Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6134413 | Carrier for magnetic developer and method of electrophotographically forming visual image | Tsutomu Saitoh, Takashi Hayano | 2000-10-17 |
| 6075964 | Image forming developing method | Masahisa Ochiai, Toshihiko Noshiro, Koji Noguchi | 2000-06-13 |
| 6072974 | Image forming developing method | Masahisa Ochiai, Toshihiko Noshiro, Koji Noguchi | 2000-06-06 |
| 5926677 | Image forming developing method | Masahisa Ochiai, Toshihiko Noshiro, Koji Noguchi | 1999-07-20 |
| 5900343 | Ferrite carrier for electrophotographic development | Masahisa Ochiai, Tsutomu Saitoh | 1999-05-04 |
| 5876893 | Ferrite carrier, two-component developer and electrostatic imaging method using the developer | Masahisa Ochiai, Tsutomu Saitoh, Takashi Hayano | 1999-03-02 |
| 5866289 | Developer for electrostatic development and electrostatic developing method using same | Masahisa Ochiai | 1999-02-02 |
| 5853937 | Two-component magnetic developer for printing characters for magnetic ink character recognition | Fumio Kimura | 1998-12-29 |
| 5812911 | Method of electrostatically forming visual image | — | 1998-09-22 |
| 5786120 | Two component developer | Masahisa Ochiai | 1998-07-28 |
| 5733699 | Developer for developing electrostatic latent image | Akihiko Funakawa, Tsutomu Saitou | 1998-03-31 |
| 5731121 | Developer for electrostatic latent image development | Akihiko Funakawa, Masahisa Ochiai | 1998-03-24 |
| 5717983 | Simultaneous developing/cleaning method using magnetic support member | Masahisa Ochiai, Toshihiko Noshiro, Koji Noguchi | 1998-02-10 |
| 5669051 | Method of electrostatically forming visual image | Masahisa Ochiai, Tsutomu Saitoh | 1997-09-16 |
| 5659861 | Method of developing electrostatic latent image | Keitaro Yamashita, Masahisa Ochiai, Toshihiro Noshiro | 1997-08-19 |
| 5634182 | Method of developing electrostatic latent image | Masahisa Ochiai | 1997-05-27 |
| 5565966 | Image forming method for setting a developing gap | Masahisa Ochiai, Toshihiko Noshiro | 1996-10-15 |
| 5565967 | Method of forming image using magnetic developer with high volume resistivity | Masahisa Ochiai, Tsutomu Saitoh | 1996-10-15 |
| 5559541 | Direct recording method | Masahisa Ochiai, Koji Noguchi | 1996-09-24 |
| 5554479 | Image formation method | Masahisa Ochiai | 1996-09-10 |
| 5547795 | Magnetic carrier for developer | Masahisa Ochiai, Tsutomu Saitoh | 1996-08-20 |
| 5532095 | Magnetic toner | Masahisa Ochiai, Fumio Kimura, Akihiko Funakawa, Toshihiko Noshiro | 1996-07-02 |
| 5516613 | Binary developer | Masahisa Ochiai, Tsutomu Saitoh | 1996-05-14 |
| 5496673 | Carrier for developer of electrostatic latent images | Tsutomu Saitoh | 1996-03-05 |
| 5483329 | Carrier for developer and method of electrophotographically forming visual image using same | Tsutomu Saitoh | 1996-01-09 |