Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7595472 | Optical head device | — | 2009-09-29 |
| 7545729 | Medium, apparatus, and method of recording optical-information | Shinichi Tatsuta, Yuji Kubota, Akiko Hirao, Kazuki Matsumoto | 2009-06-09 |
| D589067 | Vibratory roller | — | 2009-03-24 |
| 7477576 | Optical disk apparatus and method of tilt control | Minoru Yonezawa | 2009-01-13 |
| 7358471 | Optical head device | — | 2008-04-15 |
| 6418098 | Optical head apparatus for reproducing information from an optical recording medium | Masahiko Tanaka, Katsuo Iwata | 2002-07-09 |