Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4816840 | Optical recording medium and method for producing the same | Ichiro Saito, Yoshio Takasu | 1989-03-28 |
| 4795688 | Layered photoconductive member comprising amorphous silicon | Teruo Misumi, Kyosuke Ogawa, Junichiro Kanbe, Keishi Saitoh, Shigeru Shirai | 1989-01-03 |