Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5656569 | Thermal recording material | Toshiyuki Takano, Hideki Hayasaka, Toshimi Satake | 1997-08-12 |
| 5612279 | Optical recording sheet | Toshimi Satake, Toshiyuki Takano, Hideki Hayasaka, Tomoaki Nagai | 1997-03-18 |