grant 6,814,779 - Tayama , et al. November 9, 2	2004-11-09
Oxide superconductor thick film and method for manufacturing the same Grant 6,809,042 - Kojima , et al. October 26, 2	2004-10-26
Apparatus for enhanced purification of high-purity metals Grant 6,805,833 - Tayama , et al. October 19, 2	2004-10-19
Radiation plate and power semiconductor module ic package App 20040194861 - Endou, Hideki ; et al.	2004-10-07
Ceramic circuit board and power module Grant 6,791,180 - Kitamura , et al. September 14, 2	2004-09-14
High-purity metal App 20040166016 - Tayama, Kishio ; et al.	2004-08-26
Metal/ceramic bonding article and method for producing same Grant 6,780,520 - Tsukaguchi , et al. August 24, 2	2004-08-24
Vacuum heat treatment furnace and method of and apparatus for measuring carbon concentration in atmosphere having reduced pressure App 20040149006 - Juryozawa, Hidetoshi ; et al.	2004-08-05
Apparatus, mold, and method for manufacturing metal-ceramic composite member App 20040123968 - Osanai, Hideyo ; et al.	2004-07-01
Oxide superconductor thick film and method for manufacturing the same App 20040110641 - Kojima, Masahiro ; et al.	2004-06-10
Pretreating method before plating and composites having a plated coat Grant 6,737,173 - Iyoda , et al. May 18, 2	2004-05-18
Apparatus for metal purification App 20040089986 - Tayama, Kishio ; et al.	2004-05-13
Nitrided maraging steel and method of manufacture thereof Grant 6,733,600 - Heishi , et al. May 11, 2	2004-05-11
Method and apparatus for enhanced purification of high-purity metals App 20040083854 - Tayama, Kishio ; et al.	2004-05-06
Process for producing ceramic circuit boards App 20040069528 - Sakuraba, Masami ; et al.	2004-04-15
Apparatus for leaching zinc concentrates App 20040065987 - Kanno, Manabu ; et al.	2004-04-08
Vacuum heat treatment furnace Grant 6,709,629 - Juryozawa , et al. March 23, 2	2004-03-23
Copper-base alloys having improved punching properties on press and a process for producing them Grant 6,699,337 - Hatakeyama , et al. March 2, 2	2004-03-02
Method of recovering sulfur from minerals and other sulfur-containing compounds Grant 6,696,037 - Watanabe , et al. February 24, 2	2004-02-24
Copper particle clusters and powder containing the same suitable as conductive filler of conductive paste App 20040026669 - Sano, Kazushi ; et al.	2004-02-12
Metal/ceramic circuit board Grant 6,686,030 - Tsukaguchi , et al. February 3, 2	2004-02-03
Sliding member having excellent seizure resistance and method for producing the same App 20040000492 - Ogawa, Osamu ; et al.	2004-01-01
Power module member manufactured by wet treatment, and wet treatment method and wet treatment equipment thereof App 20030213773 - Iyoda, Ken ; et al.	2003-11-20
Pretreating method before plating and composites having a plated coat App 20030186071 - Iyoda, Ken ; et al.	2003-10-02
Process for producing connector copper alloys Grant 6,627,011 - Sugawara , et al. September 30, 2	2003-09-30
High-purity silver wires for use in recording, acoustic or image transmission applications Grant 6,627,149 - Tayama , et al. September 30, 2	2003-09-30
Copper particle clusters and powder containing the same suitable as conductive filler of conductive paste Grant 6,620,344 - Sano , et al. September 16, 2	2003-09-16
Metal/ceramic bonding article Grant 6,613,450 - Tsukaguchi , et al. September 2, 2	2003-09-02
Apparatus for enhanced purification of high-purity metals App 20030150293 - Tayama, Kishio ; et al.	2003-08-14
Method and apparatus for enhanced purification of high-purity metals App 20030145683 - Tayama, Kishio ; et al.	2003-08-07
High purity metals, process and apparatus for producing them by enhanced purification App 20030145684 - Tayama, Kishio ; et al.	2003-08-07
Connector copper alloys and a process for producing the same App 20030129076 - Sugawara, Akira ; et al.	2003-07-10
Oxide superconductor thick film and method for manufacturing the same App 20030096709 - Kojima, Masahiro ; et al.	2003-05-22
Copper-base alloys having resistance to dezincification App 20030095887 - Dong, Shu-xin	2003-05-22
Method and apparatus for leaching zinc concentrates App 20030041692 - Kanno, Manabu ; et al.	2003-03-06
Method of manufacturing a metal-ceramic circuit board App 20030037434 - Osanai, Hideyo ; et al.	2003-02-27
