Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5950062 | Toner sorting device for separating reusable toner from used toner and image forming apparatus using the same device | Masasumi Yahata, Shunji Katoh, Yuji Kitajima, Satoshi Takano, Fumihito Itoh +1 more | 1999-09-07 |
| 5923936 | Cleaning device for an image transfer belt device | Ryou Tanoue | 1999-07-13 |
| 4900909 | Card printing apparatus | Masayoshi Nagashima | 1990-02-13 |
| 4279883 | Process for producing hydrogen peroxide | Yusuke Izumi, Hidetaka Miyazaki | 1981-07-21 |