Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6347069 | Optical pickup device and production method of optical pickup device components | Masanao Wakikawa, Toru Tanaka, Kiyoshi Ishioka | 2002-02-12 |
| 6335914 | Optical disc device | Toru Tanaka, Yuji Ariyoshi, Masanao Wakikawa, Kiyoshi Ishioka | 2002-01-01 |