Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10571821 | Electrophotographic image forming apparatus | Daisuke Kodama | 2020-02-25 |
| 10496014 | Electrophotographic image forming device | Daisuke Kodama | 2019-12-03 |
| 10386777 | Electrophotographic image forming device | Daisuke Kodama | 2019-08-20 |
| 9933714 | Electrophotographic photoreceptor and image-forming apparatus | Seijiro Takahashi, Hiroshi Nakahara | 2018-04-03 |
| 9910398 | Electrophotographic image forming apparatus containing organic photoreceptor, unit for supplying lubricant, and cleaning blade | Seijiro Takahashi, Hiroshi Nakahara, Hiroshige Kidera | 2018-03-06 |
| 9869942 | Imaging apparatus and process of forming image with electrophotographic photoreceptor having protective layer containing particulate P-type semiconductor | Toshiyuki Fujita, Kazuteru Ishizuka, Mari Ueda, Daisuke Kodama | 2018-01-16 |
| 9733581 | Electrophotographic photoreceptor, electrophotographic image forming method and electrophotographic image forming apparatus | Toshiyuki Fujita, Mari Konishi, Daisuke Kodama | 2017-08-15 |
| 9417539 | Organic photoreceptor, image forming apparatus, and image forming method | Toshiyuki Fujita, Mari Konishi, Masanori YUMITA | 2016-08-16 |
| 8889325 | Organic photoreceptor | Mari Konishi, Toshiyuki Fujita | 2014-11-18 |
| 7625683 | Image forming method, a processing cartridge and an image forming method using the same | Shigeaki Tokutake, Masao Asano | 2009-12-01 |
| 7541125 | Organic photoconductor, manufacturing method thereof, and process cartridge and image formation apparatus using the same photoconductor | Nobuaki Kobayashi, Shigeaki Tokutake | 2009-06-02 |
| 7529504 | Organic photoconductor, process cartridge and image forming apparatus both employing the same | Shigeaki Tokutake | 2009-05-05 |
| 7510809 | Electrophotographic photoreceptor with two layer charge transfer layer, and apparatus utilizing the same | Chigusa Yamane, Kunihiro Ogura | 2009-03-31 |
| 7479359 | Photoconductor for electrophotography | Masao Asano, Hiroshi Yamazaki, Hideo Yoshizawa, Akihiko Itami | 2009-01-20 |
| 7378212 | Image forming method, photoreceptor | Shigeaki Tokutake | 2008-05-27 |
| 7344810 | Photosensitive member | Kimiyiki Ito, Takeshi Ishida | 2008-03-18 |
| 7041419 | Organic photoreceptor unit | Shigeaki Tokutake | 2006-05-09 |
| 6933090 | Photosensitive member for electrophotography | Shigeaki Tokutake, Takeshi Ishida | 2005-08-23 |
| 6511542 | Apparatus and method for producing electrophotographic photoreceptor | — | 2003-01-28 |
| 6368764 | Photosensitive member for electrophotography | Shigeaki Tokutake, Teiko Edo | 2002-04-09 |
| 6365309 | Photosensitive member for electrophotography with specic surface protective layer | Shigeaki Tokutake, Teiko Edo, Mitsutoshi Sakamoto | 2002-04-02 |
| 6280896 | Photosensitive member for electrophotography | Shigeaki Tokutake, Teiko Edo | 2001-08-28 |
| 6120955 | Substrate for photosensitive member, photosensitive member, production method thereof and image forming apparatus using the photosensitive member | Shigeaki Tokutake, Teiko Yamaguchi, Mitsutoshi Sakamoto | 2000-09-19 |
| 5395715 | Photosensitive member having photosensitive layer which comprises amino compound as charge transporting material | Hideaki Ueda, Shigeaki Tokutake, Yuki Shimada | 1995-03-07 |
| 5380613 | Photosensitive member comprising electronattracting compound and hindered phenol compound | Hideaki Ueda, Shigeaki Tokutake, Yuki Shimada | 1995-01-10 |