Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864856 | Liquid level detecting device | Norikazu Soga, Hirofumi Ohnishi | 1989-09-12 |
| 4817023 | Slide magazine provided with memory means for slide film printing system | Kiyoshi Yamaguchi, Seiichi Yamazaki | 1989-03-28 |