Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8238584 | Voice signal transmitting/receiving apparatus | Kosuke Saito, Katsuichi Osakabe, Toshiaki Ishibashi, Yuichiro Suenaga, Chikara Kobayashi | 2012-08-07 |
| 6980495 | Optical recording apparatus with interleaving blank rounds into spiral track | Katsuichi Osakabe, Akira Usui, Hiromitsu Shibata, Masaki Dojun | 2005-12-27 |
| 5663941 | Optical disk recording device with laser power control capable of recording at various recording speeds | — | 1997-09-02 |
| 5598384 | Feed search system for optical disk recording device | Morito Morishima | 1997-01-28 |
| 4694441 | Position control device for an optical reproduction system in an optical type disc reproduction device | Norio Tomisawa, Shingo Kamiya | 1987-09-15 |
| 4594703 | Clock-signal reproducing circuit including voltage controlled oscillator | Norio Tomisawa | 1986-06-10 |