Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6736450 | Collapsible chair | — | 2004-05-18 |
| 6367823 | Walking aid | — | 2002-04-09 |
| 4581326 | Silver halide color photographic material | Katsunori Katoh, Satoshi Kawakatsu, Kosaku Masuda, Noritaka Nakayama, Toshihiko Kimura | 1986-04-08 |
| 4562146 | Silver halide color photographic material | Kosaku Masuda, Katsunori Katoh, Noritaka Nakayama, Toshihiko Kimura, Satoshi Kawakatsu | 1985-12-31 |