Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4906298 | Hydraulic cement composition | Tadao Natsuume, Yoshiaki Miki | 1990-03-06 |
| 4675359 | Process for producing water-soluble acid amide compounds | Tadao Natsuume | 1987-06-23 |
| 4652621 | Novel water-soluble copolymer | Tadao Natsuume | 1987-03-24 |
| 4588786 | Process for producing water-soluble dicarboxylic acid imide compounds | Tadao Natsuume | 1986-05-13 |