Watanabe; Kazushi

Patent Applications and Registrations

Patent applications and USPTO patent grants for Watanabe; Kazushi.The latest application filed is for "quinazoline compound".

Company Profile

5.123.50

Watanabe; Kazushi - Nagaokakyo JP
Watanabe; Kazushi - Tokyo JP
WATANABE; Kazushi - Nagaokakyo-shi JP
Watanabe; Kazushi - Mishima JP
Watanabe; Kazushi - Mishima-shi JP
Watanabe; Kazushi - Shinagawa-ku JP
Watanabe; Kazushi - Shizuoka JP
Watanabe, Kazushi - Yokohama JP
Watanabe; Kazushi - Ohtake JP
Watanabe; Kazushi - Hiroshima-ken JP
Watanabe; Kazushi - Hamamatsu JP
Watanabe; Kazushi - Hiroshima JP
Watanabe; Kazushi - Nagaoka 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
Elastic wave device Grant 10,862,450 - Fujiya , et al. December 8, 2	2020-12-08
Quinazoline compound Grant 10,774,082 - Kuramoto , et al. Sept	2020-09-15
Quinazoline Compound App 20200140437 - Kuramoto; Kazuyuki ; et al.	2020-05-07
Quinazoline compound Grant 10,556,906 - Kuramoto , et al. Feb	2020-02-11
Quinazoline Compound App 20190292182 - Kuramoto; Kazuyuki ; et al.	2019-09-26
Electronic component device, method of mounting electronic component device on circuit board, and mounting structure of electronic component device on circuit board Grant 10,319,682 - Watanabe	2019-06-11
Elastic Wave Device App 20190140615 - FUJIYA; Masaharu ; et al.	2019-05-09
Elastic Wave Device App 20180102759 - NISHI; Hiroyuki ; et al.	2018-04-12
Electronic Component Device, Method Of Mounting Electronic Component Device On Circuit Board, And Mounting Structure Of Electronic Component Device On Circuit Board App 20180005950 - WATANABE; Kazushi	2018-01-04
Elastic wave device Grant 9,799,819 - Shin , et al. October 24, 2	2017-10-24
Ladder surface acoustic wave filter Grant 9,543,924 - Watanabe January 10, 2	2017-01-10
Elastic Wave Device App 20150372659 - SHIN; Yasuaki ; et al.	2015-12-24
Antenna Branching Filter App 20150222247 - WATANABE; Kazushi	2015-08-06
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus Grant 9,046,860 - Watanabe , et al. June 2, 2	2015-06-02
Ladder Surface Acoustic Wave Filter App 20150022283 - WATANABE; Kazushi	2015-01-22
Coupling Part, Photosensitive Drum, Process Cartridge And Electrophotographic Image Forming Apparatus App 20140205322 - Watanabe; Kazushi ; et al.	2014-07-24
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus Grant 8,725,042 - Watanabe , et al. May 13, 2	2014-05-13
Piperidine derivative Grant 8,513,422 - Kakefuda , et al. August 20, 2	2013-08-20
Antagonist For Mutant Androgen Receptor App 20130197009 - Ideyama; Yukitaka ; et al.	2013-08-01
Digital controller for controlling output voltage under large variations in load and supply voltage Grant 8,285,400 - Higuchi , et al. October 9, 2	2012-10-09
Digital controller Grant 8,099,199 - Takegami , et al. January 17, 2	2012-01-17
Aminoindane derivative or salt thereof Grant 8,013,018 - Hayashibe , et al. September 6, 2	2011-09-06
Coupling Part, Photosensitive Drum, Process Cartridge And Electrophotographic Image Forming Apparatus App 20110211863 - Watanabe; Kazushi ; et al.	2011-09-01
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus Grant 7,920,806 - Noda , et al. April 5, 2	2011-04-05
Digital Controller For Controlling Output Voltage Under Large Variations In Load And Supply Voltage App 20100114399 - Higuchi; Kouji ; et al.	2010-05-06
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus Grant 7,660,545 - Noda , et al. February 9, 2	2010-02-09
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus Grant 7,630,661 - Noda , et al. December 8, 2	2009-12-08
Coupling Part, Photosensitive Drum, Process Cartridge And Electrophotographic Image Forming Apparatus App 20090290908 - Noda; Shinya ; et al.	2009-11-26
Robust digital controller and its designing device Grant 7,620,462 - Higuchi , et al. November 17, 2	2009-11-17
Aminoindane Derivative Or Salt Thereof App 20090186916 - Hayashibe; Satoshi ; et al.	2009-07-23
