Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5912385 | Process for the production of pure alkanesulfonic acids | Hiromitsu Kobayashi, Hirohisa Nitoh, Hirotsugu Kitamura | 1999-06-15 |
| 4244690 | Method of dyeing fibrous products | Kanji Sato, Masaru Nishii, Yasuhiro Kanaya, Yasumasa Kawabe | 1981-01-13 |
| 4240791 | Dyeing method for fibrous products | Kanji Sato, Masaru Nishii, Yasuhiro Kanaya, Yasumasa Kawabe | 1980-12-23 |
| 4235812 | Process for preparing thiourea dioxide | Osamu Fujimoto, Jiro Watanabe | 1980-11-25 |
| 4197256 | Method of stabilizing an alkaline aqueous solution of thiourea dioxide | Kanji Sato, Masaru Nishii, Yasuhiro Kanaya, Yasumasa Kawabe | 1980-04-08 |