Issued Patents All Time
Showing 25 most recent of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7060406 | Light-receiving member, image-forming apparatus, and image-forming method | Kunimasa Kawamura, Shigenori Ueda, Toshiyuki Ehara, Ryuji Okamura, Masaya Kawada +2 more | 2006-06-13 |
| 7033717 | Process for producing electrophotographic photosensitive member, and electrophotographic photosensitive member and electrophotographic apparatus making use of the same | Satoshi Kojima, Toshiyuki Ehara, Hideaki Matsuoka, Ryuji Okamura, Koji Hitsuishi +2 more | 2006-04-25 |
| 7033721 | Method for producing electrophotographic photosensitive member, electrophotographic photosensitive member and electrophotographic apparatus using the same | Toshiyuki Ehara, Hideaki Matsuoka, Ryuji Okamura, Koji Hitsuishi, Satoshi Kojima +2 more | 2006-04-25 |
| 6846600 | Electrophotographic photosensitive member, process for its production, and electrophotographic apparatus | Toshiyuki Ehara, Masaya Kawada, Tetsuya Karaki, Hironori Ohwaki, Kunimasa Kawamura +2 more | 2005-01-25 |
| 6753123 | Process and apparatus for manufacturing electrophotographic photosensitive member | Ryuji Okamura, Kazuto Hosoi | 2004-06-22 |
| 6670089 | Electrophotographic image forming method and apparatus | Toshiyuki Ehara, Tatsuyuki Aoike, Masaharu Miura | 2003-12-30 |
| 6645688 | Image-forming apparatus and image-forming method | Ryuji Okamura, Kazuto Hosoi | 2003-11-11 |
| 6635397 | Negative-charging electrophotographic photosensitive member | Ryuji Okamura, Kazuto Hosoi | 2003-10-21 |
| 6586149 | Light-receiving member, image-forming apparatus, and image-forming method | Kunimasa Kawamura, Shigenori Ueda, Toshiyuki Ehara, Ryuji Okamura, Masaya Kawada +2 more | 2003-07-01 |
| 6576387 | Image-forming apparatus and image-forming method | Ryuji Okamura, Kazuto Hosoi | 2003-06-10 |
| 6528130 | Exhaust process and film depositing method using the exhaust process | Shigenori Ueda, Ryuji Okamura | 2003-03-04 |
| 6410102 | Plasma process method | Shigenori Ueda, Makoto Aoki | 2002-06-25 |
| 6406824 | Electrophotographic photosensitive member and electrophotographic apparatus having the photosensitive member | Ryuji Okamura, Shigenori Ueda | 2002-06-18 |
| 6365308 | Light receiving member for electrophotography | Satoshi Kojima, Keishi Saito, Hirokazu Ohtoshi, Masafumi Sano, Yasuyoshi Takai +2 more | 2002-04-02 |
| 6322943 | Light-receiving member, image forming apparatus having the member, and image forming method utilizing the member | Makoto Aoki, Shigenori Ueda | 2001-11-27 |
| 6282400 | Image-forming apparatus and image forming method using a controlled dynamic frictional force between a cleaning blade and a photosensitive member | Makoto Aoki, Shigenori Ueda, Ryuji Okamura | 2001-08-28 |
| 6280895 | Light-receiving member with outer layer made by alternatively forming and etching | Shigenori Ueda, Makoto Aoki, Shinji Tsuchida | 2001-08-28 |
| 6238832 | Electrophotographic photosensitive member | Shigenori Ueda, Makoto Aoki | 2001-05-29 |
| 6218064 | Electrophotographic apparatus and electrophotographic light receiving member | Shigenori Ueda, Ryuji Okamura | 2001-04-17 |
| 6203618 | Exhaust system and vacuum processing apparatus | Shigenori Ueda, Ryuji Okamura | 2001-03-20 |
| 6183930 | Electrophotographic photosensitive member having surface of non-monocrystalline carbon with controlled wear loss | Shigenori Ueda, Makoto Aoki | 2001-02-06 |
| 6001521 | Electrophotographic photosensitive member | Shigenori Ueda, Makoto Aoki | 1999-12-14 |
| 5976745 | Photosensitive member for electrophotography and fabrication process thereof | Makoto Aoki, Shigenori Ueda | 1999-11-02 |
| 5958644 | Process to form light-receiving member with outer layer made by alternately forming and etching | Shigenori Ueda, Makoto Aoki, Shinji Tsuchida | 1999-09-28 |
| 5945353 | Plasma processing method | Shigenori Ueda, Shinji Tsuchida | 1999-08-31 |