Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4905045 | Image forming device using polarized light | Hiromu Sasaki | 1990-02-27 |
| 4881102 | Copier with variable magnification ratio | Masaru Nishijima | 1989-11-14 |
| 4873811 | Shredder | Masayoshi Izumitani | 1989-10-17 |