Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7522509 | Semiconductor laser driving device and optical disc device | Takashi Miyamoto, Tomohisa Inaba | 2009-04-21 |
| 7298680 | Optical disc apparatus | Keishi Ueno | 2007-11-20 |
| 7233552 | Optical disk device capable of recording information data according to ZCLV format | — | 2007-06-19 |
| 6922381 | Optical disk apparatus | — | 2005-07-26 |
| 5563860 | Optical disk drive | Mitumasa Kubo | 1996-10-08 |
| 5477512 | Detection apparatus for detecting sector marks of optical disk and optical disk access apparatus | Mitumasa Kubo | 1995-12-19 |
| 5432762 | Detection apparatus for detecting sector marks of optical disk and optical disk access apparatus | Mitumasa Kubo | 1995-07-11 |