Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4313343 | Apparatus for detecting remaining quantity of toner in electrophotographic copying machine | Isao Kobayashi, Hideo Akimoto, Yoshiyuki Takahashi, Masayuki Hata | 1982-02-02 |