Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5016954 | Optical pickup and hologram therefor | Shuichi Onayama | 1991-05-21 |
| 4907847 | Optical pickup and hologram therefor | Shuichi Onayama | 1990-03-13 |
| 4649507 | Segmented transversal filter | Masao Inaba, Hiroshi Takahashi, Takahiko Hattori | 1987-03-10 |