Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4897829 | Cardlike optical recording medium | Keiko Ikoma, Noriko Kurihara, Susumu Itoh | 1990-01-30 |
| 4892800 | Photosensitive member having a photoconductive layer comprising a carbonic film for use in electrophotography | Masao Sugata, Tatsuo Takeuchi, Hiroshi Satomura, Yoshihiro Oguchi, Akio Maruyama +6 more | 1990-01-09 |