Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4390723 | Process for producing hydroxyphenyl aliphatic acid derivatives | Masahiro Matsuno, Yasushi Higuchi, Yoshiki Nakayama, Chihiro Yazawa | 1983-06-28 |
| 4367345 | Process for producing tolylthiourea having high purity | Yoshiki Nakayama, Chihiro Yazawa | 1983-01-04 |
| 4307034 | Inert organic solvent dispersion of alkali hydroxide and reaction using the same | Yoshiki Nakayama, Taro Izawa, Yasushi Higuchi, Chihiro Yazawa | 1981-12-22 |