Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5371280 | Polymerization inhibitor and inhibiting method for vinyl compound | Hidefumi Haramaki, Kazuhiko Sakamoto, Masatoshi Ueoka, Yohji Akazawa | 1994-12-06 |
| 5322960 | Method for inhibiting polymerization of (meth) acrylic acid and esters thereof | Kazuhiko Sakamoto, Takahiro Takeda, Masatoshi Ueoka, Yoji Akazawa | 1994-06-21 |
| 5315037 | Process for purification of acrylic acid | Kazuhiko Sakamoto, Hiroaki Tanaka, Masatoshi Ueoka, Yoji Akazawa | 1994-05-24 |
| 5288790 | Method for producing spherical fine particles of colored resin | Saburo Nakahara, Yasuhiro Yamamoto, Yohji Akazawa, Yoshikuni Mori | 1994-02-22 |