Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4666949 | Thermochromic polyurethane foam | Goro Shimizu, Yoshimi Hayashi, Hajime Hasegawa, Taiji Koga, Atsuo Takei +1 more | 1987-05-19 |
TO
Tohru Okuyama
Matsui Shikiso Chemical Co.: 1 patents #14 of 24Top 60%
Overall (All Time): #3,974,732 of 4,157,543Top 100%
1
Patents All Time