Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5072434 | Recording medium transducing light spot moving velocity detection circuit | Gohji Uchikoshi | 1991-12-10 |
| 5038334 | Optical spot position detection device for an optical disk apparatus | Gohji Uchikoshi | 1991-08-06 |