Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5023412 | Horn switch on steering wheel | — | 1991-06-11 |
| 4893521 | Steering wheel | Shinichi Goto, Kimio Muramatsu | 1990-01-16 |
| 4790209 | Impact energy absorbing steering wheel | — | 1988-12-13 |
| 4753129 | Steering wheel core metal | Kenichi Sawada | 1988-06-28 |