Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4197003 | Switch device in electrostatic photographic copying machine | Tetsuya Okada, Tadashi Umeda, Masahiro Murakami | 1980-04-08 |
| 4181424 | Method of and means for synchronously transferring original and copying paper for electrostatic photoduplication | Tetuya Okada, Tadashi Umeda, Masahiro Murakami | 1980-01-01 |