Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6600712 | Optical information recording method and apparatus | Kenya Yokoi | 2003-07-29 |
| 6556523 | Wobble-signal detecting device and information recording apparatus | — | 2003-04-29 |
| 6118798 | Semiconductor laser control system | Hidetoshi Ema, Masaaki Ishida | 2000-09-12 |
| 5946334 | Semiconductor laser control system | Hidetoshi Ema, Masaaki Ishida | 1999-08-31 |