Assignee
TONEN SEKIYUKAGAKU KK
JP·70 granted patents·13 pending applications·1,966 citations·filing 1982–2008
Top patents by PatentIndex Score
83 records- 0196US6566012B1Polyolefin microporous film and method for preparing the sameTONEN SEKIYUKAGAKU KK·Filed 2000·Granted May 20, 2003·96 cites·16 claims
- 0295US6245272B1Polyolefin microporous film and method for preparing the sameTONEN SEKIYUKAGAKU KK·Filed 2000·Granted Jun 12, 2001·102 cites·3 claims
- 0393US4833181APolyolefin composition containing cellulose fibers and a deodorizerTONEN SEKIYUKAGAKU KK·Filed 1987·Granted May 23, 1989·64 cites·18 claims
- 0490US5922492AMicroporous polyolefin battery separatorTONEN SEKIYUKAGAKU KK·Filed 1997·Granted Jul 13, 1999·111 cites·5 claims
- 0590US5621046APolypropylene resin compositionTONEN SEKIYUKAGAKU KK·Filed 1995·Granted Apr 15, 1997·74 cites·3 claims
- 0690US4467061AWeather resistant polyolefin compositionTONEN SEKIYUKAGAKU KK·Filed 1982·Granted Aug 21, 1984·45 cites·11 claims
- 0789US6666969B1Microporous polyolefin film and process for producing the sameTONEN SEKIYUKAGAKU KK·Filed 1999·Granted Dec 23, 2003·62 cites·12 claims
- 0888US5609947ALaminated non-woven fabric filtering medium and method for producing sameTONEN SEKIYUKAGAKU KK·Filed 1995·Granted Mar 11, 1997·74 cites·7 claims
- 0988US4945127APolymer composition, its heat-resistant, shape memory formed product and method of producing sameTONEN SEKIYUKAGAKU KK·Filed 1988·Granted Jul 31, 1990·41 cites·7 claims
- 1088US4940270AAutomobile bumperTONEN SEKIYUKAGAKU KK·Filed 1989·Granted Jul 10, 1990·63 cites·4 claims
- 1188US4878974AMethod of producing a gas-permeable, waterproof composite sheetTONEN SEKIYUKAGAKU KK·Filed 1989·Granted Nov 7, 1989·73 cites·24 claims
- 1286US7700182B2Microporous polyolefin membrane, its production method, and battery separatorTONEN SEKIYUKAGAKU KK·Filed 2006·Granted Apr 20, 2010·8 cites·18 claims
- 1385US7807287B2Multi-layer, microporous membrane, battery separator and batteryTONEN SEKIYUKAGAKU KK·Filed 2006·Granted Oct 5, 2010·6 cites·57 claims
- 1484US6153133AMethod of producing highly permeable microporous polyolefin membraneTONEN SEKIYUKAGAKU KK·Filed 1998·Granted Nov 28, 2000·67 cites·6 claims
- 1584US5853633AMethod of producing microporous thermoplastic resin membraneTONEN SEKIYUKAGAKU KK·Filed 1996·Granted Dec 29, 1998·60 cites·7 claims
- 1684US5091435ACross-linkable, foamable polyolefin resin compositionTONEN SEKIYUKAGAKU KK·Filed 1991·Granted Feb 25, 1992·42 cites·4 claims
- 1784US5057252AMethod of producing heat-resistant and shape memory formed productsTONEN SEKIYUKAGAKU KK·Filed 1990·Granted Oct 15, 1991·38 cites·15 claims
- 1882US4990550AFiber-reinforced polymer composition and method of producing sameTONEN SEKIYUKAGAKU KK·Filed 1989·Granted Feb 5, 1991·34 cites·18 claims
- 1981US7815825B2Microporous polyolefin membrane, and method of producing the sameTONEN SEKIYUKAGAKU KK·Filed 2008·Granted Oct 19, 2010·7 cites·8 claims
- 2081US5021504AThermoplastic polyolefin-polycarbonate compositionTONEN SEKIYUKAGAKU KK·Filed 1988·Granted Jun 4, 1991·32 cites·58 claims
- 2180US5786396AMethod of producing microporous polyolefin membraneTONEN SEKIYUKAGAKU KK·Filed 1997·Granted Jul 28, 1998·58 cites·5 claims
- 2280US5342920AProcess for the preparation of polyarylene sulfide and an apparatus for the preparation thereofTONEN SEKIYUKAGAKU KK·Filed 1992·Granted Aug 30, 1994·44 cites·5 claims
- 2378US5830554AMethod of producing of microporous polyolefin membraneTONEN SEKIYUKAGAKU KK·Filed 1996·Granted Nov 3, 1998·58 cites·9 claims
- 2478US5789533APolyarylene sulfide, a process for the preparation thereof and a composition comprising the sameTONEN SEKIYUKAGAKU KK·Filed 1996·Granted Aug 4, 1998·36 cites·20 claims
- 2578US4801651AMethod of manufacture of thermoplastic elastomer compoundsTONEN SEKIYUKAGAKU KK·Filed 1987·Granted Jan 31, 1989·24 cites·1 claims
