Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5731465 | Process for the preparation of tertiary butyl hydrazine hydrohalogenide | Yoichi Hasegawa, Shunji Hyoda, Hiroyuki Fujita, Takafumi Kawada | 1998-03-24 |
| 4435600 | Process for preparation of tertiary butyl hydrazine | Yoichi Hasegawa, Syuji Hara | 1984-03-06 |
| 4310696 | Process for producing inorganic acid salts of tertiary butyl hydrazine | Shiro Hojo, Yoichi Hasegawa | 1982-01-12 |