Issued Patents 1994
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5358536 | Dyestuff for heat-sensitive transfer record and transfer sheet containing same | Hitoshi Koshida, Isamu Ghoda, Tsukasa Ohyama | 1994-10-25 |
| 5359075 | Quinophthalone compound | Tsukasa Ohyama, Yasushi Shimokawa, Yoriaki Matsuzaki, Isamu Ghoda, Hitoshi Koshida | 1994-10-25 |
| 5342974 | Halogenated anthraquinone and their use as near infrared rays absorbing optical filters | Tsukasa Ohyama, Shizuo Kuroda, Hiroshi Aiga | 1994-08-30 |
| 5302573 | Transfer sheet for sublimation recording | Tsukasa Ohyama, Yasushi Shimokawa, Isamu Ghoda, Hitoshi Koshida, Akitoshi Igata | 1994-04-12 |
| 5300475 | Sublimation thermal transfer printing sheet comprising novel magenta dyestuffs | Tsukasa Ohyama, Tamio Mikoda, Isamu Ghoda, 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, Isamu Ghoda, Hitoshi Koshida +4 more | 1994-03-22 |