Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6187493 | Electrophotosensitive material | Masato Katsukawa, Akiyoshi Urano, Ayako Sugase, Mitsuo Ihara, Ichiro Yamazato | 2001-02-13 |
| 5830615 | Naphthylenediamine derivative and electrophotosensitive material using the same | Eiichi Miyamoto, Mikio Kakui, Hideo Nakamori, Yukikatsu Imanaka, Tadashi Sakuma +4 more | 1998-11-03 |
| 5780194 | Electrophotosensitive material | Masato Katsukawa, Akiyoshi Urano, Ayako Sugase, Mitsuo Ihara, Ichiro Yamazato | 1998-07-14 |
| 5629117 | Electrophotosensitive material | Masato Katsukawa, Masashi Tanaka, Ichiro Yamazato | 1997-05-13 |