Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5527385 | Thermochromic composition | Masaaki Sumii, Yasuyuki Yoshimura | 1996-06-18 |
| 5350633 | Thermochromic composition | Masaaki Sumii, Yasuyuki Yoshimura | 1994-09-27 |
| 5350634 | Thermochromic composition | Masaaki Sumii, Yasuyuki Yoshimura | 1994-09-27 |