Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4901113 | Image-forming device | Noboru Sawayama, Hideo Yuh, Masayuki Takashima, Tadayuki Sekiya | 1990-02-13 |
| 4814821 | Image-forming device | Noboru Sawayama, Hideo Yuh, Masayuki Takashima, Tadayuki Sekiya | 1989-03-21 |
| 4451139 | Cleaning apparatus for photoconductive element | Nobuyuki Yanagawa | 1984-05-29 |
| 4291643 | Developing apparatus in a magnification-variable copier | Yuochi Kobayashi | 1981-09-29 |