Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5336587 | Method of manufacturing main plates for exposure printing | Hiroshi Tanaka | 1994-08-09 |
| 5326663 | Method of manufacturing shadow mask | Hiroshi Tanaka, Katsumi Ichikawa | 1994-07-05 |