Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8945462 | Methods for manufacturing a calcined gypsum and a gypsum board | — | 2015-02-03 |
| 8157954 | Method of recovering a base paper for gypsum board | Michio Nishi, Takehiro TANAKA | 2012-04-17 |