Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4987566 | Optical head apparatus | Shinsuke Shikama, Eiichi Toide, Kazuo Iwata | 1991-01-22 |
| 4888760 | Optical head apparatus | Shinsuke Shikama, Eiichi Toide, Kazuo Iwata | 1989-12-19 |
| 4859033 | Method of producing optical head assembly | Keizo Kono, Natsuro Tsubouchi, Shiro Hine, Hiroshi Nishihara, Toshiaki Suhara | 1989-08-22 |
| 4779259 | Optical head assembly with efficient light source coupling surface and method of construction | Keizo Kono, Natsuro Tsubouchi, Shiro Hine, Hiroshi Nishihara, Toshiaki Suhara | 1988-10-18 |
| 4730899 | Optical signal reading device | Kenjiro Kime, Kazuo Okada | 1988-03-15 |
| 4625303 | Automatic focusing device | Shinsuke Shikama, Nobumasa Egashira, Kazuo Okada | 1986-11-25 |