Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5695899 | Colored toner for developing electrostatic images | Hiroshi Kamada, Hitoshi Masuda, Yukinobu Hasegawa, Hiroshi Serizawa, Kensuke Okuda +1 more | 1997-12-09 |
| 5683849 | Colored toner for developing electrostatic images | Hiroshi Kamada, Hitoshi Masuda, Yukinobu Hasegawa, Hiroshi Serizawa, Kensuke Okuda +1 more | 1997-11-04 |
| 5591556 | Toners for developing electrostatic image | Yukinobu Hasegawa, Hiroshi Serizawa, Masatoshi Maruyama | 1997-01-07 |
| 4996127 | Toner for developing an electrostatically charged image | Yukinobu Hasegawa, Koichi Murai, Masatoshi Maruyama, Toyokichi Tange | 1991-02-26 |