Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7083887 | Color toner and image forming apparatus using the color toner | Yoshimichi Katagiri | 2006-08-01 |
| 6967070 | Electrophotographic toner and image forming method | Toru Takahashi, Tsuneo Watanuki, Norio Sawatari, Seijiro Ishimaru, Yasuyuki Furuse | 2005-11-22 |
| 6852457 | Image fixing method | Yoshimichi Katagiri | 2005-02-08 |
| 6833228 | Toner and an image formation method | Seijiro Ishimaru, Mutsuo Watanabe, Yoshimichi Katagiri | 2004-12-21 |
| 6821696 | Toner for optical fixing, manufacturing method therefor and image formation apparatus using it | Yoshimichi Katagiri, Shinichi Yaoi, Tomoaki Tanaka, Seijiro Ishimaru, Satoshi Takezawa +4 more | 2004-11-23 |
| 6803165 | Toner for electrophotography, developing agent for electrophotography using the toner, image forming method, and image forming device | Seijiro Ishimaru | 2004-10-12 |
| 6767683 | Image forming toner, 2-component developer, image forming method and method for manufacturing image forming toner | Yasuyuki Furuse, Seijirou Ishimaru | 2004-07-27 |
| 6746808 | Image forming color toner, color image forming method and color image forming apparatus | Shinichi Yaoi, Tomoaki Tanaka, Yoshimichi Katagiri, Seijiro Ishimaru, Satoshi Takezawa +1 more | 2004-06-08 |
| 6727030 | Toner and an image formation method | Seijiro Ishimaru, Mutsuo Watanabe, Yoshimichi Katagiri | 2004-04-27 |
| 6704538 | Color image forming apparatus and color toner | Shinichi Yaoi, Tomoaki Tanaka, Yoshimichi Katagiri | 2004-03-09 |
| 6641965 | COLOR TONER FOR ELECTROPHOTOGRAPHY, AND A COMBINED SET OF COLOR TONERS FOR ELECTROPHOTOGRAPHY USING THE SAME, COLOR DEVELOPING AGENT FOR ELECTROPHOTOGRAPHY USING THE SAME, METHOD FOR FORMING COLOR IMAGES USING THE SAME, AND DEVICE FOR FORMING COLOR IMAGES USING THE SAME | Tomoaki Tanaka, Yoshimichi Katagiri, Masae Nakamura | 2003-11-04 |
| 6620568 | Flash fixing color toner and image forming process using the same | Shinichi Yaoi | 2003-09-16 |
| 6593050 | Flash fixing color toner | Yoshimichi Katagiri, Shinichi Yaoi | 2003-07-15 |
| 6544707 | Two component developing agent and an image forming apparatus by use of the same | Seijiro Ishimaru, Yoshimichi Katagiri, Yuji Sato, Tsuyoshi Itagoshi, Hiromichi Kobayashi | 2003-04-08 |
| 6528221 | Flash fixing toner and fabrication method therefor | Satoshi Takezawa, Yoshimichi Katagiri | 2003-03-04 |
| 6468705 | Optical fixing toner | Seijiro Ishimaru, Yoshimichi Katagiri, Shinichi Yaoi | 2002-10-22 |
| 6025103 | Highly pure material for electrophotographic printing, and method of manufacturing such highly pure material | Norio Sawatari | 2000-02-15 |
| 5635323 | Image forming method | Norio Sawatari, Tsuneo Watanuki, Fumio Takei, Toru Takahashi, Yasuyuki Furuse | 1997-06-03 |
| 5616440 | Photosensitive member, electrophotographic apparatus using the photosensitive member, and process for producing the photosensitive member | Toru Takahashi, Tsuneo Watanuki, Fumio Takei, Norio Sawatari | 1997-04-01 |
| 5589313 | Method for nonmagnetic monocomponent development | Satoshi Takezawa, Yoshimichi Katagiri, Norio Sawatari | 1996-12-31 |
| 5534978 | Imaging apparatus and photoconductor | Norio Sawatari, Fumio Takei, Toru Takahashi, Katsura Sakamoto, Tsuneo Watanuki | 1996-07-09 |
| 5467176 | Image forming method and apparatus with magnetic brush | Tsuneo Watanuki, Satoshi Takezawa, Norio Sawatari, Akira Nagahara, Sachio Sasaki +5 more | 1995-11-14 |