Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4605940 | Thermoresponsive recording paper sheet | Ryoichi Kinishi, Naoki Hanayama | 1986-08-12 |
| 4558335 | Thermoresponsive recording sheet | Naoki Hanayama, Ryoichi Kinishi | 1985-12-10 |