Inventor
KIDA YASUJI
JP9 patents
Patents
9 patentsUS5349065ASep 20, 1994
Photochromic compound
TOKUYAMA SODA KK46 citations96
US5130058AJul 14, 1992
Photochromic compound, process for production thereof, use thereof and composition containing said photochromic compound
TOKUYAMA SODA KK64 citations96
US5106998AApr 21, 1992
Photochromic compound, composition and use thereof
TOKUYAMA SODA KK74 citations96
US4369298AJan 18, 1983
Novel cured resin, process for production thereof, and lens composed of said resin from bis(alkyleneoxyphenyl)-diacrylate, bis(alkyleneoxyphenyl)diallyl ether, bis(alkyleneoxyphenyl)diallyl carbonate monomers
TOKUYAMA SODA KK117 citations94
US4882438ANov 21, 1989
Photochromatic compounds
TOKUYAMA SODA KK31 citations92
US5214116AMay 25, 1993
Resin derived from sulfur-containing unsaturated compound and having a high refractive index
TOKUYAMA SODA KK26 citations87
US4960678AOct 2, 1990
Photochromic compounds
TOKUYAMA SODA KK22 citations82
US4602075AJul 22, 1986
Monomeric mixture for cured polymeric material used in organic glass
TOKUYAMA SODA KK12 citations71
US4647639AMar 3, 1987
Monomeric mixture for cured polymeric material used in organic glass
TOKUYAMA SODA KK0 citations49