Issued Patents All Time
Showing 51–53 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876574 | Developing apparatus | Hatsuo Tajima, Hiroshi Tajika | 1989-10-24 |
| 4757196 | Optical encoder and method for producing same | Koichi Yamada | 1988-07-12 |
| 4346471 | Optical apparatus for tracking a record carrier | Kazuo Hirasawa | 1982-08-24 |