Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6233501 | System for engraving a plurality of gravure rolls | Keisuke Hirai, Takumi Yoshida, Yoshikazu Matsuno | 2001-05-15 |
| 5828464 | Electromechanical rotogravure stylus automatic calibrator | Takumi Yoshida, Minetoshi Yamaguchi | 1998-10-27 |
| 5822078 | System for engraving a plurality of gravure rolls | Keisuke Hirai, Takumi Yoshida, Yoshikazu Matsuno | 1998-10-13 |
| 5663801 | Control circuit for controlling stylus overshoot in an engraving machine used for engraving gravure cylinders and method for same | Kohji Hada | 1997-09-02 |