Patent | Date |
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Electric resistance welded steel pipe for torsion beam Grant 11,028,456 - Fukushi , et al. June 8, 2 | 2021-06-08 |
Longitudinal Seam Welded Steel Pipe App 20200032931 - FUJIYAMA; Naoto ;   et al. | 2020-01-30 |
Longitudinal Seam Welded Steel Pipe App 20190381593 - FUJIYAMA; Naoto ;   et al. | 2019-12-19 |
Pipeline and manufacturing method thereof Grant 10,449,636 - Nagata , et al. Oc | 2019-10-22 |
Electric Resistance Welded Steel Pipe For Torsion Beam App 20190217424 - FUKUSHI; Takaaki ;   et al. | 2019-07-18 |
Pipeline And Manufacturing Method Thereof App 20170304953 - NAGATA; Yukinobu ;   et al. | 2017-10-26 |
Pipeline and manufacturing method thereof Grant 9,737,962 - Nagata , et al. August 22, 2 | 2017-08-22 |
Electric resistance welded steel pipe Grant 9,726,305 - Shinohara , et al. August 8, 2 | 2017-08-08 |
Electric Resistance Welded Steel Pipe App 20150219249 - Shinohara; Yasuhiro ;   et al. | 2015-08-06 |
Liquid phase diffusion bonded pipe joint Grant 8,955,887 - Tsuru , et al. February 17, 2 | 2015-02-17 |
Pipeline And Manufacturing Method Thereof App 20150004426 - Nagata; Yukinobu ;   et al. | 2015-01-01 |
Thick welded steel pipe excellent in low temperature toughness, manufacturing method of thick welded steel pipe excellent in low temperature toughness, and steel plate for manufacturing thick welded steel pipe Grant 8,871,039 - Shinohara , et al. October 28, 2 | 2014-10-28 |
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 |
Thick Welded Steel Pipe Excellent In Low Temperature Toughness, Manufacturing Method Of Thick Welded Steel Pipe Excellent In Low Temperature Toughness, And Steel Plate For Manufacturing Thick Welded Steel Pipe App 20130037162 - Shinohara; Yasuhiro ;   et al. | 2013-02-14 |
High-strength steel pipe and producing method thereof App 20120118425 - Nagai; Kensuke ;   et al. | 2012-05-17 |
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 |
Steel sheet excellent in workability Grant 8,052,807 - Yoshinaga , et al. November 8, 2 | 2011-11-08 |
LIQUID PHASE DIFFUSION BONDED PIPE JOINT AND METHOD OF PRODUCTION OF SAME (As Amended) App 20110148102 - Tsure; Eiji ;   et al. | 2011-06-23 |
Cold-rolled steel sheet excellent in workability Grant 7,776,161 - Yoshinaga , et al. August 17, 2 | 2010-08-17 |
Method to produce steel sheet excellent in workability Grant 7,749,343 - Yoshinaga , et al. July 6, 2 | 2010-07-06 |
Steel plate exhibiting excellent workability and method for producing the same Grant 7,534,312 - Yoshinaga , et al. May 19, 2 | 2009-05-19 |
High Strength Seamless Steel Pipe for Machine Structure Use Superior in Toughness and Weldability, and Method of Production of The Same App 20090065102 - Shinohara; Yasuhiro ;   et al. | 2009-03-12 |
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 |
Steel Sheet Excellent in Workability and Method for Producing the Same App 20080308200 - Yoshinaga; Naoki ;   et al. | 2008-12-18 |
Steel Sheet Excellent in Workability and Method for Producing the Same App 20080295924 - Yoshinaga; Naoki ;   et al. | 2008-12-04 |
Steel Sheet Excellent In Workability And Method For Producing The Same App 20080166257 - Yoshinaga; Naoki ;   et al. | 2008-07-10 |
Liquid phase diffusion welded metal-made precision machine component and production method thereof Grant 6,913,842 - Hasegawa , et al. July 5, 2 | 2005-07-05 |
Steel pipe excellent in formability and method of producing the same Grant 6,866,725 - Fujita , et al. March 15, 2 | 2005-03-15 |
Steel plate exhibiting excellent workability and method for producing the same App 20040238081 - Yoshinaga, Naoki ;   et al. | 2004-12-02 |
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 having high formability and method for producing the same Grant 6,632,296 - Yoshinaga , et al. October 14, 2 | 2003-10-14 |
Steel Pipe Having High Formability And Method For Producing The Same App 20030131909 - Yoshinaga, Naoki ;   et al. | 2003-07-17 |
Steel pipe excellent in formability and method for producing thereof App 20030116238 - Fujita, Nobuhiro ;   et al. | 2003-06-26 |
Liquid phase diffusion welded metal-made precision machine component and production method thereof App 20030044637 - Hasegawa, Yasushi ;   et al. | 2003-03-06 |