Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4211558 | Color printing method | Hidehiko Ishikawa, Haruyoshi Okuyama, Yasuo Uchida, Kiyoshi Izawa | 1980-07-08 |
| 4182560 | Color printing method | Hidehiko Ishikawa, Haruyoski Okuyama, Yasuo Uchida, Kiyoshi Izawa | 1980-01-08 |