Inventor
MAEGAWA YUZO
JP11 patents
⚠️ This page may combine multiple inventors who share the name “MAEGAWA YUZO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO CHEMICAL CO
10 patentsUS5049604ASep 17, 1991
Process for producing piperidine derivative and stabilized resin composition containing said derivative
SUMITOMO CHEMICAL CO22 citations92
US4725634AFeb 16, 1988
Stabilizer for synthetic resins
SUMITOMO CHEMICAL CO14 citations73
US4670488AJun 2, 1987
Piperidine derivatives, their production and use as stabilizers
SUMITOMO CHEMICAL CO17 citations73
US4670489AJun 2, 1987
Piperidine derivatives, their production and use as stabilizers
SUMITOMO CHEMICAL CO9 citations73
US4323431AApr 6, 1982
Purification of compounds having high melting point
SUMITOMO CHEMICAL CO8 citations69
US4297508AOct 27, 1981
Process for producing 2 hydroxy-naphthalene-3-carboxylic acid
SUMITOMO CHEMICAL CO3 citations62
US5241103AAug 31, 1993
Process for producing 1,4-dihydroxy-2-arylnaphthoate
SUMITOMO CHEMICAL CO0 citations51
US5162570ANov 10, 1992
Process for producing 1,4-dihydroxy-2-arylnaphthoate
SUMITOMO CHEMICAL CO1 citations51
US4719037AJan 12, 1988
Piperidine derivatives, production process therefor, and stabilizers for organic substances containing said derivatives as an active component
SUMITOMO CHEMICAL CO1 citations51
US4695407ASep 22, 1987
Method for purifying 1-aminoanthraquinone
SUMITOMO CHEMICAL CO1 citations48