Digital Controller App 20090099704 - Takegami; Eiji ; et al.	2009-04-16
Coupling Part, Photosensitive Drum, Process Cartridge And Electrophotographic Image Forming Apparatus App 20090074452 - NODA; SHINYA ; et al.	2009-03-19
Coupling Part, Photosensitive Drum, Process Cartridge And Electrophotographic Image Forming Apparatus App 20090074453 - NODA; SHINYA ; et al.	2009-03-19
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus Grant 7,489,885 - Noda , et al. February 10, 2	2009-02-10
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus Grant 7,403,733 - Watanabe , et al. July 22, 2	2008-07-22
Coupling Part, Photosensitive Drum, Process Cartridge And Electrophotographic Image Forming Apparatus App 20080063429 - Watanabe; Kazushi ; et al.	2008-03-13
Coupling Part, Photosensitive Drum, Process Cartridge And Electrophotograhpic Image Forming Apparatus App 20080056754 - Noda; Shinya ; et al.	2008-03-06
Robust Digital Controller and Its Designing Device App 20070250186 - Higuchi; Kouji ; et al.	2007-10-25
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus Grant 7,274,896 - Kawai , et al. September 25, 2	2007-09-25
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus Grant 7,248,814 - Kawai , et al. July 24, 2	2007-07-24
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus Grant 7,231,161 - Noda , et al. June 12, 2	2007-06-12
Coupling Part, Photosensitive Drum, Process Cartridge And Electrophotographic Image Forming Apparatus App 20070104511 - Kawai; Toshiharu ; et al.	2007-05-10
Coupling Part, Photosensitive Drum, Process Cartridge And Electrophotographic Image Forming Apparatus App 20070104510 - Kawai; Toshiharu ; et al.	2007-05-10
Assembling method for developing roller Grant 7,156,797 - Komatsu , et al. January 2, 2	2007-01-02
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus App 20060198654 - Noda; Shinya ; et al.	2006-09-07
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus Grant 7,092,655 - Noda , et al. August 15, 2	2006-08-15
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus Grant 6,999,696 - Noda , et al. February 14, 2	2006-02-14
Process cartridge and image forming apparatus Grant 6,987,938 - Murakami , et al. January 17, 2	2006-01-17
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus App 20060008287 - Noda; Shinya ; et al.	2006-01-12
Developing apparatus having a sheet preventing a developing agent from leaking out of a container opening Grant 6,970,667 - Watanabe , et al. November 29, 2	2005-11-29
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus App 20050163526 - Kawai, Toshiharu ; et al.	2005-07-28
Process cartridge and electrophotographic image forming apparatus Grant 6,898,392 - Karakama , et al. May 24, 2	2005-05-24
Electrophotographic Photosensitive Drum Having Twisted Projection Coupling Member Engageable With Twisted Hole Driving Coupling Of Motor, And Process Cartridge And Electrophotographic Image Forming Apparatus Using Same Grant 6,885,838 - Kawai , et al. April 26, 2	2005-04-26
Image forming apparatus having process cartridge with connection arrangement for side frame bodies Grant 6,868,243 - Watanabe , et al. March 15, 2	2005-03-15
Memory member, unit, process cartridge and electrophotographic image forming apparatus Grant 6,832,056 - Watanabe , et al. December 14, 2	2004-12-14
Electrophotographic image forming apparatus and process cartridges Grant 6,804,483 - Yokoi , et al. October 12, 2	2004-10-12
Process cartridge and image forming apparatus App 20040190933 - Murakami, Ryuta ; et al.	2004-09-30
Image forming apparatus and process cartridge mountable therein in which a gap exists between a main assembly antenna of the apparatus and a memory antenna of the process cartridge mounted thereon Grant 6,782,222 - Ito , et al. August 24, 2	2004-08-24
Memory member, unit, process cartridge and electrophotographic image forming apparatus Grant 6,782,213 - Watanabe , et al. August 24, 2	2004-08-24
