Inventor · disambiguated record
Shinichi Yachigo
Also filed as: YACHIGO SHINICHI
57 granted patents·846 citations·filing 1981–1995
99Inventor score
Top patents by PatentIndex Score
57 records- 0196US4511491AStabilizers for synthetic resinsSUMITOMO CHEMICAL CO·Filed 1983·Granted Apr 16, 1985·67 cites·12 claims
- 0295US5362794ARubber composition having excellent gripping power and rolling resistance, and production thereofSUMITOMO CHEMICAL CO·Filed 1993·Granted Nov 8, 1994·70 cites·13 claims
- 0391US5109055ARubber composition having excellent dynamic propertiesSUMITOMO CHEMICAL CO·Filed 1990·Granted Apr 28, 1992·45 cites·18 claims
- 0491US4562281AProduction of bisphenol derivativesSUMITOMO CHEMICAL CO·Filed 1983·Granted Dec 31, 1985·30 cites·12 claims
- 0588US4525514AStabilizer for polymeric substance and polymeric substance composition containing the sameSUMITOMO CHEMICAL CO·Filed 1984·Granted Jun 25, 1985·37 cites·6 claims
- 0686US5128398APhenolic compound and its use as stabilizer for butadiene polymerSUMITOMO CHEMICAL CO·Filed 1990·Granted Jul 7, 1992·26 cites·20 claims
- 0785US4829112APolyolefin resin compositionSUMITOMO CHEMICAL CO·Filed 1987·Granted May 9, 1989·33 cites·7 claims
- 0884US5214193AProduction of bisphenol monoesterSUMITOMO CHEMICAL CO·Filed 1992·Granted May 25, 1993·24 cites·23 claims
- 0984US4985479AStabilized polyolefin compositionSUMITOMO CHEMICAL CO·Filed 1989·Granted Jan 15, 1991·30 cites·14 claims
- 1082US4670488APiperidine derivatives, their production and use as stabilizersSUMITOMO CHEMICAL CO·Filed 1985·Granted Jun 2, 1987·17 cites·14 claims
- 1180US5049604AProcess for producing piperidine derivative and stabilized resin composition containing said derivativeSUMITOMO CHEMICAL CO·Filed 1990·Granted Sep 17, 1991·22 cites·7 claims
- 1279US5017663AResin compositionSUMITOMO CHEMICAL CO·Filed 1990·Granted May 21, 1991·20 cites·2 claims
- 1378US4576734AStabilizer for synthetic resinsSUMITOMO CHEMICAL CO·Filed 1985·Granted Mar 18, 1986·24 cites·7 claims
- 1477US5428091AThermoplastic resin compositions comprising polyphenylene ether, polyolefins and dinitrodiaminesSUMITOMO CHEMICAL CO·Filed 1993·Granted Jun 27, 1995·26 cites·4 claims
- 1577US5182390AIsocyanuric acid derivative useful as a light stabilizerKYODO CHEMICAL COMPANY LIMITED·Filed 1991·Granted Jan 26, 1993·20 cites·2 claims
- 1675US4721744AStabilized polyurethane compositionsSUMITOMO CHEMICAL CO·Filed 1986·Granted Jan 26, 1988·21 cites·4 claims
- 1775US4485202AIsocyanuric acid ester stabilizerSUMITOMO CHEMICAL CO·Filed 1982·Granted Nov 27, 1984·8 cites·14 claims
- 1870US5214084AStabilized polypropylene resin compositionSUMITOMO CHEMICAL CO·Filed 1992·Granted May 25, 1993·23 cites·20 claims
- 1968US4769479AHydroxyphenylpropionic acid ester with novel crystalline structure and production thereofSUMITOMO CHEMICAL CO·Filed 1986·Granted Sep 6, 1988·6 cites·1 claims
- 2067US4578472A2,2,6,6-Tetramethylpiperidine and its productionSUMITOMO CHEMICAL CO·Filed 1984·Granted Mar 25, 1986·14 cites·18 claims
- 2166US4739080APurification of hydroxyphenylpropionic acid esterSUMITOMO CHEMICAL CO·Filed 1986·Granted Apr 19, 1988·7 cites·5 claims
- 2265US4725634AStabilizer for synthetic resinsSUMITOMO CHEMICAL CO·Filed 1986·Granted Feb 16, 1988·14 cites·3 claims
- 2365US4578410APiperidine derivatives, their production and stabilized polymer compositions containing sameSUMITOMO CHEMICAL CO·Filed 1984·Granted Mar 25, 1986·13 cites·20 claims
- 2464US5281646AProduction of thermoplastic resin having high impact resistanceSUMITOMO CHEMICAL CO·Filed 1992·Granted Jan 25, 1994·15 cites·20 claims
- 2564US4717745AStabilized polyacetal resin compositionsSUMITOMO CHEMICAL CO·Filed 1986·Granted Jan 5, 1988·13 cites·4 claims
