Inventor
KUBOTA NAOHIRO
52 patents
⚠️ This page may combine multiple inventors who share the name “KUBOTA NAOHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ARGUS CHEM
23 patentsUS4110306AAug 29, 1978
Stabilizers for synthetic polymers comprising 2,2,6,6-tetramethyl-4-piperidyl carboxylic acid ester, a triphosphite, and an acid phosphite or salt thereof
ARGUS CHEM45 citations93
US4096114AJun 20, 1978
2,2,6,6-Tetramethyl piperidyl-4-phosphites as stabilizers for organic polymeric materials
ARGUS CHEM36 citations92
US4255301AMar 10, 1981
Glycol carbonate ester stabilizers for synthetic resins
ARGUS CHEM27 citations82
US4124564ANov 7, 1978
Synthetic resin stabilizer comprising a 2,2,6,6-tetramethylpiperidine-4-alcohol ester and an oligomeric carbonate
ARGUS CHEM19 citations82
US4118369AOct 3, 1978
2,2,6,6-Tetrasubstituted-4-piperidyl carboxy heterocyclic compounds as stabilizers for synthetic polymers
ARGUS CHEM22 citations82
US4102858AJul 25, 1978
2,2,6,6-tetramethyl-4-piperidyl thiocarboxylates and aminocarboxylates and synthetic resin compositions containing the same
ARGUS CHEM24 citations82
US4250312AFeb 10, 1981
Process for preparing 4-piperidone spiroketal compounds
ARGUS CHEM8 citations74
US4222931ASep 16, 1980
Stabilizers for synthetic polymers comprising 2,2,6,6-tetramethyl-4-piperidyl ether alcohol or ether, phosphonic acid ester and phenolic antioxidant
ARGUS CHEM10 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
US4210577AJul 1, 1980
Stabilizers for synthetic polymers comprising 2,2,6,6-tetramethyl-4-piperidyl carboxylic acid ester, phosphonic acid ester and phenol
ARGUS CHEM13 citations74
US4136081AJan 23, 1979
2,2,6,6-tetramethyl-4-piperidyl carboxylic acid esters of aliphatic tetracarboxylic acids as stabilizers for synthetic polymers
ARGUS CHEM17 citations74
US4128608ADec 5, 1978
2,2,6,6-Tetramethyl-4-piperidyl spiro aliphatic ethers as stabilizers for synthetic polymers
ARGUS CHEM12 citations74
US4116927ASep 26, 1978
2,2,6,6-Tetramethyl-4-piperidyl carboxylic acid esters of butane or butene tri carboxylic acids as stabilizers for synthetic polymers
ARGUS CHEM8 citations74
US4115476ASep 19, 1978
2,2,6,6-Tetramethyl-4-piperidyl carbonic acid esters of dihydric alcohols and phenols as stabilizers for synthetic polymers
ARGUS CHEM17 citations74
US4105625AAug 8, 1978
2,2,6,6-tetramethyl-4-piperidyl carboxylic acid esters of hydroxy aliphatic di- and tri-carboxylic acids as light stabilizers for synthetic polymers
ARGUS CHEM9 citations74
US4101508AJul 18, 1978
2,2,6,6-Tetramethyl-4-piperidyl bicyclic heptane and octane carboxylic acid esters as stabilizers for synthetic polymers
ARGUS CHEM8 citations74
US4186151AJan 29, 1980
Process for preparing a 5,5'-methylenebis(2-hydroxy-4-alkoxybenzophenone)
ARGUS CHEM10 citations73
US4169089ASep 25, 1979
Hydroxybenzophenone stabilizer composition
ARGUS CHEM9 citations73
US4312804AJan 26, 1982
2,2,6,6-Tetraalkyl-4-piperidyl alcohol esters of tetradecylene polycarboxylic acids as light stabilizers for synthetic polymers
ARGUS CHEM4 citations63
US4250313AFeb 10, 1981
Process for preparing 4-piperidone spiroketal compounds
ARGUS CHEM4 citations63
US4189409AFeb 19, 1980
Process for preparing a methylenebis(2-hydroxy-4-alkoxybenzophenone) and acyloxymethyl 2-OH 4-alkoxy benzophenones
ARGUS CHEM3 citations63
US4173599ANov 6, 1979
2,2,6,6-Tetraalkyl-4-piperidyl ketones and ketals as stabilizers for synthetic polymers
ARGUS CHEM3 citations63
US4252958AFeb 24, 1981
Process for preparing 2,2,6,6-Tetramethyl-4-oxopiperidine
ARGUS CHEM5 citations62
ADEKA ARGUS CHEMICAL CO LTD
15 patentsUS4681905AJul 21, 1987
Stabilizer compositions for synthetic resins imparting improved light stability
ADEKA ARGUS CHEMICAL CO LTD105 citations96
