Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5566598 | Method for surface processing of a photoreceptor base for electrophotography | Sunao Kawada, Masao Itoh, Toyotsugu Itoh, Takayoshi Hashimoto, Akira Ohira | 1996-10-22 |
| 5506786 | Cutting apparatus | Masao Itoh, Sunao Kawada, Toyotsugu Itoh, Takayoshi Hashimoto | 1996-04-09 |
| 5463503 | Method for producing a polygon mirror | Sunao Kawada, Yoshio Iwamura, Toyotsugu Itoh, Takayoshi Hashimoto | 1995-10-31 |
| 5228369 | Method of surface machining for substrate of electrophotographic photoreceptor | Masao Itoh, Sunao Kawada, Takayoshi Hashimoto, Toyotsugu Itoh | 1993-07-20 |
| 5170683 | Method for surface-processing of a photoreceptor base for electrophotography | Sunao Kawada, Masao Itoh, Toyotsugu Itoh, Takayoshi Hashimoto, Shinichi Kawano | 1992-12-15 |