HW

Hisashi Watabu

SC Sumitomo Chemical: 4 patents #1,124 of 4,033Top 30%
📍 Ibaraki, JP: #2,214 of 6,779 inventorsTop 35%
Overall (All Time): #1,269,906 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6603035 Method for producing high purity cyanate Satoshi Okamoto 2003-08-05
6225492 Purification method of cyanate Satoshi Okamoto 2001-05-01
6037438 Cyanite composition and copper-clad laminate using the composition Yasuhiro Endo, Yoichi Ueda, Toshiaki Hayashi, Mitsuhiro Shibata, Shuichi Kanagawa +1 more 2000-03-14
5563237 Cyanate resin composition and copper-clad laminate Yasuhiro Endo, Yoichi Ueda, Toshiaki Hayashi, Mitsuhiro Shibata, Shinichiro Kitayama +1 more 1996-10-08