Assembling method for developing roller App 20040134070 - Komatsu, Noriyuki ; et al.	2004-07-15
Developing apparatus having a sheet preventing a developing agent from leaking out of a container opening App 20040126130 - Watanabe, Kazushi ; et al.	2004-07-01
Process cartridge including convex and concave portions and electrophotographic image forming apparatus to which such a process cartridge is detachably mountable Grant 6,738,589 - Karakama , et al. May 18, 2	2004-05-18
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus App 20040086300 - Kawai, Toshiharu ; et al.	2004-05-06
Developing device, process cartridge and electrophotographic image forming apparatus Grant 6,704,525 - Oguma , et al. March 9, 2	2004-03-09
Memory member, unit, process cartridge and electrophotographic image forming apparatus Grant 6,701,107 - Karakama , et al. March 2, 2	2004-03-02
Cartridge having developer containing portion with inner pressure regulating function Grant 6,701,106 - Yokoi , et al. March 2, 2	2004-03-02
Memory member, unit, process cartridge and electrophotographic image forming apparatus Grant 6,697,578 - Watanabe , et al. February 24, 2	2004-02-24
Developing device, process cartridge, electrophotographic image forming apparatus, and developer container and method of assembling the developer container Grant 6,684,040 - Yokoi , et al. January 27, 2	2004-01-27
Process cartridge and electrophotographic image forming apparatus Grant 6,658,224 - Yokoi , et al. December 2, 2	2003-12-02
Process cartridge detachable from electrophotographic image forming apparatus having wireless communication Grant 6,654,567 - Karakama , et al. November 25, 2	2003-11-25
Process cartridge and electrophotographic image forming apparatus App 20030215257 - Karakama, Toshiyuki ; et al.	2003-11-20
Holder of electroconductive contactor, and method for producing the same Grant 6,642,728 - Kudo , et al. November 4, 2	2003-11-04
Developing device, process cartridge and electrophotographic image forming apparatus Grant 6,625,413 - Oguma , et al. September 23, 2	2003-09-23
Developing Device, Process Cartridge, Electrophotographic Image Forming Apparatus, And Developer Container And Method Of Assembling The Developer Container App 20030161657 - Yokoi, Akiyoshi ; et al.	2003-08-28
Developing apparatus mounted on image forming apparatus Grant 6,606,469 - Kikuchi , et al. August 12, 2	2003-08-12
Electric contact member and developing device, process cartridge, and electrophotographic image-forming apparatus using the electric contact member Grant 6,594,454 - Oguma , et al. July 15, 2	2003-07-15
Process cartridge and electrophotographic image forming apparatus using the same App 20030113131 - Watanabe, Kazushi ; et al.	2003-06-19
Memory member, unit, process cartridge and electrophotographic image forming apparatus App 20030108355 - Watanabe, Kazushi ; et al.	2003-06-12
Memory member, unit, process cartridge and electrophotographic image forming apparatus App 20030103774 - Watanabe, Kazushi ; et al.	2003-06-05
Process cartridge and image forming apparatus Grant 6,571,070 - Oguma , et al. May 27, 2	2003-05-27
Process cartridge and photosensitive drum driving mount Grant 6,501,927 - Watanabe , et al. December 31, 2	2002-12-31
Process cartridge and electrophotographic image forming apparatus Grant 6,501,926 - Watanabe , et al. December 31, 2	2002-12-31
Cartridge having developer containing portion with inner pressure regulating function App 20020131789 - Yokoi, Akiyoshi ; et al.	2002-09-19
Electrophotographic image forming apparatus and process cartridges App 20020131791 - Yokoi, Akiyoshi ; et al.	2002-09-19
Process cartridge and electrophotographic image forming apparatus App 20020122674 - Yokoi, Akiyoshi ; et al.	2002-09-05
Developing apparatus mounted on image forming apparatus App 20020110383 - Kikuchi, Ken ; et al.	2002-08-15
Process cartridge and electrophotographic image forming apparatus App 20020081125 - Karakama, ToshIyuki ; et al.	2002-06-27
