| Patent | Date |
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High strength steel pipe for line pipe superior in low temperature toughness and high strength steel plate for line pipe and methods of production of the same
Grant 9,719,615 - Hara , et al. August 1, 2 | 2017-08-01 |
Oil country tubular goods with dual phase structure and producing method thereof
Grant 9,188,253 - Sawamura , et al. November 17, 2 | 2015-11-17 |
Electric resistance welded oil country tubular goods and manufacturing method of electric resistance welded oil country tubular goods
Grant 9,126,283 - Sawamura , et al. September 8, 2 | 2015-09-08 |
Method of production of electric resistance welded steel pipe and high Si or high Cr electric resistance welded steel pipe
Grant 9,050,681 - Hamatani , et al. June 9, 2 | 2015-06-09 |
High-strength welded steel pipe and method for producing the same
Grant 8,974,610 - Fujishiro , et al. March 10, 2 | 2015-03-10 |
Steel pipe excellent in deformation characteristics and method of producing the same
Grant 8,920,583 - Asahi , et al. December 30, 2 | 2014-12-30 |
Steel pipe excellent in deformation characteristics and method of producing the same
Grant 08920583 - | 2014-12-30 |
Steel plate or steel pipe with small occurrence of Bauschinger effect and methods of production of same
Grant 8,815,024 - Asahi , et al. August 26, 2 | 2014-08-26 |
High Strength Steel Pipe For Line Pipe Superior In Low Temperature Toughness And High Strength Steel Plate For Line Pipe And Methods Of Production Of The Same
App 20140227126 - Hara; Takuya ; et al. | 2014-08-14 |
High strength steel pipe for line pipe superior in low temperature toughness and high strength steel plate for line pipe and methods of production of the same
Grant 8,764,918 - Hara , et al. July 1, 2 | 2014-07-01 |
High strength steel plate and high strength welded pipe excellent in ductile fracture characteristic and methods of production of same
Grant 8,715,430 - Hara , et al. May 6, 2 | 2014-05-06 |
High-strength steel pipe and producing method thereof
Grant 8,685,182 - Nagai , et al. April 1, 2 | 2014-04-01 |
High strength welded steel tube superior in hydrogen embrittlement cracking resistance of weld metal and method of production of same
Grant 8,653,400 - Tsuru , et al. February 18, 2 | 2014-02-18 |
Oil Country Tubular Goods With Dual Phase Structure And Producing Method Thereof
App 20130118632 - Sawamura; Mitsuru ; et al. | 2013-05-16 |
Electric Resistance Welded Oil Country Tubular Goods And Manufacturing Method Of Electric Resistance Welded Oil Country Tubular Goods
App 20130092280 - Sawamura; Mitsuru ; et al. | 2013-04-18 |
High-strength Welded Steel Pipe And Method For Producing The Same
App 20120291907 - Fujishiro; Taishi ; et al. | 2012-11-22 |
High-strength steel pipe and producing method thereof
App 20120118425 - Nagai; Kensuke ; et al. | 2012-05-17 |
High strength steel plate, steel pipe with excellent low temperature toughness, and method of production of same
Grant 8,110,292 - Fujishiro , et al. February 7, 2 | 2012-02-07 |
High strength thick welded steel pipe for line pipe superior in low temperature toughness and method of production of the same
Grant 8,084,144 - Hara , et al. December 27, 2 | 2011-12-27 |
High-strength steel sheet and high-strength steel pipe excellent in deformability and method for producing the same
Grant 8,070,887 - Asahi , et al. December 6, 2 | 2011-12-06 |
Ultrahigh strength welded joint and ultrahigh strength welded steel pipe excellent in cold cracking resistance of weld metal, and methods for producing the same
Grant 8,049,131 - Hara , et al. November 1, 2 | 2011-11-01 |
Welded steel pipe for high strength line pipe superior in low temperature toughness and method of production of the same