Tin-containing indium oxides, a process for producing them, a coating solution using them and electrically conductive coatings formed of them App 20030030036 - Inamura, Tatsumi ; et al.	2003-02-13
Anode compositions for use in alkaline cells, zinc alloy powders to make up said anode compositions, and alkaline cells using said anode compositions App 20030017396 - Harigae, Kenichi ; et al.	2003-01-23
Copper powder and process for producing copper powder App 20030015062 - Sano, Kazushi ; et al.	2003-01-23
Ferromagnetic powder Grant 6,506,264 - Hisano , et al. January 14, 2	2003-01-14
Vacuum heat treatment furnace and method of and apparatus for measuring carbon concentration in atmosphere having reduced pressure App 20020189322 - Juryozawa, Hidetoshi ; et al.	2002-12-19
Lamp apparatus for use in optical communication and a process for producing the same Grant 6,483,623 - Maruyama November 19, 2	2002-11-19
Insulating substrate boards for semiconductor and power modules App 20020164488 - Furo, Masahiro ; et al.	2002-11-07
High purity gallium for producing compound semiconductor, refining process and apparatus for the same App 20020162419 - Yamamura, Takeharu ; et al.	2002-11-07
Apparatus for producing high-purity silver materials Grant 6,444,164 - Tayama , et al. September 3, 2	2002-09-03
Silver-dispersed copper powder, process for producing the powder and conductive paste utilizing the powder App 20020117652 - Sano, Kazushi ; et al.	2002-08-29
Copper-base alloys having improved punching properties on press and a process for producing them App 20020108685 - Hatakeyama, Koichi ; et al.	2002-08-15
Copper alloys for use as connector materials having high resistance to stress corrosion cracking and a process for producing the same App 20020057985 - Ling, Le ; et al.	2002-05-16
Metal-ceramic circuit board and manufacturing method thereof App 20020050510 - Osanai, Hideyo ; et al.	2002-05-02
Photodetection method and photodetection device and photodetection/light emission device Grant 6,346,701 - Maruyama February 12, 2	2002-02-12
Copper-base alloys having resistance to dezincification App 20020015657 - Dong, Shu-xin	2002-02-07
Process for producing connector copper alloys App 20020006351 - Sugawara, Akira ; et al.	2002-01-17
Wear resistant copper base alloy, method of preparing the same and electrical part using the same Grant 6,336,979 - Sugawara , et al. January 8, 2	2002-01-08
Magnetic material and production method thereof Grant 6,319,485 - Nagatomi , et al. November 20, 2	2001-11-20
Apparatus for producing high-purity silver materials App 20010015113 - Tayama, Kishio ; et al.	2001-08-23
Copper base alloys and terminals using the same Grant 6,254,702 - Hana , et al. July 3, 2	2001-07-03
Copper powder and process for producing copper powder App 20010002558 - Sano, Kazushi ; et al.	2001-06-07
Metal-ceramic composite substrates, producing methods thereof and brazing materials for use in such method Grant 6,221,511 - Sakuraba , et al. April 24, 2	2001-04-24
Oxide superconductor Grant 6,172,007 - Yamaguchi , et al. January 9, 2	2001-01-09
Potassium-containing thin film and process for producing the same Grant 6,149,975 - Tasaki , et al. November 21, 2	2000-11-21
Leadframe made of a high-strength, high-electroconductivity copper alloy Grant 6,132,529 - Hatakeyama , et al. October 17, 2	2000-10-17
Starting powders for ITO production, ITO sinters and processes for producing such starting powders and ITO sinters Grant 6,099,982 - Okabe , et al. August 8, 2	2000-08-08
Positive electrode active material for nonaqueous secondary cells and a process for producing said active material Grant 6,077,496 - Ito , et al. June 20, 2	2000-06-20
Metal-ceramic composite substrate Grant 6,071,592 - Sakuraba , et al. June 6, 2	2000-06-06
Component device for optical communication Grant 6,061,160 - Maruyama May 9, 2	2000-05-09
Semiconductor substrates of high reliability ceramic metal composites Grant 6,054,762 - Sakuraba , et al. April 25, 2	2000-04-25
Reagent for decomposing fluorocarbons Grant 6,022,489 - Izumikawa , et al. February 8, 2	2000-02-08
Display device with a transparent optical filter Grant 6,020,945 - Sawai , et al. February 1, 2	2000-02-01
