Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8349135 | Papermaking additive and filled paper | Kazunari Sakai, Tomohiko Nakata, Takashi Yamaguchi, Masaki Ito, Yasunobu Ooka | 2013-01-08 |
| 7988826 | Cationic surface sizing agent and paper coated with the same | Kazushige Inaoka, Tomohiko Nakata | 2011-08-02 |
| 5731129 | Photosensitive resin composition comprising a carboxyl group-containing diene copolymer and a hydrogenated diene block polymer | Katsuo Koshimura, Takayoshi Tanabe, Hozumi Sato, Noboru Oshima, Takashi Nishioka | 1998-03-24 |
| 5596041 | Hydrogenated block copolymer and hydrogenated block copolymer compositon | Minoru Hasegawa, Kunio Goshima, Yasuhiko Takemura, Yoshiyuki Higuchi, Motokazu Takeuchi | 1997-01-21 |
| 5346964 | (Modified) hydrogenated diene block copolymer and composition comprising the same | Tooru Shibata, Toshio Teramoto, Kunio Goshima | 1994-09-13 |
| 5306779 | Hydrogenated diene block copolymer and composition comprising the same | Tooru Shibata, Toshio Teramoto, Kunio Goshima | 1994-04-26 |
| 5270274 | Catalyst composition for hydrogenating olefinically unsaturated polymers | Takashi Ishida, Hiroyuki Sasanuma, Yasuhiko Takemura | 1993-12-14 |
| 5191024 | Hydrogenated diene block copolymer and composition comprising the same | Tooru Shibata, Toshio Teramoto, Kunio Goshima | 1993-03-02 |
| 5169905 | Hydrogenation catalyst composition and process for hydrogenating olefinically unsaturated polymer using the same | Hideo Katsumata, Kunio Goshima, Toshio Teramoto, Yasuhiko Takemura | 1992-12-08 |
| 5158697 | Deinking agent for reproduction of printed waste papers | Yukiyoshi Kawamori, Susumu Monno, Yoshikazu Inoue, Masao Hamada | 1992-10-27 |