Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4922462 | Reversible memory structure for optical reading and writing and which is capable of erasure | Sumio Ikegawa, Yoshiaki Terashima, Nobuaki Yasuda, Katsutarou Ichihara, Shuichi Komatsu | 1990-05-01 |
| 4855992 | Reversible optical recording medium with an optothermally deformable recording layer | Sumio Ikegawa, Akio Hori, Shuichi Komatsu, Nobuaki Yasuda | 1989-08-08 |
| 4839861 | Information recording medium rewritable by utilizing two metastable phases of a recording layer and method using the same | Sumio Ikegawa, Shuichi Komatsu, Sumio Ashida, Nobuaki Yasuda | 1989-06-13 |
| D279571 | Industrial robot | Yoshio Sanada, Takanobu Fujimoto | 1985-07-09 |