Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5247883 | Apparatus for making a printing plate and a printing plate thereof | Sohichi Kuwahara, Shigeyoshi Hirashima | 1993-09-28 |
| 5213034 | Gravure printing plate with angled and offset hole pattern and smear preventing slots adjacent the holes | Sohichi Kuwahara, Shigeyoshi Hirashima | 1993-05-25 |