US4684679AAug 4, 1987
Polyacetal resin compositions having improved resistance to deterioration when exposed to light and containing alkylidene bis(benzotriazolyl phenols)
ADEKA ARGUS CHEMICAL CO LTD34 citations93
US4336183AJun 22, 1982
2,2,6,6-Tetramethyl-4-piperidyl carboxylic acid esters and amides of mono and poly alcohols, phenols and amines as stabilizers for synthetic polymers
ADEKA ARGUS CHEMICAL CO LTD44 citations93
US4396735AAug 2, 1983
Synergistic light stabilizer compositions for synthetic resins and resin compositions containing the same
ADEKA ARGUS CHEMICAL CO LTD26 citations82
US4937348AJun 26, 1990
Process for preparing 2,2'-methylene-bis-(4-hydrocarbyl-6-benzotriazolylphenols)
ADEKA ARGUS CHEMICAL CO LTD17 citations74
US4684680AAug 4, 1987
Thermosetting synthetic resin lacquer compositions having improved light stability
ADEKA ARGUS CHEMICAL CO LTD15 citations74
US4405736ASep 20, 1983
2,2,6,6-Tetramethyl-4-piperidyl spiro aliphatic ethers and stabilizers for synthetic polymers
ADEKA ARGUS CHEMICAL CO LTD14 citations73
US4404301ASep 13, 1983
Polymeric light stabilizers having at least one 2,2,6,6-tetraalkyl piperidyl group and synthetic resin compositions containing the same
ADEKA ARGUS CHEMICAL CO LTD15 citations73
US4351915ASep 28, 1982
2,2,6,6-Tetramethyl-4-piperidyl spiro aliphatic ethers as stabilizers for synthetic polymers
ADEKA ARGUS CHEMICAL CO LTD11 citations70
US4499220AFeb 12, 1985
Copolymer light stabilizers having at least one 2,2,6,6-tetraalkyl piperidyl group and synthetic resin compositions containing the same
ADEKA ARGUS CHEMICAL CO LTD6 citations63
US4378443AMar 29, 1983
2,2,6,6-Tetraalkyl-4-piperidyl-bix-spiro-ethers as light stabilizers for synthetic polymers
ADEKA ARGUS CHEMICAL CO LTD4 citations63
US4500663AFeb 19, 1985
Light stabilizing N,N,N-tris(2,2,6,6-tetramethyl-4-piperidone ketal)-1,3,5-triazine derivatives and light stabilized synthetic resin compositions
ADEKA ARGUS CHEMICAL CO LTD2 citations62
US4423174ADec 27, 1983
Synthetic resin compositions containing 2,2,6,6-tetramethyl piperidyl ethers
ADEKA ARGUS CHEMICAL CO LTD3 citations62
US4418196ANov 29, 1983
Process for preparing triacetone amine
ADEKA ARGUS CHEMICAL CO LTD3 citations62
US4405737ASep 20, 1983
N-2-Hydroxypropyl piperidines and compositions thereof
ADEKA ARGUS CHEMICAL CO LTD5 citations61
ASAHI DENKA KOGYO KK
3 patentsUS5071888ADec 10, 1991
Carbazole photoinitiators for the photopolymerization of unsaturated compounds
ASAHI DENKA KOGYO KK25 citations93
US5089377AFeb 18, 1992
Photopolymerizable composition and processes using acridine photoinitiators
ASAHI DENKA KOGYO KK5 citations72
US6117487ASep 12, 2000
Process for forming metal oxide film by means of CVD system
ASAHI DENKA KOGYO KK6 citations61
DENSO CORP
3 patentsUS6566015B1May 20, 2003
Non-aqueous electrolytic salt and non-aqueous electrolytic secondary battery in which it is used
DENSO CORP32 citations92
US6872493B2Mar 29, 2005
Nonaqueous electrolytic solution and nonaqueous secondary battery
DENSO CORP44 citations91
US6210840B1Apr 3, 2001
Flame-retardant electrolytic solution and nonaqueous secondary battery containing the same
DENSO CORP36 citations90
HITACHI CHEMICAL CO LTD
3 patentsUS5334484AAug 2, 1994
Photopolymerizable composition and photopolymerizable element
HITACHI CHEMICAL CO LTD11 citations73
US5045433ASep 3, 1991
Substituted acridine derivatives and application thereof
HITACHI CHEMICAL CO LTD8 citations72
US4985564AJan 15, 1991
Acridine compound and photopolymerizable composition using the same
HITACHI CHEMICAL CO LTD6 citations72
ASAHI DENKA CO LTD
1 patentLEISTNER WILLIAM E
1 patentKUBOTA NAOHIRO
1 patentShowing the top 50 of 52 patents by PatentIndex Score.