Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7338738 | Electrophotographic photosensitive member and process for producing the same | Satoshi Kojima, Kazuhiko Takada | 2008-03-04 |
| 7060406 | Light-receiving member, image-forming apparatus, and image-forming method | Kunimasa Kawamura, Shigenori Ueda, Toshiyuki Ehara, Junichiro Hashizume, Ryuji Okamura +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, Junichiro Hashizume, Ryuji Okamura +2 more | 2006-04-25 |
| 7033721 | Method for producing electrophotographic photosensitive member, electrophotographic photosensitive member and electrophotographic apparatus using the same | Junichiro Hashizume, Toshiyuki Ehara, Hideaki Matsuoka, Ryuji Okamura, Koji Hitsuishi +2 more | 2006-04-25 |
| 6846600 | Electrophotographic photosensitive member, process for its production, and electrophotographic apparatus | Toshiyuki Ehara, Junichiro Hashizume, Masaya Kawada, Tetsuya Karaki, Kunimasa Kawamura +2 more | 2005-01-25 |
| 6586149 | Light-receiving member, image-forming apparatus, and image-forming method | Kunimasa Kawamura, Shigenori Ueda, Toshiyuki Ehara, Junichiro Hashizume, Ryuji Okamura +2 more | 2003-07-01 |
| 6534228 | Electrophotographic photosensitive member and image forming apparatus | Masaya Kawada, Toshiyuki Ehara, Tetsuya Karaki, Kunimasa Kawamura | 2003-03-18 |
| 6531253 | Electrophotographic photosensitive member and apparatus using same | Toshiyuki Ehara, Koji Yamazaki, Masaya Kawada, Tetsuya Karaki, Kunimasa Kawamura | 2003-03-11 |
| 6529223 | Image forming apparatus with light beam control | Toshiyuki Ehara, Masaya Kawada | 2003-03-04 |
| 6333755 | Electrophotographic apparatus | Toshiyuki Ehara, Masaya Kawada | 2001-12-25 |
| 6330412 | Electrophotographic apparatus | Koji Yamazaki, Yuji Nakayama, Masaya Kawada | 2001-12-11 |
| 6169868 | Electrophotographic apparatus | Koji Yamazaki, Yuji Nakayama, Masaya Kawada | 2001-01-02 |
| 6055404 | Cleaning device for electrophotographic apparatus, electrophotographic apparatus, method for cleaning light receiving member of electrophotographic apparatus, and electrophotographic process comprising the cleaning method | Koji Yamazaki, Toshiyuki Ehara, Yuji Nakayama | 2000-04-25 |
| 5983043 | Potential measuring apparatus and potential measuring method | Koji Yamazaki, Toshiyuki Ehara, Masaya Kawada, Takaaki Kaya, Tetsuya Karaki | 1999-11-09 |