Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4826750 | Development process in electrophotography utilizing carbon black of specified coloring power | Mamoru Kato, Kenichi Matsunobu, Naoka Fujie, Hiroyuki Hazama | 1989-05-02 |
| 4633808 | Developing process for electrophotography using a two-component developer | — | 1987-01-06 |
| 4576888 | Toner for electrophotography comprising azoic pigment having silica core | Nobuhiro Miyakawa, Teruaki Higashiguchi, Kaname Nakatani | 1986-03-18 |
| 4530893 | One-component type red color magnetic developer | Nobuhiro Miyakawa | 1985-07-23 |
| 4524117 | Electrophotographic method for the formation of two-colored images | Mamoru Kato, Syoji Nakagama, Yumiko Sano | 1985-06-18 |
| 4416964 | Dry magnetic developer containing a non-pulverizing agglumerate of cubic magnetite particles | Nobuhiro Miyakawa, Takashi Teshima, Haruo Koyama, Masanori Fujii | 1983-11-22 |