Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10023947 | High strength steel plate with ultimate tensile strength of 900 MPa or more excellent in hydrogen embrittlement resistance and method of production of same | Masafumi Azuma, Noriyuki Suzuki, Naoki Maruyama, Akinobu Murasato, Hiroyuki Kawata +1 more | 2018-07-17 |
| 8747577 | High yield ratio and high-strength thin steel sheet superior in weldability and ductility, high-yield ratio high-strength hot-dip galvanized thin steel sheet, high-yield ratio high-strength hot-dip galvannealed thin steel sheet, and methods of production of same | Naoki Yoshinaga, Shunji Hiwatashi, Atsushi Itami | 2014-06-10 |
| 8657970 | Hot-rolled steel sheet excellent in fatigue properties and stretch-flange formability and method for manufacturing the same | Naoki Yoshinaga, Masafumi Azuma, Naoki Maruyama | 2014-02-25 |
| 8163108 | High-strength cold-rolled steel sheet, high-strength galvanized steel sheet, and high-strength alloyed hot-dip galvanized steel sheet having excellent formability and weldability, and methods for manufacturing the same | Masafumi Azuma, Naoki Yoshinaga, Naoki Maruyama, Noriyuki Suzuki | 2012-04-24 |
| 8084143 | High-yield-ratio and high-strength thin steel sheet superior in weldability and ductility, high-yield-ratio high-strength hot-dip galvanized thin steel sheet, high-yield ratio high-strength hot-dip galvannealed thin steel sheet, and methods of production of same | Naoki Yoshinaga, Shunji Hiwatashi, Atsushi Itami | 2011-12-27 |
| 7413780 | High strength galvannealed steel sheet excellent in workability and a method of production of the same | Kazuhiko Honda, Masaharu Kameda, Akio Saito, Tetsuo Nishiyama, Atsushi Itami | 2008-08-19 |
| 6544354 | High-strength steel sheet highly resistant to dynamic deformation and excellent in workability and process for the production thereof | Osamu Kawano, Junichi Wakita, Yuzo Takahashi, Hidesato Mabuchi, Manabu Takahashi +3 more | 2003-04-08 |
| 6511553 | Steel for steel excellent in workability and method of deoxidizing same | Junji Nakashima, Takashi Sawai, Mitsuo Uchimura, Wataru Yamada, Shigenori Tanaka +1 more | 2003-01-28 |
| 6319338 | High-strength steel plate having high dynamic deformation resistance and method of manufacturing the same | Osamu Kawano, Yuzo Takahashi, Junichi Wakita, Hidesato Mabuchi, Manabu Takahashi +3 more | 2001-11-20 |
| 6129992 | High-strength cold rolled steel sheet and high-strength plated steel sheet possessing improved geomagnetic shielding properties and process for producing the same | Satoru Tanaka, Kazuo Koyama, Yujiro Miyauchi, Takeshi Kubota, Atsushi Itami +3 more | 2000-10-10 |
| 5855696 | Ultra low carbon, cold rolled steel sheet and galvanized steel sheet having improved fatigue properties and processes for producing the same | Makoto Tezuka, Kohsaku Ushioda, Shiro Fujii, Atsushi Itami, Tatsuo Yokoi | 1999-01-05 |
| 5618355 | High-strength steel sheet suitable for deep drawing and process for producing the same | Kazuo Koyama, Matsuo Usuda, Manabu Takahashi, Shunji Hiwatashi, Kaoru Kawasaki | 1997-04-08 |