Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5024911 | Electrophotographic photoreceptor having an electric charge generating layer comprising a pyrylium compound | Yutaka Akasaki, Hidekazu Aonuma, Katsumi Nukada, Hidemi Suto, Katsuhiro Sato +1 more | 1991-06-18 |
| 4889924 | Bisazo compounds | Yutaka Akasaki, Kaoru Torikoshi, Akira Imai, Touru Ishii | 1989-12-26 |
| 4822704 | Electrophotographic photoreceptor having a bisazo compound | Yutaka Akasaki, Kaoru Torikoshi, Akira Imai, Touru Ishii | 1989-04-18 |
| 4820600 | Electrophotographic photoreceptor having a bisazo compound | Yutaka Akasaki, Kaoru Torikoshi, Akira Imai, Touru Ishii | 1989-04-11 |