Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9507282 | Electrophotographic photoreceptor and image forming apparatus provided with the same | Akiko Kihara, Masaki Hashimoto, Koichi Toriyama, Takahiro Kurauchi, Rikiya Matsuo +2 more | 2016-11-29 |
| 9316933 | Electrophotographic photoreceptor and image forming apparatus including the same | Kimiko Kumazawa, Koichi Toriyama, Takahiro Kurauchi, Tomoko Kanazawa, Chikako Iibachi +1 more | 2016-04-19 |
| 8911922 | Electrophotographic photoreceptor, coating liquid for undercoat layer of electrophotographic photoreceptor, and method for producing the same | Satoshi Katayama, Kohichi Toriyama, Mami Adachi, Junichi Washo | 2014-12-16 |
| 8535860 | Electrophotographic photoreceptor, coating liquid for undercoat layer of electrophotographic photoreceptor, and method for producing the same | Satoshi Katayama, Kohichi Toriyama, Mami Adachi, Junichi Washo | 2013-09-17 |
| 8367287 | Electrophotographic photoconductor, method of producing the same and image forming apparatus | Hiroshi Sugimura, Koichi Toriyama | 2013-02-05 |
| 8354211 | Electrophotographic photoreceptor, image forming apparatus and process cartridge | Akiko Kihara, Takatsugu Obata, Akihiro Kondoh | 2013-01-15 |
| 8340551 | Image forming apparatus having a photoconductor containing titanylphthalocyanine | Takayuki Yamanaka, Koichi Toriyama, Masanori Matsumoto | 2012-12-25 |
| 8076047 | Electrophotographic photoreceptor and image formation device provided with the same | Kohichi Toriyama | 2011-12-13 |
| 8076046 | Electrophotographic photoreceptor and image formation device provided with the same | Takahiro Kurauchi, Akihiro Kondoh | 2011-12-13 |
| 7693453 | Image forming apparatus equipped with an electrographic photoreceptor having a surface with low surface free energy | Mikio Kakui, Koichi Toriyama, Hisayuki Utsumi, Sayaka Fujita, Akiko Uchino +1 more | 2010-04-06 |
| 7638248 | Electrophotographic photoconductor | Hisayuki Utsumi, Tomoko Kanazawa, Katsuya Takano | 2009-12-29 |
| 7625682 | Electrophotographic photoreceptor and image forming apparatus | Tomoko Kanazawa | 2009-12-01 |
| 7588871 | Electrophotographic photoreceptor and image forming apparatus provided with the same | Akiko Kihara, Takatsugu Obata | 2009-09-15 |
| 7429439 | Electrophotographic photoreceptor and image forming apparatus provided with the same | Koichi Toriyama, Takatsugu Obata, Takuya Arimura | 2008-09-30 |
| 7387862 | Electrophotographic photoreceptor and image forming apparatus providing the same | Koichi Toriyama, Hisayuki Utsumi | 2008-06-17 |
| 7302210 | Electrophotographic photoreceptor and image forming apparatus having the same | Hisayuki Utsumi, Yohichi Takesawa, Shinya Mimura, Tatsuhiro Morita, Katsuya Takano | 2007-11-27 |
| 7074531 | Electrophotographic photoreceptor | Mikio Kakui, Koichi Toriyama, Hisayuki Utsumi | 2006-07-11 |