Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7403397 | Switching power-supply module | Tadahiko Matsumoto, Yasuo Ohashi, Naoto Sano | 2008-07-22 |
| 5737292 | Optical data recording/reproducing device | Masaaki Sofue | 1998-04-07 |
| 5212673 | Compact optical disk drive unit | — | 1993-05-18 |
| 5175718 | Optical pickup apparatus having set positions of deflecting prism and objective lens | — | 1992-12-29 |
| 5144617 | Optical information read/write apparatus | Hiroshi Gotoh, Ikuo Maeda | 1992-09-01 |
| 5073888 | Optical pickup device | Yoshitaka Takahashi, Hiroshi Koide, Hiroshi Gotoh, Masami Emoto | 1991-12-17 |
| 5072436 | Optical device for recording and reproducing information | — | 1991-12-10 |
| 5050152 | Optical pickup device compensating for carriage/guide play or wobble | — | 1991-09-17 |