Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5387686 | Dye for heat-sensitive transfer record and ink composition for heat-sensitive transfer record | Tsukasa Ohyama, Yoriaki Matsuzaki, Keisuke Takuma, Isamu Ghoda, Hitoshi Koshida +4 more | 1995-02-07 |
| 5359075 | Quinophthalone compound | Tsukasa Ohyama, Yoriaki Matsuzaki, Keisuke Takuma, Isamu Ghoda, Hitoshi Koshida | 1994-10-25 |
| 5302573 | Transfer sheet for sublimation recording | Tsukasa Ohyama, Keisuke Takuma, Isamu Ghoda, Hitoshi Koshida, Akitoshi Igata | 1994-04-12 |
| 5296445 | Dye for heat-sensitive transfer record, ink composition for heat-sensitive transfer record, and transfer sheet | Tsukasa Ohyama, Yoriaki Matsuzaki, Keisuke Takuma, Isamu Ghoda, Hitoshi Koshida +4 more | 1994-03-22 |
| 5183474 | Heat-sensitive sublimation transfer cyan dye and transfer sheet | Tsukasa Ohyama, Isamu Ghoda, Keisuke Takuma, Hitoshi Koshida | 1993-02-02 |