Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11027361 | Spot-welded joint and spot welding method | Fuminori Watanabe, Seiji Furusako, Yasunobu Miyazaki, Hiroyuki Kawata, Tohru Okada +1 more | 2021-06-08 |
| 10544474 | High-strength cold-rolled steel sheet and method for producing the same | Masafumi Azuma, Takayuki Nozaki, Koichi Sato, Hiroyuki Kawata, Nobuhiro Fujita | 2020-01-28 |
| 10465272 | High-strength hot-dip galvanized steel sheet and high-strength alloyed hot-dip galvanized steel sheet having excellent plating adhesion, formability, and hole expandability with tensile strength of 980 MPa or more and manufacturing method therefor | Masafumi Azuma, Nobuhiro Fujita, Kohichi Sano | 2019-11-05 |
| 10407760 | Hot-dip galvanized steel sheet and manufacturing method thereof | Masafumi Azuma, Takayuki Nozaki, Manabu Takahashi, Nobuhiro Fujita | 2019-09-10 |
| 10351937 | High-strength steel sheet excellent in impact resistance and manufacturing method thereof, and high-strength galvanized steel sheet and manufacturing method thereof | Hiroyuki Kawata, Naoki Maruyama, Akinobu Murasato, Akinobu Minami, Hajime Hasegawa +1 more | 2019-07-16 |
| 10350701 | Method of spot welding | Yasunobu Miyazaki, Fuminori Watanabe, Kunio Hayashi, Hiroyuki Kawata, Seiji Furusako +1 more | 2019-07-16 |
| 10294551 | High-strength low-specific-gravity steel sheet having superior spot weldability | Masaharu Oka, Nobuhiro Fujita, Manabu Takahashi, Riki Okamoto | 2019-05-21 |
| 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, Yasuharu Sakuma +1 more | 2018-07-17 |
| 9970092 | Galvanized steel sheet and method of manufacturing the same | Takayuki Nozaki, Manabu Takahashi, Nobuhiro Fujita, Masafumi Azuma | 2018-05-15 |
| 9783878 | High-strength hot-dip galvanized steel sheet and high-strength alloyed hot-dip galvanized steel sheet having excellent plating adhesion, formability, and hole expandability with tensile strength of 980 MPa or more and manufacturing method therefor | Masafumi Azuma, Nobuhiro Fujita, Kohichi Sano | 2017-10-10 |
| 9546413 | Hot-rolled steel sheet and production method thereof | Takayuki Nozaki, Manabu Takahashi, Nobuhiro Fujita, Hiroshi Yoshida, Shinichiro Watanabe +3 more | 2017-01-17 |
| 9540720 | High-strength hot-dip galvanized steel sheet and high-strength alloyed hot-dip galvanized steel sheet having excellent formability and small material anisotropy with ultimate tensile strength of 980 MPa or more | Masafumi Azuma, Takayuki Nozaki, Nobuhiro Fujita, Manabu Takahashi | 2017-01-10 |
| 9410231 | Steel sheet and method of manufacturing steel sheet | Riki Okamoto, Natsuko Sugiura, Kohichi Sano, Naoki Yoshinaga, Kaoru Kawasaki | 2016-08-09 |
| 9139885 | High-strength steel sheet and high-strength zinc-coated steel sheet which have excellent ductility and stretch-flangeability and manufacturing method thereof | Hiroyuki Kawata, Naoki Maruyama, Akinobu Murasato, Naoki Yoshinaga, Noriyuki Suzuki | 2015-09-22 |
| 8951366 | High-strength cold-rolled steel sheet and method of manufacturing thereof | Kohichi Sano, Hiroyuki Kawata, Riki Okamoto, Naoki Yoshinaga, Kaoru Kawasaki +2 more | 2015-02-10 |