Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8400900 | Lens, lens mounting method and optical pickup device | — | 2013-03-19 |
| 8395983 | Optical pickup apparatus | Keita Takanashi, Noriyuki Hiramatsu | 2013-03-12 |
| 8295147 | Optical pickup apparatus | Keita Takanashi, Noriyuki Hiramatsu | 2012-10-23 |