TK

Takafumi Kawanaka

NC Nippon Zeon Co.: 5 patents #73 of 609Top 15%
ZE Zeon: 3 patents #220 of 734Top 30%
Overall (All Time): #655,391 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
8044147 Nitrile group-containing copolymer rubber and a vulcanizable nitrile group-containing copolymer rubber composition Hiroyasu Nagamori, Akira Tsukada 2011-10-25
7923514 Method of hydrogenating conjugated diene polymer, hydrogenation catalyst system, and composition of basic, conjugated diene polymer Kazuhiro Takahashi 2011-04-12
6657014 Crosslinkable rubber composition and crosslinked object Osamu Mori, Yoshiaki Aimura, Hiroyuki Kotsuji, Haruhiko Fujita 2003-12-02
5334683 Acrylate polymer elastomer and vulcanizable composition containing the same Takeshi Ohishi, Masahiro Shimizu 1994-08-02
5294233 Additive for organic medium or thermoplastic polymer Shizuo Kitahara, Hiroyuki Watanabe, Takuji Kishimoto, Tetuya Toyoshima, Kohkichi Noguchi 1994-03-15
5280080 Acrylic copolymer elastomer and vulcanizable composition containing same Kiyoshi Hosoya 1994-01-18
5216101 Acrylic copolymer elastomer and vulcanizable composition containing same Kiyoshi Hosoya 1993-06-01
5001196 Process for preparation of diene type polymer rubber Hiroyuki Watanabe, Kohkichi Noguchi, Shuichi Akita 1991-03-19