Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5331621 | Optical pickup apparatus and a hologram element used for same | Takahiro Miyake, Yoshio Yoshida, Katushiro Kubo, Tetsuo Ueyama | 1994-07-19 |
YK
Yukio Kubata
Overall (1994): #44,862 of 165,921Top 30%
1
Patents 1994