Assignee
JAPAN STYRENE PAPER CORP
JP·46 granted patents·1,309 citations·filing 1979–1992
Top patents by PatentIndex Score
46 records- 0196US4464484AProcess for producing prefoamed polymer particlesJAPAN STYRENE PAPER CORP·Filed 1983·Granted Aug 7, 1984·97 cites·10 claims
- 0295US4504534ACore material for automobile bumpersJAPAN STYRENE PAPER CORP·Filed 1984·Granted Mar 12, 1985·74 cites·3 claims
- 0393US4379859APre-foamed particles of polypropylene resin and process for production thereofJAPAN STYRENE PAPER CORP·Filed 1981·Granted Apr 12, 1983·95 cites·9 claims
- 0490US4704239AProcess for the production of expanded particles of a polymeric materialJAPAN STYRENE PAPER CORP·Filed 1985·Granted Nov 3, 1987·66 cites·24 claims
- 0589US4440703AProcess for producing foamed and molded article of polypropylene resinJAPAN STYRENE PAPER CORP·Filed 1982·Granted Apr 3, 1984·49 cites·2 claims
- 0688US4707569AMulti-conductor cableJAPAN STYRENE PAPER CORP·Filed 1986·Granted Nov 17, 1987·71 cites·4 claims
- 0787US4443393AMethod of pressurizing treatment of pre-foamed particles of polyolefin resinJAPAN STYRENE PAPER CORP·Filed 1982·Granted Apr 17, 1984·44 cites·2 claims
- 0886US4777000AProduction method of expansion-molded article of polypropylene resinJAPAN STYRENE PAPER CORP·Filed 1986·Granted Oct 11, 1988·47 cites·9 claims
- 0985US4649001AProcess for producing polyethylene extruded foamsJAPAN STYRENE PAPER CORP·Filed 1985·Granted Mar 10, 1987·51 cites·9 claims
- 1085US4399087AProcess for producing foamed polyolefin articles from aged pre-foamed particles of polyolefin resinsJAPAN STYRENE PAPER CORP·Filed 1981·Granted Aug 16, 1983·57 cites·6 claims
- 1184US4840973APolypropylene resin prefoamed particlesJAPAN STYRENE PAPER CORP·Filed 1987·Granted Jun 20, 1989·43 cites·3 claims
- 1281US4822542AMethod of production of expansion-molded article, from foamable thermoplastic resin particles and apparatus thereforJAPAN STYRENE PAPER CORP·Filed 1987·Granted Apr 18, 1989·47 cites·18 claims
- 1381US4436840AProcess for producing pre-foamed particles of polyolefin resinJAPAN STYRENE PAPER CORP·Filed 1982·Granted Mar 13, 1984·33 cites·2 claims
- 1479US4676939AProcess for the production of expanded particles of a polypropylene resinJAPAN STYRENE PAPER CORP·Filed 1985·Granted Jun 30, 1987·34 cites·9 claims
- 1579US4602082APropylene-base random copolymer particles and production process thereofJAPAN STYRENE PAPER CORP·Filed 1985·Granted Jul 22, 1986·30 cites·12 claims
- 1678US4324748AProcess and apparatus for extruding plastic foams through a fluorocarbon lined die shaping means having extended wear characteristicsJAPAN STYRENE PAPER CORP·Filed 1980·Granted Apr 13, 1982·37 cites·11 claims
- 1776US4598001ABumper core and process producing sameJAPAN STYRENE PAPER CORP·Filed 1984·Granted Jul 1, 1986·35 cites·10 claims
- 1872US4587270APreliminarily foamed particles of non-crosslinked polypropylene-type resinJAPAN STYRENE PAPER CORP·Filed 1984·Granted May 6, 1986·21 cites·5 claims
- 1971US4617323APrefoamed particles of crosslinked propylene-type resin and molded article prepared therefromJAPAN STYRENE PAPER CORP·Filed 1985·Granted Oct 14, 1986·27 cites·4 claims
- 2069US4756948ACore material for automobile bumpersJAPAN STYRENE PAPER CORP·Filed 1987·Granted Jul 12, 1988·33 cites·12 claims
- 2167US4948817APre-foamed particles of uncrosslinked, linear low-density polyethylene and production method thereofJAPAN STYRENE PAPER CORP·Filed 1988·Granted Aug 14, 1990·20 cites·1 claims
