Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6500593 | Toner, and toner production process | Koji Abe | 2002-12-31 |
| 6358658 | Toner, and process for producing toner | Yayoi Tazawa, Takeshi Ikeda, Yoshinobu Baba, Yuzo Tokunaga, Yasukazu Ayaki | 2002-03-19 |
| 6165663 | Magnetic coated carrier two-component type developer and developing method | Yoshinobu Baba, Takeshi Ikeda, Yuko Sato, Yuzo Tokunaga | 2000-12-26 |
| 6124070 | Toner and process for producing toner | Yoshinobu Baba, Tetsuro Fukui, Hiroshi Aoto, Yasukazu Ayaki | 2000-09-26 |
| 6106990 | Process for producing toner particles | Yayoi Tazawa, Yoshinobu Baba, Yuzo Tokunaga, Yasukazu Ayaki | 2000-08-22 |
| 6083655 | Magnetic brush developing method | Yuko Sato, Yoshinobu Baba, Yuzo Tokunaga | 2000-07-04 |
| 5985502 | Toner for developing an electrostatic image and process for producing a toner | Yasukazu Ayaki, Takeshi Ikeda, Tetsuro Fukui, Yoshinobu Baba | 1999-11-16 |
| 5766814 | Magnetic coated carrier, two-component type developer and developing method | Yoshinobu Baba, Takeshi Ikeda, Yuko Sato, Yuzo Tokunaga | 1998-06-16 |
| 5744278 | Toner for developing an electrostatic image and process for producing a toner | Yasukazu Ayaki, Takeshi Ikeda, Tetsuro Fukui, Yoshinobu Baba, Yayoi Nagao | 1998-04-28 |
| 5576133 | Carrier for use in electrophotography, two component-type developer and image forming method | Yoshinobu Baba, Takeshi Ikeda, Yasuko Amano | 1996-11-19 |
| 5573880 | Carrier for electrophotography, process for its production, two-component type developer, and image forming method | Shinya Mayama, Takeshi Ikeda, Yuko Sato, Yoshinobu Baba, Hiroshi Aoto +2 more | 1996-11-12 |
| 5494770 | Image forming method using magnetic brush and specific carrier | Yoshinobu Baba, Yasuko Amano | 1996-02-27 |
| 5439771 | Carrier for use in electrophotography, two component-type developer and image forming method | Yoshinobu Baba, Yasuko Amano | 1995-08-08 |