Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7439003 | Magnetic black toner for electrophotography having Mn-containing hematite compound and magnetic two-component developer for electrophotography containing the same | Seijirou Ishimaru, Sadaaki Yoshida, Yoshimichi Katagiri | 2008-10-21 |
| 6075964 | Image forming developing method | Masumi Asanae, Toshihiko Noshiro, Koji Noguchi | 2000-06-13 |
| 6072974 | Image forming developing method | Masumi Asanae, Toshihiko Noshiro, Koji Noguchi | 2000-06-06 |
| 5926677 | Image forming developing method | Masumi Asanae, Toshihiko Noshiro, Koji Noguchi | 1999-07-20 |
| 5900343 | Ferrite carrier for electrophotographic development | Masumi Asanae, Tsutomu Saitoh | 1999-05-04 |
| 5876893 | Ferrite carrier, two-component developer and electrostatic imaging method using the developer | Masumi Asanae, Tsutomu Saitoh, Takashi Hayano | 1999-03-02 |
| 5866289 | Developer for electrostatic development and electrostatic developing method using same | Masumi Asanae | 1999-02-02 |
| 5789129 | Ferrite carrier for electrophotographic development | Tsutomu Saitoh | 1998-08-04 |
| 5786120 | Two component developer | Masumi Asanae | 1998-07-28 |
| 5731121 | Developer for electrostatic latent image development | Masumi Asanae, Akihiko Funakawa | 1998-03-24 |
| 5717983 | Simultaneous developing/cleaning method using magnetic support member | Masumi Asanae, Toshihiko Noshiro, Koji Noguchi | 1998-02-10 |
| 5669051 | Method of electrostatically forming visual image | Tsutomu Saitoh, Masumi Asanae | 1997-09-16 |
| 5659861 | Method of developing electrostatic latent image | Keitaro Yamashita, Masumi Asanae, Toshihiro Noshiro | 1997-08-19 |
| 5634182 | Method of developing electrostatic latent image | Masumi Asanae | 1997-05-27 |
| 5565967 | Method of forming image using magnetic developer with high volume resistivity | Tsutomu Saitoh, Masumi Asanae | 1996-10-15 |
| 5565966 | Image forming method for setting a developing gap | Toshihiko Noshiro, Masumi Asanae | 1996-10-15 |
| 5559541 | Direct recording method | Masumi Asanae, Koji Noguchi | 1996-09-24 |
| 5554479 | Image formation method | Masumi Asanae | 1996-09-10 |
| 5547795 | Magnetic carrier for developer | Tsutomu Saitoh, Masumi Asanae | 1996-08-20 |
| 5532095 | Magnetic toner | Masumi Asanae, Fumio Kimura, Akihiko Funakawa, Toshihiko Noshiro | 1996-07-02 |
| 5516613 | Binary developer | Masumi Asanae, Tsutomu Saitoh | 1996-05-14 |