Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4665001 | Negatively chargeable blue toner comprising indanthrone dye | Nobuyasu Honda, Akira Horiuchi, Masahiko Kubo | 1987-05-12 |
| 4645729 | Method for preventing offset in electrophotography | Nobuyasu Honda, Masahiko Kubo | 1987-02-24 |
| 4504562 | One-component type magnetic developer comprises particles of cubic magnetite | Nobuhiro Miyakawa, Kouzi Maekawa | 1985-03-12 |
| 4416964 | Dry magnetic developer containing a non-pulverizing agglumerate of cubic magnetite particles | Nobuhiro Miyakawa, Takashi Teshima, Haruo Koyama, Kouji Maekawa | 1983-11-22 |
| 4414321 | Dry composite blended magnetic developer of resin encapsulated fine magnetite and resin encapsulated coarse magnetite | Nobuhiro Miyakawa, Kouzi Maekawa | 1983-11-08 |
| 4414322 | Two-component type magnetic developer | Nobuhiro Miyakawa, Kouzi Maekawa | 1983-11-08 |
| 4407923 | One component magnetic developer | Nobuhiro Miyakawa, Kouzi Maekawa, Haruo Koyama, Takashi Teshima | 1983-10-04 |
| 4404269 | Developer containing magnetic and non-magnetic toner | Nobuhiro Miyakawa, Kouzi Maekawa | 1983-09-13 |