Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12360468 | Polyarylate resin and electrophotographic photosensitive member | Jun Azuma, Kenji KITAGUCHI | 2025-07-15 |
| 12339618 | Polyarylate resin and electrophotographic photosensitive member | Jun Azuma, Kenji KITAGUCHI | 2025-06-24 |
| 10732526 | Electrophotographic photosensitive member, process cartridge, and image forming apparatus | Tomofumi SHIMIZU, Jun Azuma | 2020-08-04 |
| 10649351 | Electrophotographic photosensitive member, process cartridge, and image forming apparatus | Tomofumi SHIMIZU, Jun Azuma | 2020-05-12 |
| 10295918 | Electrophotographic photosensitive member, process cartridge, and image forming apparatus | Tomofumi SHIMIZU, Jun Azuma | 2019-05-21 |
| 10241428 | Electrophotographic photosensitive member, process cartridge, and image forming apparatus | Tomofumi SHIMIZU | 2019-03-26 |
| 10191397 | Electrophotographic photosensitive member, process cartridge, and image forming apparatus | Tomofumi SHIMIZU, Jun Azuma | 2019-01-29 |
| 9829811 | Electrophotographic photosensitive member, process cartridge, and image forming apparatus | Jun Azuma, Takahiro Oki | 2017-11-28 |
| 9448496 | Electrophotographic photosensitive member | Jun Azuma, Kensuke Okawa, Akihiko Ogata | 2016-09-20 |
| 9436104 | Electrophotographic photosensitive member and image forming apparatus | Jun Azuma, Kensuke Okawa, Akihiko Ogata | 2016-09-06 |
| 9256144 | Electrophotographic photosensitive member and image forming apparatus | Hideki Okada | 2016-02-09 |
| 9141007 | Monolayer type photoconductor and image forming device | Kazunari Hamasaki, Yuko Iwashita, Daisuke Kuboshima, Shiho Kuboshima | 2015-09-22 |
| 9023564 | Azoquinone compound, electrophotographic photoconductor, and image forming apparatus | Hideki Okada | 2015-05-05 |
| 8765337 | Multilayer type electrophotographic photoconductor and image forming apparatus | Junichiro Otsubo, Jun Azuma | 2014-07-01 |
| 8686133 | Oxo-titanylphthalocyanine crystal, method for producing the same and electrophotographic photoreceptor | Daisuke Kuboshima, Jun Azuma, Yoshio Inagaki, Junichiro Otsubo | 2014-04-01 |
| 8679710 | Electrophotographic photoreceptor and image forming apparatus | Daisuke Kuboshima, Eiichi Miyamoto, Kazunari Hamasaki, Norio Nakai, Yoshio Inagaki +2 more | 2014-03-25 |
| 8242261 | Oxo-titanylphthalocyanine crystal, method for producing the same, and electrophotographic photoreceptor | Daisuke Kuboshima, Jun Azuma, Yoshio Inagaki, Junichiro Otsubo | 2012-08-14 |
| 7700251 | Electrophotographic photoconductor and image-forming apparatus | Norio Nakai, Kazunari Hamasaki, Daisuke Kuboshima, Yoshio Inagaki, Hideki Okada +1 more | 2010-04-20 |