Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5371280 | Polymerization inhibitor and inhibiting method for vinyl compound | Hidefumi Haramaki, Kazuhiko Sakamoto, Yohji Akazawa, Masao Baba | 1994-12-06 |
| 5322960 | Method for inhibiting polymerization of (meth) acrylic acid and esters thereof | Kazuhiko Sakamoto, Takahiro Takeda, Yoji Akazawa, Masao Baba | 1994-06-21 |
| 5315037 | Process for purification of acrylic acid | Kazuhiko Sakamoto, Hiroaki Tanaka, Yoji Akazawa, Masao Baba | 1994-05-24 |