Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6975569 | Optical disk apparatus capable of generating clock accurately | Koichi Tada, Hiroshi Watanabe | 2005-12-13 |
| 6920100 | Optical disk apparatus permitting high-precision Viterbi decoding | Hiroshi Watanabe | 2005-07-19 |