Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5137947 | Composition for water proof sheets | Takao Aizawa, Noboru Yamaguchi, Yutaka Ueda | 1992-08-11 |
| 5068270 | Composition for water proof sheets | Takao Aizawa, Noboru Yamaguchi, Yutaka Ueda | 1991-11-26 |
| 4307211 | Preparation of an ethylene-ethyl acrylate-acrylic acid terpolymer | Yukio Ito, Kiroku Tsukada, Fumio Tsuruwaka | 1981-12-22 |