Issued Patents All Time
Showing 1–25 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11249407 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Kaname Watariguchi, Tomohito Ishida, Michiyo Sekiya, Kohei Makisumi | 2022-02-15 |
| 11237493 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Kohei Makisumi, Kaname Watariguchi, Tomohito Ishida, Michiyo Sekiya | 2022-02-01 |
| 11181837 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Michiyo Sekiya, Kaname Watariguchi, Tomohito Ishida, Kohei Makisumi | 2021-11-23 |
| 11126097 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Tomohito Ishida, Kaname Watariguchi, Michiyo Sekiya, Kohei Makisumi | 2021-09-21 |
| 10838313 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Kazuko Araki, Kaname Watariguchi, Jumpei Kuno | 2020-11-17 |
| 10429753 | Electrophotographic photoconductor, process cartridge, and electrophotographic apparatus | Kaname Watariguchi, Masato Tanaka, Jumpei Kuno | 2019-10-01 |
| 10401746 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Kaname Watariguchi, Shoma Hinata, Kazuko Araki, Tsutomu Nishida, Jumpei Kuno +2 more | 2019-09-03 |
| 10012915 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and chlorogallium phthalocyanine crystal and method for producing the same | Tsutomu Nishida, Masato Tanaka, Jumpei Kuno, Kaname Watariguchi, Hidetoshi Hirano | 2018-07-03 |
| 9921499 | Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and phthalocyanine pigment | Kaname Watariguchi, Shoma Hinata, Kazuko Sakuma, Tsutomu Nishida, Jumpei Kuno +4 more | 2018-03-20 |
| 9869032 | Manufacturing method of phthalocyanine crystal by milling crystal transformation for at least 1,000 hours | Masato Tanaka, Jumpei Kuno, Tsutomu Nishida, Kaname Watariguchi | 2018-01-16 |
| 9864284 | Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Hirotoshi Uesugi, Akihiro Maruyama, Hirofumi Kumoi, Masato Tanaka, Hiroyuki Tomono +6 more | 2018-01-09 |
| 9753385 | Electrophotographic photosensitive member, method for manufacturing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Yota Ito, Daisuke Miura, Shoma Hinata, Hiroyuki Tomono, Takashi Anezaki +6 more | 2017-09-05 |
| 9746790 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and chlorogallium phthalocyanine crystal and method for producing the same | Tsutomu Nishida, Masato Tanaka | 2017-08-29 |
| 9720337 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and chlorogallium phthalocyanine crystal and method for producing the same | Tsutomu Nishida, Masato Tanaka | 2017-08-01 |
| 9709907 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Kaname Watariguchi, Masato Tanaka, Jumpei Kuno, Tsutomu Nishida | 2017-07-18 |
| 9645516 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Masato Tanaka, Jumpei Kuno, Tsutomu Nishida, Kaname Watariguchi | 2017-05-09 |
| 9645515 | Electrophotographic photosensitive member and manufacturing method thereof, process cartridge and electrophotographic apparatus, and phthalocyanine crystal and manufacturing method thereof | Junpei Kuno, Tsutomu Nishida, Masato Tanaka, Kaname Watariguchi | 2017-05-09 |
| 9563139 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Masato Tanaka, Jumpei Kuno, Tsutomu Nishida, Kaname Watariguchi | 2017-02-07 |
| 9541850 | Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus | Tsutomu Nishida, Masato Tanaka | 2017-01-10 |
| 9535345 | 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 | 2017-01-03 |
| 9535347 | Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus | Kaname Watariguchi, Takeshi Murakami, Masato Tanaka, Akira Yoshida | 2017-01-03 |
| 9519232 | Electrophotographic photosensitive member, method for producing electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and hydroxygallium phthalocyanine crystal | Tsutomu Nishida, Junpei Kuno, Masato Tanaka, Kaname Watariguchi | 2016-12-13 |
| 9459545 | Electrophotographic photosensitive member, manufacturing method of electrophotographic photosensitive member, process cartridge and electrophotographic apparatus, and a solid solution and manufacturing method of a solid solution | Masato Tanaka, Tsutomu Nishida | 2016-10-04 |
| 9459542 | Electrophotographic photosensitive member, process cartridge, electrophotographic apparatus, and gallium phthalocyanine crystal | Masato Tanaka, Kaname Watariguchi, Takeshi Murakami, Akira Yoshida | 2016-10-04 |
| 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 | Junpei Kuno, Tsutomu Nishida, Masato Tanaka, Kaname Watariguchi | 2016-09-06 |