Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9988269 | Method for producing peroxymonosulfuric acid and apparatus for continuously producing peroxymonosulfuric acid | Kiyoshi Yoshida, Tetsuo Koshitsuka, Wakana Uesugi | 2018-06-05 |
| 9181094 | Method for producing peroxymonosulfuric acid and apparatus for continuously producing peroxymonosulfuric acid | Kiyoshi Yoshida, Tetsuo Koshitsuka, Wakana Uesugi | 2015-11-10 |
| 5693599 | Flux washing agent | Tetsuo Aoyama, Toshio Kondoh, Toshihiko Kobayashi | 1997-12-02 |
| 4381221 | Process for recovering a reaction product while preventing decomposition of the catalyst | Tomiya Isshiki, Hisashi Yoshino | 1983-04-26 |
| 4239741 | Process for producing hydrazine sulfate | Tomiya Isshiki, Tetsuo Tomita, Toshiaki Kozaki, Osamu Aoki, Mitsuo Abe +4 more | 1980-12-16 |