Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5716746 | Magnetic toner and process for producing magnetic toner | Yushi Mikuriya, Toshiaki Nakahara, Masayoshi Shimamura, Kazuyoshi Hagiwara, Masami Fujimoto | 1998-02-10 |
| 5354637 | Magnetic toner | Masayoshi Shimamura, Toshiaki Nakahara, Kazuyoshi Hagiwara, Yushi Mikuriya, Masami Fujimoto | 1994-10-11 |
| 5213933 | Positively chargeable magnetic toner, image forming process image forming apparatus, apparatus unit and facsimile apparatus | Ichirou Osaki, Keita Nozawa, Masatsugu Fujiwara, Masayoshi Shimamura | 1993-05-25 |
| 5202731 | Image forming apparatus having an alternating bias electric field | Hirohide Tanikawa, Yasutaka Akashi, Masaaki Taya, Masaki Uchiyama | 1993-04-13 |
| 5175070 | Image forming method and image forming apparatus | Hirohide Tanikawa, Yasutaka Akashi, Masaaki Taya, Masaki Uchiyama | 1992-12-29 |
| 4912010 | Process for producing toner | Hiromi Mori, Satoshi Matsunaga, Yoshihiko Hyosu | 1990-03-27 |
| 4816366 | Process for producing toner through suspension polymerization | Yoshihiko Hyosu, Takeshi Ikeda, Hitoshi Kanda, Hiromi Mori, Hiroaki Kawakami | 1989-03-28 |
| 4804610 | Process for producing toner by suspension polymerization method | Hiromi Mori, Satoshi Matsunaga, Yoshihiko Hyosu, Eiichi Imai | 1989-02-14 |