Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7524619 | Coloring matter absorbing near-infrared ray and filter for cutting off near-infrared ray | Masaaki Tamura, Yoji Yamaguchi, Hideo Yamamoto | 2009-04-28 |
| 6579598 | Ink-jet recording material | Yukio Tokunaga | 2003-06-17 |
| 5098881 | Heat sensitive recording material | Shigtetoshi Hiraishi | 1992-03-24 |
| 5093305 | Heat-sensitive recording material | Shigetoshi Hiraishi, Yutaka Shimura | 1992-03-03 |