Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6789292 | Hinge assembly | Katsuya Imai | 2004-09-14 |
| 6772481 | Hinge assembly | Shinichiro Koshikawa, Katsuya Imai | 2004-08-10 |
| 6705677 | Chair with seatback and rotating damper device | Hiroyuki Masuda | 2004-03-16 |