Developing device, process cartridge and electrophotographic image forming apparatus App 20020067930 - Oguma, Toru ; et al.	2002-06-06
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus Grant 6,400,914 - Noda , et al. June 4, 2	2002-06-04
Electric contact member and developing device, process cartridge, and electrophotographic image-forming apparatus using the electric contact member App 20020064390 - Oguma, Toru ; et al.	2002-05-30
Developer amount detecting method, developing device, process cartridge and electrophotographic image forming apparatus Grant 6,397,017 - Sakai , et al. May 28, 2	2002-05-28
Developer amount detecting method, developing device, process cartridge and electrophotographic image forming apparatus Grant 6,397,018 - Matsumoto , et al. May 28, 2	2002-05-28
Process cartridge, electrophotographic image forming apparatus and developer amount detecting member Grant 6,377,759 - Abe , et al. April 23, 2	2002-04-23
Memory member, unit, process cartridge and electrophotographic image forming apparatus App 20020031357 - Watanabe, Kazushi ; et al.	2002-03-14
Unit, process cartridge and electrophotographic image forming apparatus App 20020031359 - Karakama, Toshiyuki ; et al.	2002-03-14
Electrophotographic image formation system, electrophotographic image forming apparatus and process cartridge App 20020025185 - Ito, Yoshihiro ; et al.	2002-02-28
Memory member, unit, process cartridge and electrophotographic image forming apparatus App 20020025186 - Karakama, Toshiyuki ; et al.	2002-02-28
Process cartridge, electrophotographic image forming apparatus, driving force transmission part and electrophotographic photosensitive drum Grant 6,349,188 - Kawai , et al. February 19, 2	2002-02-19
Coupling part, photosensitive drum, process cartridge and electrophotographic image forming apparatus App 20020018666 - Noda, Shinya ; et al.	2002-02-14
Electrophotographic image forming apparatus, process cartridge, and drive mount for photosensitive drum Grant 6,336,018 - Kawai , et al. January 1, 2	2002-01-01
Process cartridge and electrophotographic image forming apparatus Grant 6,330,409 - Watanabe , et al. December 11, 2	2001-12-11
Developing Device, process cartridge and electrophotographic image forming apparatus App 20010038758 - Oguma, Toru ; et al.	2001-11-08
Process cartridge and image forming apparatus App 20010017990 - Oguma, Toru ; et al.	2001-08-30
Electrophotographic image forming apparatus App 20010014226 - Sakurai, Kazushige ; et al.	2001-08-16
Process cartridge and electrophotographic image forming apparatus Grant 6,272,299 - Numagami , et al. August 7, 2	2001-08-07
Bearing, process cartridge and electrophotographic image forming apparatus Grant 6,246,849 - Yokoyama , et al. June 12, 2	2001-06-12
Process cartridge and drum mount for photosensitive drum Grant 6,240,266 - Watanabe , et al. May 29, 2	2001-05-29
Process cartridge having a coupling pin and a coupling pin comprising first, second, and third shaft portion Grant 6,236,821 - Yokoyama , et al. May 22, 2	2001-05-22
Process cartridge having drive mount for photosensitive drum Grant 6,226,478 - Watanabe , et al. May 1, 2	2001-05-01
Process cartridge, electrophotographic image forming apparatus driving force transmission part and electrophotographic photosensitive drum Grant 6,175,706 - Watanabe , et al. January 16, 2	2001-01-16
Process cartridge and electrophotographic image forming apparatus Grant 6,169,866 - Watanabe , et al. January 2, 2	2001-01-02
Process cartridge electrophotographic image forming apparatus and positioning there between Grant 6,163,665 - Watanabe , et al. December 19, 2	2000-12-19
Developing device having magnetic seals Grant 6,160,976 - Karakama , et al. December 12, 2	2000-12-12
Process cartridge, electrophotographic image forming apparatus, driving force transmission part, and electrophotographic photosensitive drum Grant 6,128,454 - Kawai , et al. October 3, 2	2000-10-03
