Issued Patents 1994
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5358536 | Dyestuff for heat-sensitive transfer record and transfer sheet containing same | Hitoshi Koshida, Tsukasa Ohyama, Keisuke Takuma | 1994-10-25 |
| 5359075 | Quinophthalone compound | Tsukasa Ohyama, Yasushi Shimokawa, Yoriaki Matsuzaki, Keisuke Takuma, Hitoshi Koshida | 1994-10-25 |
| 5302573 | Transfer sheet for sublimation recording | Tsukasa Ohyama, Yasushi Shimokawa, Keisuke Takuma, Hitoshi Koshida, Akitoshi Igata | 1994-04-12 |
| 5300475 | Sublimation thermal transfer printing sheet comprising novel magenta dyestuffs | Keisuke Takuma, Tsukasa Ohyama, Tamio Mikoda, Hitoshi Koshida, Akitoshi Igata | 1994-04-05 |
| 5296445 | Dye for heat-sensitive transfer record, ink composition for heat-sensitive transfer record, and transfer sheet | Tsukasa Ohyama, Yasushi Shimokawa, Yoriaki Matsuzaki, Keisuke Takuma, Hitoshi Koshida +4 more | 1994-03-22 |