Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683628 | Photochromic composition and photochromic resin obtainable by using the same | Hitoshi Mizuno, Satoshi Kubota, Tooru Saito, Takashi Kobayakawa | 1997-11-04 |
| 5684064 | Silicone composition, elastic revolution body and fixing device using the composition | — | 1997-11-04 |
| 5643973 | Silicone composition, elastic revolution body and fixing device using the same | — | 1997-07-01 |