End cover, process cartridge and assembling method for process cartridge Grant 6,118,960 - Nakagawa , et al. September 12, 2	2000-09-12
Detachable two-frame process cartridge for an image forming apparatus Grant 6,118,961 - Nomura , et al. September 12, 2	2000-09-12
Electrophotographic image forming apparatus to which a process cartridge is detachably mountable and such a process cartridge whose developing member is supported at a position which deviates from a developing position Grant 6,101,354 - Nakagawa , et al. August 8, 2	2000-08-08
Process cartridge having shiftable cover with specific spacing between cover and cartridge Grant 6,097,911 - Watanabe , et al. August 1, 2	2000-08-01
Electrical connector, process cartridge and electrophotographic image forming apparatus Grant 6,097,908 - Uchiyama , et al. August 1, 2	2000-08-01
Photosensitive drum mounting method, process cartridge and electrophotographic image forming apparatus Grant 6,097,909 - Watanabe , et al. August 1, 2	2000-08-01
Process cartridge having shiftable cover and guide member for directing airflow Grant 6,075,956 - Watanabe , et al. June 13, 2	2000-06-13
Process cartridge, electrophotographic image forming apparatus and coupling therebetween Grant 6,070,028 - Odagawa , et al. May 30, 2	2000-05-30
Process cartridge and electrophotographic image forming apparatus Grant 6,029,032 - Watanabe , et al. February 22, 2	2000-02-22
Crosslinkable polymer composition, molded article therefrom, process for the preparation thereof, crosslinked nonwoven cloth, and process for the preparation thereof Grant 6,022,550 - Watanabe February 8, 2	2000-02-08
Assembling method of process cartridge, assembling method and process cartridge Grant 6,016,413 - Yokoyama , et al. January 18, 2	2000-01-18
Process cartridge and electrophotographic image forming apparatus having an improved driving system Grant 6,006,058 - Watanabe , et al. December 21, 1	1999-12-21
Process cartridge and image forming apparatus usable therewith Grant 5,987,278 - Nomura , et al. November 16, 1	1999-11-16
Process cartridge, assembling method of process cartridge, assembling method of toner container and electrophotographic image forming apparatus Grant 5,966,568 - Numagami , et al. October 12, 1	1999-10-12
Process cartridge and electrophotographic image forming apparatus Grant 5,937,242 - Yokoyama , et al. August 10, 1	1999-08-10
Process cartridge and electrophotographic image forming apparatus Grant 5,937,239 - Watanabe , et al. August 10, 1	1999-08-10
Photosensitive drum provided in an image forming apparatus including helical gears disposed at an end of the drum Grant 5,926,672 - Nishibata , et al. July 20, 1	1999-07-20
Process cartridge, electrophotographic image forming apparatus, driving force transmission part, and electrophotographic photosensitive drum Grant 5,903,803 - Kawai , et al. May 11, 1	1999-05-11
Dip sheet adhering method, cleaning device, process and image forming apparatus Grant 5,884,124 - Karakama , et al. March 16, 1	1999-03-16
Process cartridge mountable in an image forming system and a method for assembling a cleaning device Grant 5,828,928 - Sasago , et al. October 27, 1	1998-10-27
Image forming system and process cartridge having particular arrangement of electrical contacts Grant 5,828,929 - Watanabe , et al. October 27, 1	1998-10-27
Process cartridge including a seal member formed from a liquid-foam material Grant 5,809,374 - Tsuda , et al. September 15, 1	1998-09-15
Process cartridge with seal members Grant 5,794,101 - Watanabe , et al. August 11, 1	1998-08-11
Developing apparatus Grant 5,790,923 - Oguma , et al. August 4, 1	1998-08-04
Biodegradable polyester resin composition, and a biodegradable molded article Grant 5,786,408 - Kuroda , et al. July 28, 1	1998-07-28
Electrode member, developing apparatus, process cartridge and image forming apparatus Grant 5,768,658 - Watanabe , et al. June 16, 1	1998-06-16
