Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5126773 | Photographic camera capable of incorporating additional image such as letter and picture | Toshitaka Yagi | 1992-06-30 |
| 5073797 | Toner sealing arrangement for a dry developing device of an electrostatic copier | Hirotsugu Sakamoto, Yoshihiro Katayama, Toshi Saitoh | 1991-12-17 |
| 4947211 | Developing device | Yoshihiro Katayama, Toshi Saitoh | 1990-08-07 |
| 4903634 | Developing device | Yoshihiro Katayama, Hayato Kamada, Hidenori Kunishige | 1990-02-27 |