Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4390723 | Process for producing hydroxyphenyl aliphatic acid derivatives | Masahiro Matsuno, Yasushi Higuchi, Yutaka Ohishi, Chihiro Yazawa | 1983-06-28 |
| 4367345 | Process for producing tolylthiourea having high purity | Yutaka Ohishi, Chihiro Yazawa | 1983-01-04 |
| 4307034 | Inert organic solvent dispersion of alkali hydroxide and reaction using the same | Taro Izawa, Yasushi Higuchi, Yutaka Ohishi, Chihiro Yazawa | 1981-12-22 |
| 4289916 | Process for producing p-chloroalkylbenzene | Chihiro Yazawa, Koji Yamanashi | 1981-09-15 |
| 4280958 | Process for producing indoline derivative | Yasushi Higuchi, Chihiro Yazawa | 1981-07-28 |
| 4212831 | Process for producing triphenylphosphine | Kazushige Hirao, Chihiro Yazawa | 1980-07-15 |