Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6338763 | Steel wire for high-strength springs and method of producing the same | Hiroshi Hagiwara, Takanari Miyaki, Hiroaki Hayashi, Shoichi Suzuki, Ikuo Ochiai | 2002-01-15 |
| 5897717 | High strength spring steel and process for producing same | Masato Yanase, Taisuke Nishimura, Takashi Otowa, Hiroshi Yarita, Ikuo Ochiai +2 more | 1999-04-27 |
| 5123934 | Ceramics coated cemented-carbide tool with high-fracture resistance | Sakae Katayama, Hiroto Imamura, Tetsuo Sawashima | 1992-06-23 |