Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9040217 | Carrier, two-component developer using the same, and image-forming apparatus using said developer | Kazuki Takatsuka, Takahiro Bito, Takeshi Satoh, Masaki Ueji | 2015-05-26 |
| 8043781 | Toner, two-component developer and image formation device | Takahiro Bito, Takeshi Satoh | 2011-10-25 |
| 7514193 | Developing toner for electrostatic latent images, imaging forming method and image forming apparatus | Hitoshi Nagahama, Takahiro Bito, Tenjiku Eiji, Takeshi Satoh, Ohkawa Takeshi | 2009-04-07 |
| 7449274 | Toner for electrostatic image development and image forming method using the same | Takahiro Bito, Eiji Tenjiku, Takeshi Satoh, Takeshi Ohkawa, Akiko Tsujimoto | 2008-11-11 |
| 7070897 | Developer for use in electrophotography and method and apparatus for image formation | Junichi Saito, Takahiro Bito | 2006-07-04 |
| 6864031 | Electrophotographic developer and image-forming method using the developer | Toshihisa Ishida, Junichi Saito, Takahiro Bito | 2005-03-08 |
| 6420079 | Electrophotographic toner and electrophotographic apparatus | Yasuharu Morinishi, Junichi Saito, Yoshiaki Akazawa, Yuichiro Takesue | 2002-07-16 |
| 6110635 | Toner for electrophotography and a production method thereof | Yoshinori Urata, Toshihisa Ishida, Takahiro Bito, Tadashi Nakamura, Yoshiaki Akazawa +2 more | 2000-08-29 |
| 6103439 | Toner used for electrophotography | Satoshi Ogawa, Hitoshi Nagahama, Yasuharu Morinishi, Takeaki Ohuchi, Toshihisa Ishida +1 more | 2000-08-15 |
| 6066423 | Toner for electrophotography | Toshihisa Ishida, Yoshinori Urata, Takahiro Bito, Nobuyasu Honda | 2000-05-23 |
| 5364719 | Toner for developing electrostatic images | Hideki Ohta, Masami Tsujihiro, Toshiro Tokuno, Hiroshi Shimoyama, Nobuhiro Hirano | 1994-11-15 |
| 5364728 | Method of manufacturing a toner | Hideki Ohta, Masami Tsujihiro, Toshiro Tokuno, Hiroshi Shimoyama, Nobuhiro Hirano | 1994-11-15 |
| 5184181 | Cartridge discriminating system | Shigeo Kurando, Yoshinori Makiura, Yutaka Shigemura, Junichi Ooura, Eiji Mifune +2 more | 1993-02-02 |
| 4963939 | Cartridge discriminating system | Shigeo Kurando, Yoshinori Makiura, Yutaka Shigemura, Junichi Ooura, Eiji Mifune +2 more | 1990-10-16 |