Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5958184 | Process for producing thiourea dioxide | Toshiaki Kanada, Masafumi Shimpo, Tetsuo Koshitsuka, Akiko Kimura | 1999-09-28 |
| 4378967 | Process for bleaching fibrous material by hydrogen peroxide | Minoru Yotsuya, Kiyoshi Mae, Toshio Ochiai | 1983-04-05 |