Conductive paste compound for via hole filling, printed circuit board which uses the conductive paste, and method of manufacturing the same Grant 5,977,490 - Kawakita , et al. November 2, 1	1999-11-02
In-situ decontamination of subsurface waste using distributed iron powder Grant 5,975,798 - Liskowitz , et al. November 2, 1	1999-11-02
Process for preparing a ceramic electronic circuit board and process for preparing aluminum or aluminum alloy bonded ceramic material Grant 5,965,193 - Ning , et al. October 12, 1	1999-10-12
CVD precursors and film preparation method using the same Grant 5,952,047 - Tasaki , et al. September 14, 1	1999-09-14
Conductive paste compound for via hole filling, printed circuit board which uses the conductive paste, and method of manufacturing the same Grant 5,914,358 - Kawakita , et al. June 22, 1	1999-06-22
Method of subliming material in CVD film preparation method Grant 5,904,771 - Tasaki , et al. May 18, 1	1999-05-18
Method and apparatus for carburizing, quenching and tempering Grant 5,868,871 - Yokose , et al. February 9, 1	1999-02-09
Hard coated copper alloys, process for production thereof and connector terminals made therefrom Grant 5,849,424 - Sugawara , et al. December 15, 1	1998-12-15
Gas carburizing process and an apparatus therefor Grant 5,676,769 - Kawamura , et al. October 14, 1	1997-10-14
Conductive paste compound for via hole filling, printed circuit board which uses the conductive paste Grant 5,652,042 - Kawakita , et al. July 29, 1	1997-07-29
Method of separating and recovering valuable metals and non-metals from composite materials Grant 5,630,554 - Izumikawa , et al. May 20, 1	1997-05-20
Gallium based active material for the negative electrode, a negative electrode using the same, and batteries using said negative electrode Grant 5,462,821 - Onoue , et al. October 31, 1	1995-10-31
Method for steel surface hardening treatment and an apparatus therefor Grant 5,268,040 - Naito , et al. December 7, 1	1993-12-07
Process of recovering platinum group metal Grant 5,252,305 - Ezawa , et al. October 12, 1	1993-10-12
Permanent magnet alloy having improved resistance to oxidation and process for production thereof Grant 5,147,473 - Ueda , et al. September 15, 1	1992-09-15
Photodetecting circuit with compensated integration signal Grant 5,036,187 - Yoshida , et al. July 30, 1	1991-07-30
Copper conductor composition Grant 4,937,016 - Suehiro , et al. June 26, 1	1990-06-26
Monolithic female connector Grant 4,927,788 - Nakashima , et al. May 22, 1	1990-05-22
Copper conductor composition Grant 4,906,404 - Suehiro , et al. March 6, 1	1990-03-06
Method for bonding copper plate to alumina substrate and process for producing copper/alumina bonded assembly Grant 4,811,893 - Kanahara , et al. March 14, 1	1989-03-14
Hydrothermal process for producing magnetoplumbitic ferrite Grant 4,789,494 - Aoki , et al. December 6, 1	1988-12-06
One-pass type continuous multi-stage roll mill and rolling method Grant 4,735,074 - Saito , et al. April 5, 1	1988-04-05
Active material for negative poles of alkaline dry cells, and method for making said material Grant 4,592,974 - Takeda , et al. June 3, 1	1986-06-03
Method of recovering metals from industrial by-products Grant 4,572,822 - Abe , et al. February 25, 1	1986-02-25
Method of treating electrolytic solution of copper for purification and reuse thereof Grant 4,404,071 - Abe , et al. September 13, 1	1983-09-13
Apparatus for production of spherical grain ferrite powder Grant 4,352,717 - Watanabe , et al. October 5, 1	1982-10-05
Method for carrying out air oxidation and for adding fine bubbles to a liquid Grant 4,152,409 - Nagao , et al. May 1, 1	1979-05-01
Process for oxidation treatment of FE.sup.2+ in waste water Grant 4,139,456 - Yabuuchi , et al. February 13, 1	1979-02-13
Process for the removal of sulfur oxide from waste gas Grant RE29,813 - Yamamichi , et al. October 24, 1	1978-10-24
Process for producing hexagonal-system ferrite powder Grant 4,120,807 - Watanabe , et al. October 17, 1	1978-10-17
Process to make brittle boiler dust adhering to the water tube surface of a waste heat boiler of non-ferrous metal smelting furnace Grant 3,951,646 - Hamada , et al. April 20, 1	1976-04-20