Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4985719 | Apparatus for preventing static electricity of plastic lens | Ikuya Tsurukawa | 1991-01-15 |
| 4950061 | Drive device for a varifocal lens system | Ikuya Tsurukawa, Kunihisa Yamaguchi | 1990-08-21 |
| 4908648 | Distance measuring device for automatic focusing camera | Takashi Hongoh | 1990-03-13 |
| 4847648 | Varifocal camera | Kunihisa Yamaguchi, Kohichi Nishi, Ikuya Tsurukawa | 1989-07-11 |