Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6488787 | Cold workable steel bar or wire and process | Tatsuro Ochi, Manabu Kubota, Koji Adachi, Ryuichi Seki | 2002-12-03 |
| 6475306 | Hot rolled steel wire rod or bar for machine structural use and method for producing the same | Tatsuro Ochi, Manabu Kubota, Koji Tanabe, Kiichiro Tsuchida | 2002-11-05 |
| 6419761 | Steels for cold forging and process for producing the same | Masayuki Hashimura, Makoto Okonogi | 2002-07-16 |
| 6383311 | High strength drive shaft and process for producing the same | Tatsuro Ochi, Kenichiro Naito, Joji Tamura, Masayoshi Saga | 2002-05-07 |