Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5582459 | Chair having tiltable seat back | Hiroshi Iwabuchi, Shunichi Takamatsu, Masaru Nakaseko | 1996-12-10 |
| 5348372 | Tilting control assembly for chair | Shunichi Takamatsu, Hirozi Kubo, Hiroshi Iwabuchi | 1994-09-20 |
| 5224758 | Tilting control assembly for chair | Shunichi Takamatsu, Hirozi Kubo, Hiroshi Iwabuchi | 1993-07-06 |
| 5080318 | Tilting control assembly for chair | Shunichi Takamatsu, Hiroji Kubo, Hiroshi Iwabuchi | 1992-01-14 |