Inventor · disambiguated record
Tohru Haruna
Also filed as: HARUNA TOHRU · MINAGAWA MOTONOBU · NAKAHARA YUTAKA
33 granted patents·443 citations·filing 1976–2002
97Inventor score
Files withADEKA ARGUS CHEMICAL CO LTD14ARGUS CHEM11ASAHI DENKA KOGYO KK5HITACHI CHEMICAL CO LTD1MINAGAWA MOTONOBU1
Top patents by PatentIndex Score
33 records- 0197US4463113ABis-phenol phosphates as clarifiers for polyolefin resinsNAKAHARA YUTAKA·Filed 1982·Granted Jul 31, 1984·123 cites·32 claims
- 0293US4619958AMixed 2,2,6,6-tetramethyl piperidinyl carboxylic acid ester and amide light stabilizers and stabilized synthetic polymersADEKA ARGUS CHEMICAL CO LTD·Filed 1983·Granted Oct 28, 1986·31 cites·24 claims
- 0385US5077328APolyolefin resin compositionASAHI DENKA KOGYO KK·Filed 1991·Granted Dec 31, 1991·31 cites·14 claims
- 0482US4226991AProcess for preparing 3-alkylthiopropionic acid estersARGUS CHEM·Filed 1978·Granted Oct 7, 1980·28 cites·12 claims
- 0577US4670492ACyclic bis and tris phosphites and stabilized synthetic resin compositionsADEKA ARGUS CHEMICAL CO LTD·Filed 1985·Granted Jun 2, 1987·14 cites·21 claims
- 0676US7018570B2Ultraviolet absorber composition and resin composition stabilized therewithASAHI DENKA KOGYO KK·Filed 2002·Granted Mar 28, 2006·11 cites·16 claims
- 0774US4104217ACarbonate ester stabilizers for polymersARGUS CHEM·Filed 1977·Granted Aug 1, 1978·16 cites·17 claims
- 0873US4529760AOligomers of 2,2,6,6-tetramethylpiperidinol polycarboxylic acid esters and synthetic polymer compositionsADEKA ARGUS CHEMICAL CO LTD·Filed 1983·Granted Jul 16, 1985·22 cites·44 claims
- 0973US4349468AStabilizer for polyolefin resinADEKA ARGUS CHEMICAL CO LTD·Filed 1980·Granted Sep 14, 1982·19 cites·10 claims
- 1067US4321191AStabilized composition comprising a dihydric alcohol thiodipropionic acid esterARGUS CHEM·Filed 1979·Granted Mar 23, 1982·12 cites·13 claims
- 1164US4293472AStabilized synthetic resin compositionMINAGAWA MOTONOBU·Filed 1979·Granted Oct 6, 1981·6 cites·18 claims
- 1262US4481317AHindered bisphenol diphosphonites and stabilized synthetic resin compositions containing the sameADEKA ARGUS CHEMICAL CO LTD·Filed 1983·Granted Nov 6, 1984·12 cites·38 claims
- 1361US4999393APhosphonite compound and synthetic resin compositionADEKA ARGUS CHEMICAL CO LTD·Filed 1989·Granted Mar 12, 1991·6 cites·10 claims
- 1461US4885326AComposition of stabilized synthetic resinADEKA ARGUS CHEMICAL CO LTD·Filed 1989·Granted Dec 5, 1989·13 cites·1 claims
- 1560US4469828AAlkylthiopropionyl hydrazino triazines and synthetic resin compositionsADEKA ARGUS CHEMICAL CO LTD·Filed 1982·Granted Sep 4, 1984·4 cites·24 claims
- 1659US4239803AEthylene polymer compositionARGUS CHEM·Filed 1977·Granted Dec 16, 1980·14 cites·18 claims
- 1757US5039723AStabilized synthetic resin compositionADEKA ARGUS CHEMICAL CO LTD·Filed 1989·Granted Aug 13, 1991·10 cites·24 claims
- 1856US5055507ASynthetic resins and stabilizer compositions for synthetic resin compositions containing the sameASAHI DENKA KOGYO KK·Filed 1990·Granted Oct 8, 1991·9 cites·26 claims
- 1956US4219463AStabilizers for synthetic polymers comprising 2,2,6,6-tetramethyl-4-piperidyl carboxylic acid ester, β-thioalkyl propionic acid ester and phenolARGUS CHEM·Filed 1977·Granted Aug 26, 1980·8 cites·36 claims
- 2056US4105629ASynthetic resin stabilizer comprising a thioether ester and hindered phenolic carbonateARGUS CHEM·Filed 1976·Granted Aug 8, 1978·8 cites·18 claims
- 2155US4418196AProcess for preparing triacetone amineADEKA ARGUS CHEMICAL CO LTD·Filed 1982·Granted Nov 29, 1983·3 cites·16 claims
- 2250US4912156APolyolefin compositionADEKA ARGUS CHEMICAL CO LTD·Filed 1988·Granted Mar 27, 1990·8 cites·3 claims
- 2348US4894400AStabilized synthetic polymer compositionADEKA ARGUS CHEMICAL CO LTD·Filed 1988·Granted Jan 16, 1990·7 cites·3 claims
- 2446US5112891APolycarbonate resin compositionASAHI DENKA KOGYO KK·Filed 1990·Granted May 12, 1992·6 cites·10 claims
- 2545US4663459AMethod for preparing 2,2,6,6-tetramethyl-4-oxopiperidineADEKA ARGUS CHEMICAL CO LTD·Filed 1985·Granted May 5, 1987·2 cites·17 claims
- 2645US4107136ASynthetic resin stabilizer comprising an organic phosphite and a carbonateARGUS CHEM·Filed 1976·Granted Aug 15, 1978·7 cites·19 claims
- 2743US5238979ASynthetic resins and stabilizer compositions for synthetic resin compositions containing the sameASAHI DENKA KOGYO KK·Filed 1990·Granted Aug 24, 1993·5 cites·28 claims
- 2838US4257927AInorganic organic coester stabilizersARGUS CHEM·Filed 1978·Granted Mar 24, 1981·2 cites·20 claims
- 2936US4174297APolyhydric phenol coester stabilizersARGUS CHEM·Filed 1976·Granted Nov 13, 1979·2 cites·13 claims
- 3033US6103828AMacromolecular material composition and a modifier for macromolecular materialHITACHI CHEMICAL CO LTD·Filed 1998·Granted Aug 15, 2000·2 cites·11 claims
- 3133US4146517AInorganic and organic acid coester stabilizersARGUS CHEM·Filed 1977·Granted Mar 27, 1979·2 cites·14 claims
- 3230US4661597AProcess for preparing 2,2,6,6-tetramethyl-4-oxopiperidineADEKA ARGUS CHEMICAL CO LTD·Filed 1985·Granted Apr 28, 1987·0 cites·17 claims
- 3330US4233414APolyhydric phenol coester stabilizersARGUS CHEM·Filed 1979·Granted Nov 11, 1980·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →