Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12276005 | Steel shaft component | Kison NISHIHARA, Yoko Sueyasu | 2025-04-15 |
| 11827963 | Roughly-shaped steel material for nitrided part, and nitrided part | Masato YUYA, Kison NISHIHARA, Satoru Okawa | 2023-11-28 |
| 11261511 | Hot forged steel material | Yoko Sueyasu, Ken-ichiro Yoshino, Kison NISHIHARA | 2022-03-01 |
| 10975452 | Hot forged product | Kison NISHIHARA, Yoshiyuki KASHIWARA | 2021-04-13 |
| 9731341 | Forged crankshaft and method for manufacturing the forged crankshaft | Kisung Kim, Junichi Okubo | 2017-08-15 |
| 9239075 | Forged crankshaft | Kisung Kim, Taketo MAEJIMA | 2016-01-19 |
| 9234265 | Steel for induction hardening and crankshaft manufactured using the same | Yuta Mizobe, Ken-ichiro Yoshino | 2016-01-12 |
| 6838048 | Steel for machine structural use and method of producing same | Takayuki Nishi, Hitoshi Matsumoto, Toru Kato, Koji Watari, Naoki Matsui | 2005-01-04 |
| 6797231 | Steel for machine structural use | Naoki Matsui, Koji Watari, Takayuki Nishi, Toru Kato, Hitoshi Matsumoto | 2004-09-28 |