Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11028456 | Electric resistance welded steel pipe for torsion beam | Takaaki Fukushi, Hideki Hamatani | 2021-06-08 |
| 10449636 | Pipeline and manufacturing method thereof | Yukinobu Nagata, Eiji Tsuru | 2019-10-22 |
| 9737962 | Pipeline and manufacturing method thereof | Yukinobu Nagata, Eiji Tsuru | 2017-08-22 |
| 9726305 | Electric resistance welded steel pipe | Kensuke Nagai, Masakazu Ozaki | 2017-08-08 |
| 8955887 | Liquid phase diffusion bonded pipe joint | Eiji Tsuru, Yasushi Hasegawa, Yuichi Sato | 2015-02-17 |
| 8871039 | 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 | Takuya Hara, Naoki Doi, Eiichi Yamashita | 2014-10-28 |
| 8715430 | High strength steel plate and high strength welded pipe excellent in ductile fracture characteristic and methods of production of same | Takuya Hara, Hitoshi Asahi, Yoshio Terada | 2014-05-06 |
| 8685182 | High-strength steel pipe and producing method thereof | Kensuke Nagai, Shinya Sakamoto, Takuya Hara, Hitoshi Asahi | 2014-04-01 |
| 8070887 | High-strength steel sheet and high-strength steel pipe excellent in deformability and method for producing the same | Hitoshi Asahi, Takuya Hara | 2011-12-06 |
| 8052807 | Steel sheet excellent in workability | Naoki Yoshinaga, Nobuhiro Fujita, Manabu Takahashi, Koji Hashimoto, Shinya Sakamoto +2 more | 2011-11-08 |
| 7776161 | Cold-rolled steel sheet excellent in workability | Naoki Yoshinaga, Nobuhiro Fujita, Manabu Takahashi, Koji Hashimoto, Shinya Sakamoto +2 more | 2010-08-17 |
| 7749343 | Method to produce steel sheet excellent in workability | Naoki Yoshinaga, Nobuhiro Fujita, Manabu Takahashi, Koji Hashimoto, Shinya Sakamoto +2 more | 2010-07-06 |
| 7534312 | Steel plate exhibiting excellent workability and method for producing the same | Naoki Yoshinaga, Nobuhiro Fujita, Manabu Takahashi, Koji Hashimoto, Shinya Sakamoto +2 more | 2009-05-19 |
| 6913842 | Liquid phase diffusion welded metal-made precision machine component and production method thereof | Yasushi Hasegawa, Yutaka Takagi | 2005-07-05 |
| 6866725 | Steel pipe excellent in formability and method of producing the same | Nobuhiro Fujita, Naoki Yoshinaga, Manabu Takahashi, Hitoshi Asahi, Yasushi Hasegawa | 2005-03-15 |
| 6632296 | Steel pipe having high formability and method for producing the same | Naoki Yoshinaga, Nobuhiro Fujita, Manabu Takahashi, Tohru Yoshida, Natsuko Sugiura | 2003-10-14 |