Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4997728 | Structure for incorporating fuel cell | Masahiro Watanabe | 1991-03-05 |
| 4663957 | Roll stand for a cold forming apparatus | Masami Ishii, Hitoshi Sugimoto, Mitsuhiro Ozawa | 1987-05-12 |
| 4578978 | Roll forming apparatus | Masami Ishii, Hitoshi Sugimoto, Mitsuhiro Ozawa | 1986-04-01 |
| 4568015 | Method of forming electric welded steel tube | Takaaki Toyooka, Eiichi Yokoyama, Akio Ejima | 1986-02-04 |