Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5131767 | Halftone printing system | Keiki Yamada, Masaru Ohnishi | 1992-07-21 |
| 5077606 | Color signal emphasizing/de-emphasizing circuit | Susumu Tokumaru | 1991-12-31 |
| 4330786 | Method of controlling thermally controlling a thermal printing head | Masatoshi Kato, Fumitake Tokugawa, Toshiharu Nozawa | 1982-05-18 |
| 4315135 | Thermal recording head | Fumitake Tokugawa | 1982-02-09 |