Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7955768 | Electrophotographic photoconductor and method for producing the same, image forming apparatus, and process cartridge | Hiromi Tada, Nozomu Tamoto | 2011-06-07 |
| 7824830 | Coating liquid and electrophotographic photoreceptor prepared using the coating liquid | Maiko Kondo, Tatsuya Niimi, Naohiro Toda, Takeshi Orito, Nozomu Tamoto | 2010-11-02 |
| 7670743 | Image forming method | Tatsuya Niimi, Nozomu Tamoto | 2010-03-02 |
| 7560203 | Electrophotographic photoreceptor, method of image formation, image formation apparatus and process cartridge for image formation apparatus | Nozomu Tamoto, Tatsuya Niimi, Tetsuro Suzuki | 2009-07-14 |
| 7534538 | Coating liquid for intermediate layer in electrophotographic photoconductor, electrophotographic photoconductor utilizing the same, image forming apparatus and process cartridge for image forming apparatus | Tatsuya Niimi, Maiko Kondo, Nozomu Tamoto | 2009-05-19 |
| 7507511 | Electrophotographic photoreceptor, and image forming apparatus and process cartridge therefor using the electrophotographic photoreceptor | Nozomu Tamoto, Tatsuya Niimi, Maiko Koeda, Tetsuro Suzuki, Takehiko Kinoshita +1 more | 2009-03-24 |
| 7371490 | Photoconductor, image forming apparatus, image forming process, and process cartridge | Nozomu Tamoto, Tatsuya Niimi, Tetsuro Suzuki | 2008-05-13 |
| 7371491 | Electrophotographic photoreceptor, method for manufacturing the electrophotographic photoreceptor, and image forming apparatus and process cartridge using the electrophotographic photoreceptor | Tatsuya Niimi, Nozomu Tamoto | 2008-05-13 |
| 7177570 | Measurement of frictional resistance of photoconductor against belt in image forming apparatus, process cartridge, and image forming method | Hiroshi Nagame, Hidetoshi Kami | 2007-02-13 |
| 6844124 | Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptor | Hiroshi Ikuno, Hidetoshi Kami, Ryohichi Kitajima, Narihito Kojima, Akihiko Matsuyama +8 more | 2005-01-18 |
| 6707480 | Image formation unit including stored performance information | Minoru Ameyama, Satoru Tomita, Yasuyuki Shinkai, Nekka Matsuura, Naoya Morohoshi +3 more | 2004-03-16 |
| 6641964 | Electrophotographic photoreceptor, method for manufacturing the photoreceptor, and image forming method and apparatus using the photoreceptor | Hiroshi Ikuno, Hidetoshi Kami, Ryohichi Kitajima, Narihito Kojima, Akihiko Matsuyama +8 more | 2003-11-04 |
| 6326112 | Electrophotographic photoreceptor, and process cartridge and image forming apparatus using the photoreceptor | Hiroshi Tamura, Hidetoshi Kami, Tetsuro Suzuki, Tatsuya Niimi, Narihito Kojima | 2001-12-04 |
| 5863683 | Electrophotographic photoconductor containing charge generating azo pigment subjected to a salt-milling process | Masaomi Sasaki, Tamotsu Aruga | 1999-01-26 |
| 5578405 | Electrophotographic photoconductor containing disazo and trisazo pigments | Takaaki Ikegami, Eiji Kurimoto, Takashi Rokutanzono, Masaomi Sasaki, Yasuo Suzuki +3 more | 1996-11-26 |
| 5370954 | Photoconductive composition containing trisazo and disazo compounds | Masaomi Sasaki, Mitsuru Hashimoto, Kazuya Ishida, Tomoyuki Shimada | 1994-12-06 |
| 5105222 | Electrophotographic copying apparatus having photoconductor with magnetic layer | Michio Kimura, Kazuya Ishida, Izumi Aiso, Satoshi Igari | 1992-04-14 |
| 4906545 | Electrophotographic photoconductor with undercoat layer containing metal oxide on support | Toshio Fukagai, Kiyoshi Taniguchi, Kayoko Yokoyama | 1990-03-06 |
| 4863822 | Electrophotographic photoconductor comprising charge generating and transport layers containing adjuvants | Toshio Fukagai, Kiyoshi Taniguchi, Kayoko Yokoyama, Minoru Umeda | 1989-09-05 |
| 4822705 | Electrophotographic photoconductor with layer preventing charge injection | Toshio Fukagai, Kiyoshi Taniguchi, Minoru Umeda, Kayoko Yokoyama | 1989-04-18 |
| 4775605 | Layered photosensitive material for electrophotography | Kenji Seki, Kiyoshi Masuda, Hirofumi Yamanami, Satomi Mochizuki | 1988-10-04 |