- 2266US4567208APreliminarily foamed particles of non-crosslinked polypropylene-type resinJAPAN STYRENE PAPER CORP·Filed 1984·Granted Jan 28, 1986·18 cites·6 claims
- 2365US4504601AProcess for producing pre-foamed particles of polypropylene resinJAPAN STYRENE PAPER CORP·Filed 1983·Granted Mar 12, 1985·24 cites·9 claims
- 2465US4451417AMethod of producing extruded plate-like polystyrene foamJAPAN STYRENE PAPER CORP·Filed 1982·Granted May 29, 1984·20 cites·3 claims
- 2558US4692507APropylene-base random copolymer particles and production process thereofJAPAN STYRENE PAPER CORP·Filed 1986·Granted Sep 8, 1987·13 cites·5 claims
- 2657US4716021AHeat treatment apparatus for polyolefin resin particlesJAPAN STYRENE PAPER CORP·Filed 1986·Granted Dec 29, 1987·15 cites·6 claims
- 2755US4889671AProduction method of prefoamed particles of polyolefin resinJAPAN STYRENE PAPER CORP·Filed 1988·Granted Dec 26, 1989·16 cites·6 claims
- 2855US4806293AMethod of producing a foamed, molded articleJAPAN STYRENE PAPER CORP·Filed 1987·Granted Feb 21, 1989·20 cites·5 claims
- 2955US4656197APre-foamed particles of polyethylene resinJAPAN STYRENE PAPER CORP·Filed 1986·Granted Apr 7, 1987·14 cites·7 claims
- 3055US4568608APre-foamed particles of polypropylene-base resinJAPAN STYRENE PAPER CORP·Filed 1985·Granted Feb 4, 1986·15 cites·6 claims
- 3155US4504653AProcess for producing polyolefin resin particlesJAPAN STYRENE PAPER CORP·Filed 1983·Granted Mar 12, 1985·11 cites·15 claims
- 3253US4769393AExpanded particles of modified polyethylene and foamed articles obtained therefromJAPAN STYRENE PAPER CORP·Filed 1986·Granted Sep 6, 1988·12 cites·19 claims
- 3352US4255371AProcess for producing olefinic resin foamsJAPAN STYRENE PAPER CORP·Filed 1979·Granted Mar 10, 1981·11 cites·7 claims
- 3451US4589845AApparatus for the preparation of a foamed article of a polyolefin resinJAPAN STYRENE PAPER CORP·Filed 1985·Granted May 20, 1986·16 cites·5 claims
- 3550US4415392AMethod for producing foamed plastic sheetJAPAN STYRENE PAPER CORP·Filed 1979·Granted Nov 15, 1983·14 cites·5 claims
- 3649US5015667APre-foamed beads of polyethylene base resinJAPAN STYRENE PAPER CORP·Filed 1988·Granted May 14, 1991·10 cites·18 claims
- 3749US4810316AProcess for producing a foamed base material for car ceiling memberJAPAN STYRENE PAPER CORP·Filed 1987·Granted Mar 7, 1989·15 cites·5 claims
- 3847US4749725AProduction process of pre-foamed particlesJAPAN STYRENE PAPER CORP·Filed 1986·Granted Jun 7, 1988·10 cites·19 claims
- 3944US4255110AApparatus for producing corrugated foamed plastic sheetJAPAN STYRENE PAPER CORP·Filed 1979·Granted Mar 10, 1981·9 cites·4 claims
- 4042US4674976AMethod for the preparation of a foamed article of a polyolefin resinJAPAN STYRENE PAPER CORP·Filed 1986·Granted Jun 23, 1987·11 cites·6 claims
- 4141US4600636ACore material for an automobile bumperJAPAN STYRENE PAPER CORP·Filed 1985·Granted Jul 15, 1986·5 cites·8 claims
- 4240US4657937AEnergy absorberJAPAN STYRENE PAPER CORP·Filed 1986·Granted Apr 14, 1987·6 cites·5 claims
- 4334US4393016AProcess for producing plate-like polystyrene resin foamJAPAN STYRENE PAPER CORP·Filed 1981·Granted Jul 12, 1983·4 cites·4 claims
- 4433US4260572AProcess for producing foamed polystyrene boardsJAPAN STYRENE PAPER CORP·Filed 1979·Granted Apr 7, 1981·3 cites·8 claims
- 4528US5281377AProcess for the production of foamed polyolefin sheetsJAPAN STYRENE PAPER CORP·Filed 1992·Granted Jan 25, 1994·4 cites·4 claims
- 4626US5281119AApparatus for the production of foamed polyolefin sheetsJAPAN STYRENE PAPER CORP·Filed 1992·Granted Jan 25, 1994·2 cites·4 claims
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