Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7575646 | Heat-treated steel wire for high strength spring | Masayuki Hashimura, Takanari Miyaki, Hiroshi Hagiwara, Hiroaki Hayashi, Shouich Suzuki +2 more | 2009-08-18 |
| 6016779 | Valve operating system in internal combustion engine | Hirotomi Nemoto, Shigekazu Tanaka, Shigemasa Kajiwara, Takeshi Gomi, Tetsuya Ishiguro | 2000-01-25 |
| 5845614 | Valve operating system in internal combustion engine | Shigekazu Tanaka, Shigemasa Kajiwara, Junji Yamano, Keiji Miura | 1998-12-08 |