Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4292353 | Urethane modified polyisocyanurate foam surfaced with aluminum foil or sheet | Takashi Ohashi, Toru Okuyama, Akira Suzuki, Katsuhiko Arai, Minoru Kojima +5 more | 1981-09-29 |