Assignee
TOHO RAYON KK
JP·30 granted patents·873 citations·filing 1985–1999
Top patents by PatentIndex Score
30 records- 0191US5443859ACarbon film and process for preparing the sameTOHO RAYON KK·Filed 1994·Granted Aug 22, 1995·62 cites·24 claims
- 0291US5231162APolyamic acid having three-dimensional network molecular structure, polyimide obtained therefrom and process for the preparation thereofTOHO RAYON KK·Filed 1992·Granted Jul 27, 1993·63 cites·35 claims
- 0390US5030282ACarbon fiber-reinforced cementitious composite and method for producing the compositeTOHO RAYON KK·Filed 1989·Granted Jul 9, 1991·82 cites·21 claims
- 0487US6139956AMolding material and method for producing the sameTOHO RAYON KK·Filed 1999·Granted Oct 31, 2000·54 cites·18 claims
- 0585US4714648APrepregs and method for production thereofTOHO RAYON KK·Filed 1985·Granted Dec 22, 1987·35 cites·18 claims
- 0684US5227238ACarbon fiber chopped strands and method of production thereofTOHO RAYON KK·Filed 1991·Granted Jul 13, 1993·66 cites·14 claims
- 0783US4861809AFriction materialTOHO RAYON KK·Filed 1988·Granted Aug 29, 1989·27 cites·20 claims
- 0882US4962162AResin composition of thermosetting resin and thermoplastic resinTOHO RAYON KK·Filed 1987·Granted Oct 9, 1990·39 cites·12 claims
- 0981US5126017AProcess for producing electrically conductive polymer film by electrolytic polymerizationTOHO RAYON KK·Filed 1991·Granted Jun 30, 1992·30 cites·14 claims
- 1081US4891267ACarbon fiber cord for rubber reinforcement and process for producing the sameTOHO RAYON KK·Filed 1986·Granted Jan 2, 1990·31 cites·18 claims
- 1181US4883712ACarbon fiber cord for rubber reinforcementTOHO RAYON KK·Filed 1986·Granted Nov 28, 1989·32 cites·13 claims
- 1280US5438105APolyamic acid composite, polyimide composite and processes for producing the sameTOHO RAYON KK·Filed 1994·Granted Aug 1, 1995·28 cites·20 claims
- 1379US5352524ACarbon film and process for preparing the sameTOHO RAYON KK·Filed 1992·Granted Oct 4, 1994·26 cites·6 claims
- 1477US5284702ALow fuming phenolic resin prepreg and process for producing the sameTOHO RAYON KK·Filed 1991·Granted Feb 8, 1994·29 cites·20 claims
- 1576US6054177AMolding material and process for the production thereofTOHO RAYON KK·Filed 1996·Granted Apr 25, 2000·32 cites·9 claims
- 1675US5685525ACarbon fiber reinforced resin coil springTOHO RAYON KK·Filed 1994·Granted Nov 11, 1997·42 cites·4 claims
- 1771US4897286AMethod for producing carbon fiber reinforced thermoplastic resin productTOHO RAYON KK·Filed 1988·Granted Jan 30, 1990·25 cites·18 claims
- 1868US5167945AMethod for producing graphite fiberTOHO RAYON KK·Filed 1990·Granted Dec 1, 1992·19 cites·16 claims
- 1967US5840347AApparatus for making a cylindrical product of fiber reinforcement-thermoplastic resin compositeTOHO RAYON KK·Filed 1997·Granted Nov 24, 1998·25 cites·7 claims
- 2066US4820905ACarbonizing furnaceTOHO RAYON KK·Filed 1987·Granted Apr 11, 1989·16 cites·10 claims
- 2152US6287677B1Carbon fiber prepeg for wood reinforcement, wooden sheet laminated therewith, wood reinforcing composite comprising carbon fibers and the wooden sheet, and carbon fiber reinforced woodTOHO RAYON KK·Filed 1997·Granted Sep 11, 2001·14 cites·12 claims
- 2252US5585062AProcess for making a cylindrical product of fiber reinforcement-thermoplastic resin compositeTOHO RAYON KK·Filed 1994·Granted Dec 17, 1996·15 cites·20 claims
- 2350US6238506B1Method of manufacturing steering wheelTOHO RAYON KK·Filed 1999·Granted May 29, 2001·19 cites·1 claims
- 2447US5078840AProcess for the surface treatment of carbon fiber strandsTOHO RAYON KK·Filed 1990·Granted Jan 7, 1992·9 cites·11 claims
- 2546US5371152AResin composition and process for producing the compositionTOHO RAYON KK·Filed 1992·Granted Dec 6, 1994·17 cites·12 claims
- 2646US4869856AMethod for producing carbon fibers from acrylonitrile fiber strandsTOHO RAYON KK·Filed 1987·Granted Sep 26, 1989·8 cites·11 claims
- 2745US5899118ASteering wheel and method of manufactureTOHO RAYON KK·Filed 1997·Granted May 4, 1999·12 cites·11 claims
- 2839US5286563AAcrylic fiber strand suitable for use in carbon fiber production and process for producing the sameTOHO RAYON KK·Filed 1991·Granted Feb 15, 1994·7 cites·8 claims
- 2938US5514771AProcess for preparation of soluble ion-doped poly (alkyl-substituted pyrrole)TOHO RAYON KK·Filed 1996·Granted May 7, 1996·6 cites·18 claims
- 3033US4898700AProcess for producing preoxidized fibers from acrylic fibersTOHO RAYON KK·Filed 1988·Granted Feb 6, 1990·3 cites·27 claims
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