- 2663US4719257APolyolefin resin compositionSUMITOMO CHEMICAL CO·Filed 1986·Granted Jan 12, 1988·13 cites·4 claims
- 2762US4448915AAcetylene carbamide derivatives, processes for their production, and antioxidants for organic substances which comprise such derivatives as active ingredientsSUMITOMO CHEMICAL CO·Filed 1982·Granted May 15, 1984·4 cites·22 claims
- 2861US4385143AStabilizer for synthetic resinsSUMITOMO CHEMICAL CO·Filed 1981·Granted May 24, 1983·14 cites·35 claims
- 2960US5300568AThermoplastic resin compositionSUMITOMO CHEMICAL CO·Filed 1990·Granted Apr 5, 1994·14 cites·17 claims
- 3060US4754045AMethod for producing hydroxyphenylpropionic acid esterSUMITOMO CHEMICAL CO·Filed 1986·Granted Jun 28, 1988·5 cites·4 claims
- 3160US4732923AButadiene polymer compositionSUMITOMO CHEMICAL CO·Filed 1986·Granted Mar 22, 1988·12 cites·4 claims
- 3260US4507417AStabilizers for synthetic resinsSUMITOMO CHEMICAL CO·Filed 1983·Granted Mar 26, 1985·11 cites·5 claims
- 3358US5191003ARubber compositionSUMITOMO CHEMICAL CO·Filed 1991·Granted Mar 2, 1993·10 cites·18 claims
- 3457US5250593AStabilized polyolefin compositionSUMITOMO CHEMICAL CO·Filed 1992·Granted Oct 5, 1993·10 cites·17 claims
- 3557US5070151AResin compositionSUMITOMO CHEMICAL CO·Filed 1991·Granted Dec 3, 1991·12 cites·9 claims
- 3657US4721792AN,N',N",N'"-tetrakis(substituted benzyl)-acetylenecarbamide derivativesSUMITOMO CHEMICAL CO·Filed 1986·Granted Jan 26, 1988·10 cites·2 claims
- 3756US5045581AButadiene polymer composition containing phenolic compound and phosphorus-containing compoundSUMITOMO CHEMICAL CO·Filed 1988·Granted Sep 3, 1991·10 cites·16 claims
- 3855US5322947AProcess for producing N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)alkanediamineSUMITOMO CHEMICAL CO·Filed 1993·Granted Jun 21, 1994·5 cites·4 claims
- 3954US4939196AHydroquinone type compound and its use as stabilizer for synthetic resinSUMITOMO CHEMICAL CO·Filed 1988·Granted Jul 3, 1990·4 cites·20 claims
- 4054US4845244AProduction of hydroxyphenylpropionic acid ester having a novel crystalline structureSUMITOMO CHEMICAL CO·Filed 1988·Granted Jul 4, 1989·3 cites·9 claims
- 4154US4539355APhosphorus-containing compounds, their production and their use as antioxidantsSUMITOMO CHEMICAL CO·Filed 1983·Granted Sep 3, 1985·8 cites·7 claims
- 4250US5047461AButadiene polymer composition contains phenolic compound and sulfur-containing compoundSUMITOMO CHEMICAL CO·Filed 1988·Granted Sep 10, 1991·8 cites·15 claims
- 4350US5019615APolyphenylene ether/polyester blend with nitrodiamine compoundSUMITOMO CHEMICAL CO·Filed 1990·Granted May 28, 1991·10 cites·10 claims
- 4448US5369143AInorganic fiber having modified surface and its use for reinforcement of resinsSUMITOMO CHEMICAL CO·Filed 1993·Granted Nov 29, 1994·8 cites·17 claims
- 4547US4670489APiperidine derivatives, their production and use as stabilizersSUMITOMO CHEMICAL CO·Filed 1985·Granted Jun 2, 1987·9 cites·22 claims
- 4645US5506286AMethod for stabilizing an organic material using a hindered piperidine compoundSUMITOMO CHEMICAL CO·Filed 1994·Granted Apr 9, 1996·4 cites·34 claims
- 4745US5384348AHindered piperidine stabilizers and production thereofSUMITOMO CHEMICAL CO·Filed 1993·Granted Jan 24, 1995·4 cites·35 claims
- 4841US4812494AStabilized styrene polymerSUMITOMO CHEMICAL CO·Filed 1987·Granted Mar 14, 1989·5 cites·14 claims
- 4940US5981638AThermoplastic resin compositionSUMITOMO CHEMICAL CO·Filed 1993·Granted Nov 9, 1999·4 cites·6 claims
- 5040US5714612AHindered piperidine stabilizers and production thereofSUMITOMO CHEMICAL CO·Filed 1995·Granted Feb 3, 1998·4 cites·34 claims
Showing the top 50 of 57 patent records by PatentIndex Score.
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