IK

Ikumi Kawaguchi

TO Tokuyama: 2 patents #163 of 562Top 30%
TS Tokuyama Soda: 2 patents #22 of 151Top 15%
Overall (All Time): #1,222,414 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8852737 Coating composition and photochromic optical article Hironobu Nagoh, Katsuhiro Mori 2014-10-07
8557377 Photochromic optical element Katsuhiro Mori, Yuichiro Kawabata, Hironobu Nagoh 2013-10-15
4647639 Monomeric mixture for cured polymeric material used in organic glass Yasuji Kida, Kaoru Miura 1987-03-03
4602075 Monomeric mixture for cured polymeric material used in organic glass Yasuji Kida, Kaoru Miura 1986-07-22