Issued Patents All Time
Showing 26–50 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9341965 | Electrophotographic photosensitive member, method for manufacturing the same, electrophotographic apparatus, process cartridge, and hydroxygallium phthalocyanine crystal | Tsutomu Nishida, Masato Tanaka | 2016-05-17 |
| 9298115 | Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Junpei Kuno, Takeshi Murakami, Tsutomu Nishida, Kaname Watariguchi | 2016-03-29 |
| 9104098 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Tsutomu Nishida, Junpei Kuno, Kaname Watariguchi, Masato Tanaka | 2015-08-11 |
| 9086640 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Tsutomu Nishida, Junpei Kuno, Kaname Watariguchi, Masato Tanaka | 2015-07-21 |
| 9068083 | Method of producing gallium phthalocyanine crystal and method of producing electrophotographic photosensitive member using the method of producing gallium phthalocyanine crystal | Masato Tanaka, Kaname Watariguchi, Takeshi Murakami, Akira Yoshida | 2015-06-30 |
| 9057969 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Tsutomu Nishida, Masato Tanaka | 2015-06-16 |
| 9040218 | Solution of gallium phthalocyanine method for preparing the same method for producing gallium phthalocyanine crystal method for purifying composition containing gallium phthalocyanine and method for producing electrophotographic photosensitive member | Tsutomu Nishida, Masato Tanaka | 2015-05-26 |
| 8993204 | Electrophotographic photosensitive member, method for producing the same, process cartridge, and electrophotographic apparatus | Masaki Nonaka, Masato Tanaka, Michiyo Sekiya, Akira Yoshida | 2015-03-31 |
| 8974991 | Electrophotographic photosensitive member, method of producing phthalocyanine crystal, method of producing electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and phthalocyanine crystal | Masato Tanaka, Kaname Watariguchi, Takeshi Murakami, Akira Yoshida | 2015-03-10 |
| 8841052 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Kaname Watariguchi, Takeshi Murakami, Masato Tanaka, Akira Yoshida | 2014-09-23 |
| 8703372 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Takeshi Murakami, Kaname Watariguchi, Masato Tanaka, Akira Yoshida | 2014-04-22 |
| 8088541 | Polyvinyl acetal resin, electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Masato Tanaka, Atsushi Fujii, Yuka Ishiduka, Masaki Nonaka | 2012-01-03 |
| 7749667 | Image forming method, and electrophotographic apparatus making use of the image forming method | Hiroki Uematsu, Akio Maruyama, Harunobu Ogaki, Atsushi Ochi, Akira Shimada +4 more | 2010-07-06 |
| 7718331 | Electrophotographic photosensitive member with depressed portions, process cartridge holding the electrophotographic photosensitive member and electrophotographic apparatus with the electrophotographic photosensitive member | Hiroki Uematsu, Harunobu Ogaki, Atsushi Ochi, Akira Shimada, Akio Maruyama +4 more | 2010-05-18 |
| 7629102 | Method for preparing electrophotographic photosensitive member | Atsushi Ochi, Harunobu Ogaki, Kazunori Noguchi, Hiroki Uematsu | 2009-12-08 |
| 7622238 | Process for producing electrophotographic photosensitive member | Hiroki Uematsu, Akira Shimada, Harunobu Ogaki, Atsushi Ochi, Akio Maruyama +4 more | 2009-11-24 |
| 7556901 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Takashi Anezaki, Harunobu Ogaki, Hiroki Uematsu, Atsushi Ochi, Kyoichi Teramoto +6 more | 2009-07-07 |
| 7551878 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Harunobu Ogaki, Hiroki Uematsu, Atsushi Ochi, Kyoichi Teramoto, Akira Shimada +4 more | 2009-06-23 |
| 7452644 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Masato Tanaka, Atsushi Fujii, Yuka Ishizuka | 2008-11-18 |
| 7333752 | Electrophotographic photosensitive member, and process cartridge and electrophotographic apparatus which have the electrophotographic photosensitive member | Masato Tanaka, Atsushi Fujii, Yuka Ishizuka, Masaki Nonaka | 2008-02-19 |
| 7160659 | Electrophotographic apparatus and process cartridge | Hirotoshi Uesugi, Akira Yoshida, Kazushige Nakamura | 2007-01-09 |
| 7097950 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Masato Tanaka, Atsushi Fujii, Yuka Ishizuka | 2006-08-29 |
| 6623899 | Electrophotographic photosensitive member, process for production thereof, process cartridge and electrophotographic apparatus | Itaru Takaya | 2003-09-23 |
| 6558861 | Transfer sheet and image-forming method | Nobuyuki Ito | 2003-05-06 |
| 6551752 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Itaru Takaya, Takeshi Ikeda | 2003-04-22 |