Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7619959 | Optical head, optical recording medium recording and/or reproducing apparatus and recording and/or reproducing method using the optical head | Noriaki Nishi, Masaru Tezuka, Naoki Inoue | 2009-11-17 |
| 7177259 | Optical head and optical recording medium drive device | Noriaki Nishi, Masaru Tezuka | 2007-02-13 |
| 6980276 | Luminous source apparatus, image projecting apparatus and image projection converting apparatus | Tadashi Okano | 2005-12-27 |
| 6909489 | Luminous source apparatus, image projecting apparatus and image projection converting apparatus | Tadashi Okano | 2005-06-21 |
| 5757570 | Reel servo device for recording/reproducing apparatus employing a tape as recording medium | Hiroshi Kiriyama, Haruyuki Kouno | 1998-05-26 |