Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5011029 | Coat lift hanger | Ken Tsuneki, Kazuyoshi Ohshima, Yojiro Nakayama, Tatsuya Hayakawa, Seiichiro Tamura | 1991-04-30 |
| 4938322 | Multi-disc damper using viscous fluid | Ken Tsuneki, Kazuyoshi Ohshima, Youjirou Nakayama, Tatsuya Hayakawa, Seiichiroh Tamura | 1990-07-03 |