Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9217716 | Method for testing charge generation layer and process for manufacturing electrophotographic photoreceptors on large scale | Wataru Kitamura, Ryoichi Tokimitsu, Mai Murakami | 2015-12-22 |
| 9091951 | Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Hideaki Nagasaka, Masato Tanaka | 2015-07-28 |
| 8993204 | Electrophotographic photosensitive member, method for producing the same, process cartridge, and electrophotographic apparatus | Masato Tanaka, Masataka Kawahara, Michiyo Sekiya, Akira Yoshida | 2015-03-31 |
| 8962227 | Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, method of producing electrophotographic photosensitive member, and urea compound | Masato Tanaka | 2015-02-24 |
| 8865382 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and process for producing electrophotographic photosensitive member | Masato Tanaka | 2014-10-21 |
| 8859172 | Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Hideaki Nagasaka, Masato Tanaka | 2014-10-14 |
| 8859174 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Masato Tanaka | 2014-10-14 |
| 8783209 | Apparatus and process for producing electrophotographic phhotosensitive member | Kenichi Kaku, Yasuhiro Kawai | 2014-07-22 |
| 8735032 | Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Masato Tanaka | 2014-05-27 |
| 8557488 | Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Hideaki Nagasaka, Masato Tanaka | 2013-10-15 |
| 8415078 | Electrophotographic photosensitive member, process electrophotographic apparatus | Masato Tanaka | 2013-04-09 |
| 8088541 | Polyvinyl acetal resin, electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Masato Tanaka, Atsushi Fujii, Yuka Ishiduka, Masataka Kawahara | 2012-01-03 |
| 7910274 | Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Masato Tanaka, Takehiko Endo, Atsushi Fujii, Kenichi Kaku, Yuka Ishiduka | 2011-03-22 |
| 7333752 | Electrophotographic photosensitive member, and process cartridge and electrophotographic apparatus which have the electrophotographic photosensitive member | Masataka Kawahara, Masato Tanaka, Atsushi Fujii, Yuka Ishizuka | 2008-02-19 |