Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5296920 | Color gradation correction method and apparatus | Shigeo Sakaue, Haruo Yamashita, Yasuki Matsumoto, Hideshi Ishihara | 1994-03-22 |
| 5265224 | Recognition unit and recognizing and judging apparatus employing same | — | 1993-11-23 |
| 5153681 | Electrcally plastic device and its control method | Yoshio Kishimoto, Mamoru Soga | 1992-10-06 |
| 4712930 | Gradation thermal printhead and gradation heat transfer printing apparatus | Shinobu Nakata, Michinori Nagahiro, Seiko Minamide | 1987-12-15 |
| 4401998 | Magnetic fluid recording apparatus | Masaharu Ushihara, Michinori Nagahiro, Humio Yamazaki, Masami Nakagawa, Noboru Miyaji | 1983-08-30 |