Grant 8,039,118 - Hara , et al. October 18, 2 | 2011-10-18 |
Ultrahigh strength welded joint and ultrahigh strength welded steel pipe excellent in cold cracking resistance of weld metal, and methods for producing the same
App 20110250471 - Hara; Takuya ; et al. | 2011-10-13 |
UOE steel pipe excellent in collapse strength and method of production thereof
Grant 7,967,926 - Tsuru , et al. June 28, 2 | 2011-06-28 |
Objective lens, optical pick-up device, and optical disk device
Grant 7,920,443 - Horinouchi , et al. April 5, 2 | 2011-04-05 |
Objective lens, optical pick-up device, and optical disk device
Grant 7,920,442 - Horinouchi , et al. April 5, 2 | 2011-04-05 |
UOE steel pipe excellent in collapse strength and method of production thereof
Grant 7,892,368 - Tsuru , et al. February 22, 2 | 2011-02-22 |
High Strength Steel Plate, Steel Pipe With Excellent Low Temperature Toughness, And Method Of Production Of Same
App 20110023991 - Fujishiro; Taishi ; et al. | 2011-02-03 |
Welded Steel Pipe For High Strength Line Pipe Superior In Low Temperature Toughness And Method Of Production Of The Same
App 20100330388 - Hara; Takuya ; et al. | 2010-12-30 |
Objective Lens, Optical Pick-up Device, And Optical Disk Device
App 20100315935 - Horinouchi; Shogo ; et al. | 2010-12-16 |
Objective Lens, Optical Pick-up Device, And Optical Disk Device
App 20100315936 - Horinouchi; Shogo ; et al. | 2010-12-16 |
Objective lens, optical pick-up device, and optical disk device
Grant 7,813,235 - Horinouchi , et al. October 12, 2 | 2010-10-12 |
High strength steel pipe for line pipe superior in low temperature toughness and high strength steel plate for line pipe and methods of production of the same
App 20100236668 - Hara; Takuya ; et al. | 2010-09-23 |
Steel plates for ultra-high-strength linepipes and ultra-high-strength linepipes having excellent low-temperature toughness and manufacturing methods thereof
Grant 7,736,447 - Asahi , et al. June 15, 2 | 2010-06-15 |
Method Of Production Of Electric Resistance Welded Steel Pipe And High Si Or High Cr Electric Resistance Welded Steel Pipe
App 20100104888 - Hamatani; Hideki ; et al. | 2010-04-29 |
High Strength Thick Welded Steel Pipe For Line Pipe Superior In Low Temperature Toughness And Method Of Production Of The Same
App 20100003535 - Hara; Takuya ; et al. | 2010-01-07 |
UOE steel pipe excellent in collapse strength and method of production thereof
App 20090320965 - Tsuru; Eiji ; et al. | 2009-12-31 |
High-strength steel pipe excellent in low temperature toughness and toughness at weld heat-affected zone
Grant 7,601,231 - Hara , et al. October 13, 2 | 2009-10-13 |
Steel pipe for high strength line pipe superior in strain aging resistance and steel plate for high strength line pipe and methods of production of the same
App 20090092514 - Asahi; Hitoshi ; et al. | 2009-04-09 |
Oil well pipe for expandable tubular applications excellent in post-expansion toughness and method of manufacturing the same
App 20090044882 - Asahi; Hitoshi ; et al. | 2009-02-19 |
High Strength Steel Plate and High Strength Welded Pipe Excellent in Ductile Fracture Characteristic and Methods of Production of Same
App 20090025835 - Hara; Takuya ; et al. | 2009-01-29 |
Oil country tubular goods excellent in collapse characteristics after expansion and method of production thereof
Grant 7,459,033 - Asahi , et al. December 2, 2 | 2008-12-02 |
Steel Plate or Steel Pipe with Small Occurrence of Bauschinger Effect and Methods of Production of Same
App 20080286504 - Asahi; Hitoshi ; et al. | 2008-11-20 |
High Strength Welded Steel Tube Superior in Hydrogen Embrittlement Cracking Resistance of Weld Metal and Method of Production of Same
