Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5292439 | Method for preparing ultrapure water | Junya Watanabe, Toyokazu Sugawara | 1994-03-08 |
| 5248435 | Ion exchange resin, process for producing the same, and method for removing impurities from condensate | Junya Watanabe, Shintaro Sawada | 1993-09-28 |
| 4636554 | Process for producing a chloromethylated polymer | Akira Tada, Takeshi Teraue, Yoshihiro Kusumoto | 1987-01-13 |
| 4409377 | Suspension polymerization process | Yoshiharu Misaka | 1983-10-11 |