Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5669047 | Charging member, electrophotographic apparatus and charging method using the same | Masami Okuda, Hisami Tanaka, Junichi Kishi, Hiroyuki Ohmori, Takashi Koyama | 1997-09-16 |
| 5112708 | Member for charging with surface layer of N-alkoxymethylated nylon effecting charging at lower voltage | Masami Okunuki, Hisami Tanaka, Hiroyuki Ohmori | 1992-05-12 |
| 4948690 | Electrophotographic photosensitive member with fine spherical resin powder | Naoto Fujimura, Hisami Tanaka | 1990-08-14 |
| 4943819 | Image holding member and image forming device | Hitoshi Toma, Shigemori Tanaka | 1990-07-24 |
| 4932860 | Electrophotographic photosensitive member | Toshiyuki Yoshihara, Masaaki Hiro, Yoichi Kawamorita, Masaru Nakagawa, Fumio Sumino +2 more | 1990-06-12 |
| 4877701 | Photosensitive member for electrophotography | Masaaki Hiro, Tomohiro Kimura, Hisami Tanaka, Noboru Kashimura, Shigemori Tanaka +1 more | 1989-10-31 |
| 4766048 | Electrophotographic photosensitive member having surface layer containing fine spherical resin powder and apparatus utilizing the same | — | 1988-08-23 |
| 4617245 | Light receiving member having tapered reflective surfaces between substrate and light receiving layer | Shigemori Tanaka, Fumio Sumino, Keiji Kubo, Hitoshi Toma, Naoto Fujimura | 1986-10-14 |