Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5824385 | Optical disc and method for manufacturing the same | Shinichi Hanzawa, Yoshitaka Nonaka, Junichi Watanabe, Haruhisa Maruyama | 1998-10-20 |
| 5759332 | Process of reproducing optical discs and optical discs produced by the same | Mitsuhiko Sasano, Shinichi Hanzawa, Masaaki Motokawa, Yoshikazu Hirai, Haruhisa Maruyama | 1998-06-02 |