Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4996127 | Toner for developing an electrostatically charged image | Yukinobu Hasegawa, Hiroyoshi Shimomura, Koichi Murai, Masatoshi Maruyama | 1991-02-26 |
| 4797339 | Toner for developing electrostatic images | Masatoshi Maruyama, Yukinobu Hasegawa | 1989-01-10 |