Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6420079 | Electrophotographic toner and electrophotographic apparatus | Tatsuo Imafuku, Junichi Saito, Yoshiaki Akazawa, Yuichiro Takesue | 2002-07-16 |
| 6214511 | Toner and manufacturing method thereof | Yoshiaki Akazawa, Yuichiro Takesue, Takeshi Kato, Junichi Saito | 2001-04-10 |
| 6194028 | Apparatus and method of improving particle surface | Takahiro Horiuchi, Norihiro Ochi, Hiroshi Kubota, Yoshiaki Akazawa, Hideshi Izumi | 2001-02-27 |
| 6177224 | Method of manufacturing electrophotographic toner | Tatuo Imafuku, Tadashi Nakamura, Hitoshi Nagahama, Yoshinori Urata, Satoshi Ogawa | 2001-01-23 |
| 6110635 | Toner for electrophotography and a production method thereof | Yoshinori Urata, Tatsuo Imafuku, Toshihisa Ishida, Takahiro Bito, Tadashi Nakamura +2 more | 2000-08-29 |
| 6103439 | Toner used for electrophotography | Satoshi Ogawa, Hitoshi Nagahama, Tatsuo Imafuku, Takeaki Ohuchi, Toshihisa Ishida +1 more | 2000-08-15 |
| 6004713 | Toner, Developer, and process for producing the same | Yoshinori Urata, Hitoshi Nagahama, Satoshi Ogawa, Toshihisa Ishida, Tadashi Nakamura +1 more | 1999-12-21 |
| 5981129 | Electrophotographic toner and method of manufacturing same | Yoshiaki Akazawa, Toshihiko Murakami, Tatuo Imafuku, Takeaki Ohuchi, Satoshi Ogawa +3 more | 1999-11-09 |
| 5976751 | Electrophotographic printing-use toner | Tadashi Nakamura, Hitoshi Nagahama, Satoshi Ogawa, Toshihisa Ishida, Takeaki Ohuchi | 1999-11-02 |
| 5846683 | Toner producing method using recycled extra-fine toner particles | Toshihiko Murakami, Tadashi Nakamura, Junichi Saito, Takeaki Ouchi, Satoshi Ogawa +1 more | 1998-12-08 |
| 5799881 | Method and system of producing toner | Yoshinori Urata, Takao Yoneda, Yoshiaki Akazawa, Nobuhiko Nakano, Tadashi Nakamura +2 more | 1998-09-01 |
| 5565294 | Electrostatic charge image-developing toner with polyethylene additive | Tadayuki Sawai, Tadashi Nakamura, Toshihiko Murakami, Katsuaki Sumida, Toshihisa Ishida | 1996-10-15 |