Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6491807 | Process for producing sodium persulfate | Kenichi Kimizuka, Shoichiro Kajiwara, Naoki Kogure | 2002-12-10 |
| 6214197 | Process for producing persulfate | Ken-ichi Kimizuka, Shoichiro Kajiwara | 2001-04-10 |
| 6200454 | Process for producing sodium persulfate | Ken-ichi Kimizuka, Shoichiro Kajiwara | 2001-03-13 |