Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5027745 | Developing apparatus having developer carrying roller with carbon fibers in surface layer | Michihito Yamazaki, Katsuhiko Nishimura, Keiji Okano, Kouichi Suwa, Kimio Nakahata | 1991-07-02 |