Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5283146 | Photoconductive phthalocyanine composition | Toyoshi Ohashi, Toshiaki Ishibashi, Akira Itsubo, Toshiyuki Koyama, Masatomi Ozawa +1 more | 1994-02-01 |
| 4981767 | Photoconductive mixed crystals of phthalocyanine compounds and process for producing the same | Yoshinori Tokura, Shinichi Suzuki, Hideo Toda, Akira Itsubo, Tomoko Sasaki | 1991-01-01 |