Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4715655 | Reclining angle adjustment device | Toshihito Miyagawa | 1987-12-29 |
| 4629250 | Reclining angle adjustment device | Takeshi Tezuka, Akira Owada | 1986-12-16 |
| 4538856 | Reclining angle adjustment device | Hideyuki Ohshiro, Masanori Sakai | 1985-09-03 |