Lacton-modified polyvinyl alcohol and permanently anti-static resin composition Grant 5,712,334 - Watanabe , et al. January 27, 1	1998-01-27
Detachable two-frame process cartridge for an image forming apparatus Grant 5,682,579 - Nomura , et al. October 28, 1	1997-10-28
Image forming system having means to support at least one component of a process cartridge Grant 5,669,042 - Kobayashi , et al. September 16, 1	1997-09-16
Process cartridge having positioning member for positioning optical device Grant 5,659,847 - Tsuda , et al. August 19, 1	1997-08-19
Process cartridge including a spaced rolling members support feature and image forming apparatus using the same Grant 5,640,650 - Watanabe , et al. June 17, 1	1997-06-17
Process cartridge and image forming system on which process cartridge is mountable Grant 5,623,328 - Tsuda , et al. April 22, 1	1997-04-22
Process cartridge with blade member having a flat-surface side and an angled-surface side Grant 5,608,509 - Shirai , et al. March 4, 1	1997-03-04
Photosensitive drum provided in an image forming apparatus including gears disposed at an end of drum Grant 5,602,623 - Nishibata , et al. February 11, 1	1997-02-11
Recording device capable of reading out data from a disk for editing and recording back to the disk Grant 5,586,093 - Honda , et al. December 17, 1	1996-12-17
Image forming system Grant 5,583,613 - Kobayashi , et al. December 10, 1	1996-12-10
Image bearing member having an asymmetrically weighted base, process cartridge and image forming apparatus Grant 5,488,459 - Tsuda , et al. January 30, 1	1996-01-30
Process cartridge and image forming system on which the process cartridge is mountable using a handgrip Grant 5,475,470 - Sasago , et al. December 12, 1	1995-12-12
Composition of polyamide, polyester and glycidyl vinylic copolymer Grant 5,475,058 - Horiuchi , et al. December 12, 1	1995-12-12
Blade member having a flat-surface side and an angled-surface side Grant 5,470,635 - Shirai , et al. November 28, 1	1995-11-28
Image forming apparatus and process cartridge detachable thereto with charging member pressure contact release feature Grant 5,465,136 - Watanabe November 7, 1	1995-11-07
Rotary member a process cartridge and an assembling method for rolling members Grant 5,463,446 - Watanabe , et al. October 31, 1	1995-10-31
Developing device for copying machine Grant D362,014 - Ishibashi , et al. September 5, 1	1995-09-05
Process cartridge and image forming apparatus Grant 5,404,198 - Noda , et al. April 4, 1	1995-04-04
Developing device for copying machine Grant D353,616 - Ishibashi , et al. December 20, 1	1994-12-20
Process cartridge and image forming apparatus using same Grant 5,345,294 - Nomura , et al. September 6, 1	1994-09-06
Process cartridge and image forming apparatus on which process cartridge is mountable Grant 5,331,372 - Tsuda , et al. July 19, 1	1994-07-19
Detachable two-frame process cartridge for an image forming apparatus Grant 5,294,960 - Nomura , et al. March 15, 1	1994-03-15
Sheet feeding device Grant 5,240,242 - Ando , et al. August 31, 1	1993-08-31
Process cartridge detachably mountable to image forming apparatus Grant 5,223,893 - Ikemoto , et al. June 29, 1	1993-06-29
Process cartridge detachably mountable to image forming apparatus featuring an injectable sealing member Grant 5,208,634 - Ikemoto , et al. May 4, 1	1993-05-04
Process cartridge detachably mountable to image forming apparatus featuring a peripherally supported image bearing drum Grant 5,151,734 - Tsuda , et al. September 29, 1	1992-09-29
DC-DC converter Grant 5,111,372 - Kameyama , et al. May 5, 1	1992-05-05
Copier with retractable charging unit to prevent damage to drum when removing process cartridge Grant 5,095,335 - Watanabe , et al. March 10, 1	1992-03-10
DC-DC converter Grant 5,086,381 - Kameyama , et al. February 4, 1	1992-02-04
Full-wave output type forward converter Grant 4,787,020 - Hiramatsu , et al. November 22, 1	1988-11-22