Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9645515 | Electrophotographic photosensitive member and manufacturing method thereof, process cartridge and electrophotographic apparatus, and phthalocyanine crystal and manufacturing method thereof | Tsutomu Nishida, Masato Tanaka, Masataka Kawahara, Kaname Watariguchi | 2017-05-09 |
| 9519232 | Electrophotographic photosensitive member, method for producing electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and hydroxygallium phthalocyanine crystal | Masataka Kawahara, Tsutomu Nishida, Masato Tanaka, Kaname Watariguchi | 2016-12-13 |
| 9436106 | Electrophotographic photosensitive member and manufacturing method therefor, process cartridge and electrophotographic apparatus including the electrophotographic photosensitive member, and phthalocyanine crystal and method producing therefor | Tsutomu Nishida, Masato Tanaka, Masataka Kawahara, Kaname Watariguchi | 2016-09-06 |
| 9298115 | Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Takeshi Murakami, Tsutomu Nishida, Masataka Kawahara, Kaname Watariguchi | 2016-03-29 |
| 9104098 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Tsutomu Nishida, Masataka Kawahara, Kaname Watariguchi, Masato Tanaka | 2015-08-11 |
| 9086640 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Tsutomu Nishida, Kaname Watariguchi, Masataka Kawahara, Masato Tanaka | 2015-07-21 |
| 7732113 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and process for producing electrophotographic photosensitive member | Kazushige Nakamura, Hidetoshi Hirano, Hirotoshi Uesugi, Hirofumi Kumoi, Shinji Takagi +2 more | 2010-06-08 |