Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4504562 | One-component type magnetic developer comprises particles of cubic magnetite | Nobuhiro Miyakawa, Masanori Fujii | 1985-03-12 |
| 4414321 | Dry composite blended magnetic developer of resin encapsulated fine magnetite and resin encapsulated coarse magnetite | Nobuhiro Miyakawa, Masanori Fujii | 1983-11-08 |
| 4414322 | Two-component type magnetic developer | Nobuhiro Miyakawa, Masanori Fujii | 1983-11-08 |
| 4407923 | One component magnetic developer | Nobuhiro Miyakawa, Masanori Fujii, Haruo Koyama, Takashi Teshima | 1983-10-04 |
| 4404269 | Developer containing magnetic and non-magnetic toner | Nobuhiro Miyakawa, Masanori Fujii | 1983-09-13 |
| 4401741 | One-component type developer | Nobuhiro Miyakawa | 1983-08-30 |