App 20080257008 - Tsuru; Eiji ; et al. | 2008-10-23 |
Objective Lens, Optical Pick-up Device, And Optical Disk Device
App 20080031103 - HORINOUCHI; Shogo ; et al. | 2008-02-07 |
Objective lens, optical pick-up device, and optical disk device
Grant 7,301,864 - Horinouchi , et al. November 27, 2 | 2007-11-27 |
High Strength Dual Phase Steel With Low Yield Ratio, High Toughness and Superior Weldability
App 20070193666 - Asahi; Hitoshi ; et al. | 2007-08-23 |
Steel plates for ultra-high-strength linepipes and ultra-high-strength linepipes having excellent low-temperature toughness and manufacturing methods thereof
App 20070125462 - Asahi; Hitoshi ; et al. | 2007-06-07 |
Optical component and optical pickup device
App 20060285231 - Kiyomura; Yoshihiro ; et al. | 2006-12-21 |
Oil Country Tubular Goods Excellent In Collapse Characteristics After Expansion And Method Of Production Thereof
App 20050217768 - Asahi, Hitoshi ; et al. | 2005-10-06 |
Uoe steel pipe with excellent crash resistance, and method of manufacturing the uoe steel pipe
App 20050178456 - Tsuru, Eiji ; et al. | 2005-08-18 |
Steel pipe excellent in formability and method of producing the same
Grant 6,866,725 - Fujita , et al. March 15, 2 | 2005-03-15 |
Ultrahigh strength welded joint and ultrahigh strength welded steel pipe excellent in cold cracking resistance of weld metal, and methods for producing the same
App 20050016980 - Hara, Takuya ; et al. | 2005-01-27 |
Objective lens, optical pick-up device, and optical disk device
App 20050007906 - Horinouchi, Shogo ; et al. | 2005-01-13 |
High-strength steel pipe excellent in formability and burst resistance
Grant 6,782,921 - Tsuru , et al. August 31, 2 | 2004-08-31 |
High-strength steel excellent in low temperature toughness and toughness at weld heat-affected zone, mehtod for producing the same, and method for producing high-strength steel pipe
App 20040031544 - Hara, Takuya ; et al. | 2004-02-19 |
High-strength steel sheet and high-strength steel pipe excellent in deformability and method for producing the same
App 20030217795 - Asahi, Hitoshi ; et al. | 2003-11-27 |
Steel pipe excellent in formability and method for producing thereof
App 20030116238 - Fujita, Nobuhiro ; et al. | 2003-06-26 |
Steel having excellent outer surface SCC resistance for pipeline
Grant 6,517,643 - Asahi , et al. February 11, 2 | 2003-02-11 |
High strength steel material for oil well, excellent in sulfide stress cracking resistance, and production method thereof
App 20020104592 - Sakamoto, Shunji ; et al. | 2002-08-08 |
Ultra-high strength, weldable steels with excellent ultra-low temperature toughness
Grant 6,264,760 - Tamehiro , et al. July 24, 2 | 2001-07-24 |
Corrosion resisting steel and corrosion resisting oil well pipe having high corrosion resistance to carbon dioxide gas
Grant 6,248,187 - Asahi , et al. June 19, 2 | 2001-06-19 |
Method for producing ultra-high strength, weldable steels with superior toughness
Grant 6,248,191 - Luton , et al. June 19, 2 | 2001-06-19 |
Ultra-high strength, weldable, boron-containing steels with superior toughness
Grant 6,228,183 - Bangaru , et al. May 8, 2 | 2001-05-08 |
Ultra-high strength, weldable, essentially boron-free steels with superior toughness
Grant 6,224,689 - Koo , et al. May 1, 2 | 2001-05-01 |
Steel having improved toughness in welding heat-affected zone
Grant 5,985,053 - Hara , et al. November 16, 1 | 1999-11-16 |
Weldable high strength steel having excellent low temperature toughness
Grant 5,798,004 - Tamehiro , et al. August 25, 1 | 1998-08-25 |
High strength line pipe steel having low yield ratio and excellent in low temperature toughness
Grant 5,755,895 - Tamehiro , et al. May 26, 1 | 1998-05-26 |
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