Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5124967 | Automatic gain control method and apparatus in optical disk system | Kazuo Isaka, Kazuo Shigematsu, Masahiro Takasago, Takuya Mizokami | 1992-06-23 |
| 4872153 | Detecting light spot movement direction for an optical disk | Hiromi Seo | 1989-10-03 |
| 4730290 | Defect detecting optical apparatus enabling recording in an alternate sector or track | Masahiro Takasago | 1988-03-08 |
| 4726004 | Optical information recording and reproducing apparatus with tracking servo system | Masahiro Takasago | 1988-02-16 |