Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4214942 | Apparatus for producing a photo-polymer plate having relief image areas thereon | Shinichi Kawatsuji, Toshiie Matsui, Shuu Yoshida | 1980-07-29 |
| 4196018 | Process and apparatus for washing photosensitive resin printing plates | Shinichi Kawatsuji, Takeshi Yamagata | 1980-04-01 |