Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5321678 | Optical head carriage, tracking mechanism and displacement detecting mechanism | Suguru Takishima, Hiroshi Kanazawa, Isao Okuda | 1994-06-14 |
| 5257145 | Optical data recording and reproducing apparatus | Hiroshi Kanazawa, Isao Okuda, Suguru Takishima | 1993-10-26 |