Issued Patents All Time
Showing 26–50 of 147 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8900783 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Wataru Yamada, Hidekazu Hirose, Yuko IWADATE, Kenji Kajiwara | 2014-12-02 |
| 8883381 | Image forming apparatus, and processing cartridge | Wataru Yamada, Tsuyoshi Miyamoto, Kenya Sonobe, Takatsugu Doi | 2014-11-11 |
| 8859173 | Electrophotographic photoreceptor, process cartridge, image forming apparatus, cured film, and organic electroluminescent device | Wataru Yamada, Takatsugu Doi, Tsuyoshi Miyamoto, Kenya Sonobe | 2014-10-14 |
| 8846280 | Compound, charge transporting film, photoelectric conversion device, electrophotographic photoreceptor, process cartridge, and image forming apparatus | Wataru Yamada, Yuko IWADATE, Tomoya Sasaki, Kenji Kajiwara | 2014-09-30 |
| 8815480 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Kenya Sonobe, Wataru Yamada, Takatsugu Doi, Tsuyoshi Miyamoto | 2014-08-26 |
| 8808952 | Composition for forming charge transporting film, electrophotographic photoreceptor, process cartridge, and image forming apparatus | Yuko IWADATE, Wataru Yamada, Hidekazu Hirose, Tomoya Sasaki, Kenji Kajiwara | 2014-08-19 |
| 8795933 | Electrophotographic photoconductor, method for preparing the same, process cartridge, and image forming apparatus | Takatsugu Doi, Wataru Yamada, Yuko IWADATE | 2014-08-05 |
| 8748070 | Thiol group-containing charge transporting material, thiol group-containing charge transporting material-dissolving solution, photoelectric conversion device, electrophotographic photoreceptor, image forming apparatus, and process cartridge | Kenya Sonobe, Wataru Yamada, Takatsugu Doi, Tsuyoshi Miyamoto, Yuko IWADATE | 2014-06-10 |
| 8679709 | Electrophotographic photoreceptor, process cartridge, image forming apparatus, and film forming coating solution | Wataru Yamada, Masahiro Iwasaki, Kazuhiro Koseki | 2014-03-25 |
| 8673526 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Kenya Sonobe, Wataru Yamada, Takatsugu Doi, Tsuyoshi Miyamoto, Yuko IWADATE | 2014-03-18 |
| 8669029 | Reactive compound, charge transporting film, photoelectric conversion device, electrophotographic photoreceptor and method of producing the same, process cartridge, and image forming apparatus | Tomoya Sasaki, Wataru Yamada, Takatsugu Doi, Yuko IWADATE, Kenji Kajiwara | 2014-03-11 |
| 8663883 | Charge-transporting film, photoelectric conversion device, electrophotographic photoreceptor, process cartridge, and image forming apparatus | Wataru Yamada, Takatsugu Doi, Yuko IWADATE, Tomoya Sasaki | 2014-03-04 |
| 8655220 | Electrophotographic photoreceptor, process cartridge and image forming apparatus | Masahiro Iwasaki, Wataru Yamada, Kenta IDE, Hirofumi Nakamura, Mitsuhide Nakamura +4 more | 2014-02-18 |
| 8609311 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Wataru Yamada, Takatsugu Doi | 2013-12-17 |
| 8609310 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Hitoshi Takimoto, Akira Hirano, Takatsugu Doi, Wataru Yamada | 2013-12-17 |
| 8524433 | Electrophotographic photoconductor, process cartridge, and image forming apparatus | Takatsugu Doi, Wataru Yamada, Yuko IWADATE | 2013-09-03 |
| 8518619 | Photoelectric conversion device, electrophotographic photoreceptor, process cartridge, and image forming apparatus | Wataru Yamada, Takatsugu Doi | 2013-08-27 |
| 8518617 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Tsuyoshi Miyamoto, Wataru Yamada, Takatsugu Doi, Kenya Sonobe | 2013-08-27 |
| 8475982 | Charge-transporting compound, electrophotographic photoreceptor, image-forming apparatus, and process cartridge | Masahiro Iwasaki, Wataru Yamada, Kenji Yao | 2013-07-02 |
| 8426093 | Electrophotographic photoreceptor, process cartridge and image-forming apparatus | Wataru Yamada, Masahiro Iwasaki, Kazuhiro Koseki | 2013-04-23 |
| 8373160 | Electrophotographic photoreceptor, process cartridge image forming apparatus, and cured film | Wataru Yamada, Tsuyoshi Miyamoto, Kenya Sonobe, Takatsugu Doi | 2013-02-12 |
| 8309286 | Electrophotographic photoreceptor, process cartridge, and image forming apparatus | Wataru Yamada, Takatsugu Doi, Akira Hirano, Hitoshi Takimoto | 2012-11-13 |
| 8283096 | Electrophotographic photoreceptor, process cartridge and image forming apparatus | Wataru Yamada, Masahiro Iwasaki, Akira Hirano, Takatsugu Doi | 2012-10-09 |
| 8273510 | Electrophotographic photoreceptor, process cartridge and image forming apparatus | Wataru Yamada, Tsuyoshi Miyamoto, Kenya Sonobe, Takatsugu Doi | 2012-09-25 |
| 8273511 | Electrophotographic photoreceptor, manufacturing method of electrophotographic photoreceptor, processing cartridge, and image forming apparatus | Wataru Yamada, Takatsugu Doi, Hitoshi Takimoto, Akira Hirano | 2012-09-25 |