Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6416915 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Toshihiro Kikuchi, Akio Maruyama | 2002-07-09 |
| 6372397 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Akio Maruyama, Toshihiro Kikuchi, Shoji Amamiya, Michiyo Sekiya | 2002-04-16 |
| 6180303 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and process for producing the same photosensitive member | Akio Maruyama, Toshihiro Kikuchi | 2001-01-30 |
| 6110628 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Michiyo Sekiya, Hideki Anayama, Akio Maruyama, Shoji Amamiya, Hiroyuki Tanaka | 2000-08-29 |