Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814891 | Multicolor sublimation type thermal recording method including color and gradation correction and device therefor | Takashi Uchiyama, Yuji Homma, Tetsuya Sakamoto, Satoru Horiguchi, Mikizo Mizuno | 1989-03-21 |