Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5338646 | Optical memory device having an improved light reflection or optical memory layer | Junichiro Nakayama, Tomoyuki Miyake, Hiroyuki Katayama, Kenji Ohta | 1994-08-16 |
| 5335220 | Optical recording element and driving system | Kenji Ohta, Tetsuya Inui, Hiroyuki Katayama, Akira Takahashi, Junji Hirokane +2 more | 1994-08-02 |
| 5305254 | Magneto-optic memory device | Yoshiteru Murakami, Junichiro Nakayama, Ichiro Hiramatsu, Akira Takahashi, Kenji Ohta +1 more | 1994-04-19 |