Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4219220 | Recording material for use in a pressure sensitive copying system | Shinichi Oda, Shoji Aoyagi, Takio Kuroda | 1980-08-26 |
| 4218506 | Recording material and method for the production of the same | Shinichi Oda, Shoji Aoyagi, Takio Kuroda | 1980-08-19 |