Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5481378 | Image forming apparatus with an unapproved copy preventing means | Masashi Sugano, Yoshio Yamazaki, Masaaki Ikeda | 1996-01-02 |
| 5440377 | Apparatus for controlling speed of a developing roller as it engages a photoreceptor | Ken Nonaka, Masaaki Ikeda | 1995-08-08 |
| 5440409 | Image forming apparatus with an unapproved copy preventing means | Masashi Sugano, Yoshio Yamazaki, Masaaki Ikeda | 1995-08-08 |
| 4926249 | Color image reader having a lens and prism incorporated into a single unit | Yoshiyuki Ichihara, Kunio Ito, Norihiro Wakui | 1990-05-15 |
| 4746951 | Color image forming apparatus having an improved arrangement for mounting developing devices thereon | Kazushi Hayakawa, Noboru Hatakeyama, Hitoshi Tamura | 1988-05-24 |
| 4472242 | Method of pipe line washing | Akira Osawa, Jun Nakamura, Yoshiyuki Saito | 1984-09-18 |