Inventor
HARUNA TOHRU
JP33 patents
⚠️ This page may combine multiple inventors who share the name “HARUNA TOHRU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ADEKA ARGUS CHEMICAL CO LTD
14 patentsUS4619958AOct 28, 1986
Mixed 2,2,6,6-tetramethyl piperidinyl carboxylic acid ester and amide light stabilizers and stabilized synthetic polymers
ADEKA ARGUS CHEMICAL CO LTD31 citations92
US4529760AJul 16, 1985
Oligomers of 2,2,6,6-tetramethylpiperidinol polycarboxylic acid esters and synthetic polymer compositions
ADEKA ARGUS CHEMICAL CO LTD22 citations82
US5039723AAug 13, 1991
Stabilized synthetic resin composition
ADEKA ARGUS CHEMICAL CO LTD10 citations74
US4999393AMar 12, 1991
Phosphonite compound and synthetic resin composition
ADEKA ARGUS CHEMICAL CO LTD6 citations74
US4894400AJan 16, 1990
Stabilized synthetic polymer composition
ADEKA ARGUS CHEMICAL CO LTD7 citations74
US4670492AJun 2, 1987
Cyclic bis and tris phosphites and stabilized synthetic resin compositions
ADEKA ARGUS CHEMICAL CO LTD14 citations74
US4481317ANov 6, 1984
Hindered bisphenol diphosphonites and stabilized synthetic resin compositions containing the same
ADEKA ARGUS CHEMICAL CO LTD12 citations74
US4349468ASep 14, 1982
Stabilizer for polyolefin resin
ADEKA ARGUS CHEMICAL CO LTD19 citations74
US4912156AMar 27, 1990
Polyolefin composition
ADEKA ARGUS CHEMICAL CO LTD8 citations73
US4885326ADec 5, 1989
Composition of stabilized synthetic resin
ADEKA ARGUS CHEMICAL CO LTD13 citations71
US4469828ASep 4, 1984
Alkylthiopropionyl hydrazino triazines and synthetic resin compositions
ADEKA ARGUS CHEMICAL CO LTD4 citations63
US4663459AMay 5, 1987
Method for preparing 2,2,6,6-tetramethyl-4-oxopiperidine
ADEKA ARGUS CHEMICAL CO LTD2 citations62
US4418196ANov 29, 1983
Process for preparing triacetone amine
ADEKA ARGUS CHEMICAL CO LTD3 citations62
US4661597AApr 28, 1987
Process for preparing 2,2,6,6-tetramethyl-4-oxopiperidine
ADEKA ARGUS CHEMICAL CO LTD0 citations51
ARGUS CHEM
11 patentsUS4226991AOct 7, 1980
Process for preparing 3-alkylthiopropionic acid esters
ARGUS CHEM28 citations78
US4321191AMar 23, 1982
Stabilized composition comprising a dihydric alcohol thiodipropionic acid ester
ARGUS CHEM12 citations74
US4219463AAug 26, 1980
Stabilizers for synthetic polymers comprising 2,2,6,6-tetramethyl-4-piperidyl carboxylic acid ester, β-thioalkyl propionic acid ester and phenol
ARGUS CHEM8 citations74
US4107136AAug 15, 1978
Synthetic resin stabilizer comprising an organic phosphite and a carbonate
ARGUS CHEM7 citations74
US4105629AAug 8, 1978
Synthetic resin stabilizer comprising a thioether ester and hindered phenolic carbonate
ARGUS CHEM8 citations74
US4104217AAug 1, 1978
Carbonate ester stabilizers for polymers
ARGUS CHEM16 citations74
US4239803ADec 16, 1980
Ethylene polymer composition
ARGUS CHEM14 citations73
US4257927AMar 24, 1981
Inorganic organic coester stabilizers
ARGUS CHEM2 citations63
US4174297ANov 13, 1979
Polyhydric phenol coester stabilizers
ARGUS CHEM2 citations63
US4146517AMar 27, 1979
Inorganic and organic acid coester stabilizers
ARGUS CHEM2 citations63
US4233414ANov 11, 1980
Polyhydric phenol coester stabilizers
ARGUS CHEM0 citations52
ASAHI DENKA KOGYO KK
5 patentsUS5077328ADec 31, 1991
Polyolefin resin composition
ASAHI DENKA KOGYO KK31 citations93
US7018570B2Mar 28, 2006
Ultraviolet absorber composition and resin composition stabilized therewith
ASAHI DENKA KOGYO KK11 citations84
US5055507AOct 8, 1991
Synthetic resins and stabilizer compositions for synthetic resin compositions containing the same
ASAHI DENKA KOGYO KK9 citations74
US5238979AAug 24, 1993
Synthetic resins and stabilizer compositions for synthetic resin compositions containing the same
ASAHI DENKA KOGYO KK5 citations63
US5112891AMay 12, 1992
Polycarbonate resin composition
ASAHI DENKA KOGYO KK6 citations62