Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4446174 | Method of ink-jet recording | Masakazu Maekawa, Sukenori Nakamura, Masatoshi Sugiyama | 1984-05-01 |
| 4365998 | Aqueous inks for ink jet printing | Masatoshi Sugiyama, Nagao Takeda | 1982-12-28 |
| 4308542 | Ink jet recording method | Masakazu Maekawa, Sukenori Nakamura, Masatoshi Sugiyama | 1981-12-29 |