Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4359514 | Photoconductive member having barrier and depletion layers | Isamu Shimizu, Shigeru Shirai | 1982-11-16 |
| 4340658 | Laminated ZnO photosensitive material | Isamu Shimizu | 1982-07-20 |