Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9234053 | Process for producing carboxyl-containing polymer composition, and carboxyl-containing polymer composition | Ryousuke Murakami, Shinichi Takemori, Masahiro Suzuki | 2016-01-12 |
| 8629230 | Method for manufacturing carboxyl group-containing water-soluble polymer | Masayuki Toda, Taro Ashida, Masatoyo Yoshinaka, Shinji Kobayashi | 2014-01-14 |
| 8377595 | Gelling agent for batteries | Masatoyo Yoshinaka, Shinji Kobayashi | 2013-02-19 |
| 8309667 | Water-soluble copolymer having alkyl-modified carboxyl groups | Masatoyo Yoshinaka, Shinji Kobayashi | 2012-11-13 |
| 8304517 | Method for producing granulated carboxyl group-containing polymer particle and granulated carboxyl group-containing polymer particle | Masatoyo Yoshinaka, Shinji Kobayashi | 2012-11-06 |
| 8217127 | (Meth)acrylic acid/alkyl (meth)acrylate ester copolymer and cosmetic preparation containing the same | Masatoyo Yoshinaka, Shinji Kobayashi, Masaki Kosugi | 2012-07-10 |
| 7842779 | Process for producing granular carboxylated-polymer particle and granular carboxylated-polymer particle | Masatoyo Yoshinaka, Shinji Kobayashi | 2010-11-30 |
| 7521517 | Method for producing carboxyl group-containing water-soluble polymer | Shinji Kobayashi, Masatoyo Yoshinaka | 2009-04-21 |