Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835603 | Color image reproduction apparatus and a composite light filter and ink ribbon for use therein | Hiroyuki Kano, Matsusaburo Noguchi | 1989-05-30 |
| 4819078 | Electronic print board system | Matsusaburo Noguchi | 1989-04-04 |