Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9141007 | Monolayer type photoconductor and image forming device | Kazunari Hamasaki, Yuko Iwashita, Keiji Maruo, Shiho Kuboshima | 2015-09-22 |
| 8686133 | Oxo-titanylphthalocyanine crystal, method for producing the same and electrophotographic photoreceptor | Jun Azuma, Yoshio Inagaki, Junichiro Otsubo, Keiji Maruo | 2014-04-01 |
| 8679710 | Electrophotographic photoreceptor and image forming apparatus | Eiichi Miyamoto, Kazunari Hamasaki, Norio Nakai, Yoshio Inagaki, Hideki Okada +2 more | 2014-03-25 |
| 8242261 | Oxo-titanylphthalocyanine crystal, method for producing the same, and electrophotographic photoreceptor | Jun Azuma, Yoshio Inagaki, Junichiro Otsubo, Keiji Maruo | 2012-08-14 |
| 7838191 | Electrophotographic photoconductor having titanyl phthalocyanine and image forming apparatus | Kazunari Hamasaki, Yuko Iwashita | 2010-11-23 |
| 7754402 | Electrophotographic photoconductive member and image forming apparatus | Kazunari Hamasaki, Shiho Kuboshima, Yuko Iwashita | 2010-07-13 |
| 7700251 | Electrophotographic photoconductor and image-forming apparatus | Norio Nakai, Kazunari Hamasaki, Yoshio Inagaki, Hideki Okada, Tetsuya Ichiguchi +1 more | 2010-04-20 |
| 7416825 | Single layer type electrophotographic photoconductor and image forming device | Kazunari Hamasaki, Norio Nakai | 2008-08-26 |
| 7101647 | Electrophotosensitive material | Jun Azuma, Kazunari Hamasaki, Hisakazu Honma | 2006-09-05 |
| 7057034 | Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive material | Kazunari Hamasaki, Hisakazu Honma, Jun Azuma, Eiichi Miyamoto | 2006-06-06 |
| 6653034 | Stilbeneamine derivative and electrophotosensitive material using the same | Yoshio Inagaki | 2003-11-25 |
| 6528645 | Titanyl phthalocyanine crystal and production method of the same, and electrophotosensitive material and production method of the same | Kazunari Hamasaki, Yukimasa Watanabe, Hirofumi Kawaguchi, Mitsuo Ihara, Susumu Hiroshima | 2003-03-04 |
| 6444385 | Electrophotosensitive material and method of producing the same | Jun Azuma, Mitsuo Ihara, Maki Uchida, Yukikatsu Imanaka, Hiromi Nakatsu +1 more | 2002-09-03 |