- 2676US7872086B2Polymeric material and its manufacture and useTONEN SEKIYUKAGAKU KK·Filed 2008·Granted Jan 18, 2011·2 cites·16 claims
- 2775US6824865B1Microporous polyolefin film and process for producing the sameTONEN SEKIYUKAGAKU KK·Filed 1999·Granted Nov 30, 2004·37 cites·13 claims
- 2873US5123688AAutomobile bumper having smooth surface and manufactured by a blow molding processTONEN SEKIYUKAGAKU KK·Filed 1991·Granted Jun 23, 1992·29 cites·2 claims
- 2973US4857230AStabilizing composition for polyolefinsTONEN SEKIYUKAGAKU KK·Filed 1988·Granted Aug 15, 1989·21 cites·9 claims
- 3072US7781094B2Microporous composite membrane and its production method and useTONEN SEKIYUKAGAKU KK·Filed 2004·Granted Aug 24, 2010·10 cites·1 claims
- 3172US7479243B2Microporous polyolefin membrane, and method of producing the sameTONEN SEKIYUKAGAKU KK·Filed 2003·Granted Jan 20, 2009·13 cites·2 claims
- 3272US6887944B2Modified polypropylene and process for producing sameTONEN SEKIYUKAGAKU KK·Filed 2003·Granted May 3, 2005·12 cites·4 claims
- 3370US5177043Aα-olefin polymerization catalyst componentTONEN SEKIYUKAGAKU KK·Filed 1990·Granted Jan 5, 1993·37 cites·3 claims
- 3470US5106564AMethod of and apparatus for making fiber-reinforced polymer compositionsTONEN SEKIYUKAGAKU KK·Filed 1991·Granted Apr 21, 1992·27 cites·6 claims
- 3569US5777069AMethod of maufacturing a tubular extrusion molding product comprising a high molecular weight polyarylene sulfideTONEN SEKIYUKAGAKU KK·Filed 1996·Granted Jul 7, 1998·22 cites·7 claims
- 3669US5075152APolyethylene composite film and labelTONEN SEKIYUKAGAKU KK·Filed 1991·Granted Dec 24, 1991·40 cites·5 claims
- 3768US6762146B2Vanadium phosphorous mixed oxideTONEN SEKIYUKAGAKU KK·Filed 2001·Granted Jul 13, 2004·9 cites·4 claims
- 3868US5945490APolyarylene sulfide and a composition thereofTONEN SEKIYUKAGAKU KK·Filed 1997·Granted Aug 31, 1999·21 cites·15 claims
- 3968US5227233APolyethylene label and method of preparation thereofTONEN SEKIYUKAGAKU KK·Filed 1991·Granted Jul 13, 1993·26 cites·4 claims
- 4066US5475081AProcess for controlling a particle size of polyarylene sulfide and polyarylene sulfide thus producedTONEN SEKIYUKAGAKU KK·Filed 1993·Granted Dec 12, 1995·15 cites·19 claims
- 4166US5384172AMulti-layer plastic fuel tankTONEN SEKIYUKAGAKU KK·Filed 1993·Granted Jan 24, 1995·40 cites·5 claims
- 4263US6495486B1Intercalation compound and a vanadium phosphorus mixed oxide and a process for the preparation thereofTONEN SEKIYUKAGAKU KK·Filed 2000·Granted Dec 17, 2002·6 cites·16 claims
- 4362US4906683AThermoplastic elastomer compositionTONEN SEKIYUKAGAKU KK·Filed 1987·Granted Mar 6, 1990·16 cites·1 claims
- 4461US4960823AResin composition for bumpersTONEN SEKIYUKAGAKU KK·Filed 1990·Granted Oct 2, 1990·17 cites·1 claims
- 4560US8026005B2Microporous polyolefin membrane, its production method, battery separator, and batteryTONEN SEKIYUKAGAKU KK·Filed 2007·Granted Sep 27, 2011·0 cites·5 claims
- 4658US5880198AThermoplastic resin composition comprising propylene elastomer, and talc componentsTONEN SEKIYUKAGAKU KK·Filed 1997·Granted Mar 9, 1999·19 cites·7 claims
- 4758US5185203AHeat-sealable crosslinked oriented polyethylene film and production thereofTONEN SEKIYUKAGAKU KK·Filed 1989·Granted Feb 9, 1993·29 cites·2 claims
- 4854US5045620AOriented polyethylene film and production thereofTONEN SEKIYUKAGAKU KK·Filed 1989·Granted Sep 3, 1991·16 cites·3 claims
- 4954US2010151310A1Microporous polyethylene membrane, its production method and battery separatorTONEN SEKIYUKAGAKU KK·Filed 2006·Application pending·0 cites
- 5052US5216054APolymer compositionTONEN SEKIYUKAGAKU KK·Filed 1992·Granted Jun 1, 1993·12 cites·3 claims
Showing the top 50 of 83 patent records by PatentIndex Score.
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