Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6067285 | Optical disc | Kenji Ohta, Toshikazu Nagaura, Masayasu Futagawa, Shinji Yamagami, Yoshiteru Murakami +3 more | 2000-05-23 |
| 5490131 | Optical disk | Kenji Ohta, Toshikazu Nagaura, Masayasu Futagawa, Shinji Yamagami, Yoshiteru Murakami +3 more | 1996-02-06 |
| 5053252 | Method and apparatus for manufacturing optical memory devices | Kazuhiro Kimura, Hiroyuki Katayama, Junichiro Nakayama, Kenji Ohta | 1991-10-01 |