Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5963524 | Optical disk apparatus | Kazunori Tokiwa, Hirokazu Iida | 1999-10-05 |
| 5615185 | Optical disk recording and reproducing apparatus with data recorded and reproducing apparatus with data recorded on wobbled grooves and lands | — | 1997-03-25 |
| 5537373 | Optical disk recording and reproducing apparatus with data recorded on wobbled grooves and lands | — | 1996-07-16 |
| 5237558 | Laser drive circuit for optical disk recording/reproducing | Kazunori Tokiwa, Masahiro Sato | 1993-08-17 |
| 5163035 | Constant linear velocity recording servo circuit for write-once type compact disk | — | 1992-11-10 |