Assignee
KUREHA CORP
JP250 patents
Top patents by PatentIndex Score
US7025908B1Apr 11, 2006
Optical filter and process for producing the same
KUREHA CORP73 citations95
US10227429B2Mar 12, 2019
Vinylidene fluoride copolymer, method for producing the same, gel electrolyte, and non-aqueous battery
KUREHA CORP84 citations94
US9714551B2Jul 25, 2017
Plug for well drilling process provided with mandrel formed from degradable material
KUREHA CORP25 citations94
US9708878B2Jul 18, 2017
Applications of degradable polymer for delayed mechanical changes in wells
KUREHA CORP25 citations94
US7834133B2Nov 16, 2010
Production process of poly(arylene sulfide)
KUREHA CORP20 citations92
US7785682B2Aug 31, 2010
Multilayer sheet made of polyglycolic acid resin
KUREHA CORP26 citations92
US7767783B2Aug 3, 2010
Poly (arylene sulfide) and production process thereof
KUREHA CORP17 citations92
US7754848B2Jul 13, 2010
Poly (arylene sulfide) and production process thereof
KUREHA CORP17 citations92
US7666486B2Feb 23, 2010
Multi-layered biaxial stretch blow molded bottle and method for production thereof
KUREHA CORP29 citations92
US7655748B2Feb 2, 2010
Poly(arylene sulfide) and production process thereof
KUREHA CORP17 citations92
US7538178B2May 26, 2009
Process for producing aliphatic polyester
KUREHA CORP19 citations92
US7504476B2Mar 17, 2009
Poly(arylene sulfide) and production process thereof
KUREHA CORP18 citations92
US7476712B2Jan 13, 2009
Film and process for producing the same
KUREHA CORP20 citations92
US7455772B2Nov 25, 2008
Hollow-fiber porous water filtration membrane of vinylidene fluoride resin and process for producing the same
KUREHA CORP30 citations92
US7351338B2Apr 1, 2008
Porous membrane of vinylidene fluoride resin and process for producing the same
KUREHA CORP29 citations92
US7067611B2Jun 27, 2006
Polyhydroxycarboxylic acid and its production process
KUREHA CORP23 citations92
USD592011SMay 12, 2009
Cup to assist the taking of medicines orally
KUREHA CORP21 citations91
US7220817B2May 22, 2007
Process for producing polyarylene sulfide
KUREHA CORP21 citations91
US7176227B2Feb 13, 2007
Amine compounds and use thereof
KUREHA CORP16 citations90
USD629044SDec 14, 2010
Label
KUREHA CORP22 citations89
USD581263SNov 25, 2008
Packing box for fishing line
KUREHA CORP24 citations89
US7267858B2Sep 11, 2007
Packaging material for and packaged product of medical supplies and the like
KUREHA CORP20 citations89
US7018719B2Mar 28, 2006
Low-temperature impact-resistant polyamide-based stretch-oriented multilayer film
KUREHA CORP31 citations89
US10208559B2Feb 19, 2019
Diameter-expandable annular degradable seal member for downhole tool, plug for well drilling, and method for well drilling
KUREHA CORP9 citations84
USRE46028EJun 14, 2016
Method and apparatus for delayed flow or pressure change in wells
KUREHA CORP3 citations84
US8039548B2Oct 18, 2011
Method for purifying hydroxycarboxylic acid, method for producing cyclic ester, and method for producing polyhydroxycarboxylic acid
KUREHA CORP12 citations84
US8003721B2Aug 23, 2011
Aliphatic polyester composition and method for producing the same
KUREHA CORP12 citations84
US7976919B2Jul 12, 2011
Multilayer blow molded container and production process thereof
KUREHA CORP15 citations84
US7858239B2Dec 28, 2010
Negative electrode material for non-aqueous electrolyte secondary battery, process for producing the same, negative electrode, and non-aqueous electrolyte secondary battery
KUREHA CORP8 citations84
US7807590B2Oct 5, 2010
Isotropic pitch-based carbon fiber spun yarn, composite yarn and fabric using the same, and manufacturing methods thereof
KUREHA CORP8 citations84
US7799837B2Sep 21, 2010
Bottle excellent in recyclability and method for recycling the bottle
KUREHA CORP11 citations84
US7713464B2May 11, 2010
Multilayer container of polyglycolic acid and polyester and blow molding production process
KUREHA CORP20 citations84
US7632915B2Dec 15, 2009
Production process and washing method of poly(arylene sulfide), and purification process of organic solvent used in washing
KUREHA CORP17 citations84
US7622546B2Nov 24, 2009
Production process of aliphatic polyester
KUREHA CORP12 citations84
US7517946B2Apr 14, 2009
Production process of poly(arylene sulfide)
KUREHA CORP18 citations84
US7235673B2Jun 26, 2007
Glycolide production process, and glycolic acid oligomer for glycolide production
KUREHA CORP20 citations84
US7094867B2Aug 22, 2006
Method of continuously cleansing polyarylene sulfide
KUREHA CORP18 citations84
US9267351B2Feb 23, 2016
Member for hydrocarbon resource collection downhole tool
KUREHA CORP9 citations83
US8362158B2Jan 29, 2013
Polyglycolic acid resin composition
KUREHA CORP14 citations83
US7998385B2Aug 16, 2011
Method for producing multilayer stretch-molded article
KUREHA CORP13 citations83
US7781370B2Aug 24, 2010
Process for producing spherical activated carbon
KUREHA CORP12 citations83
US7538179B2May 26, 2009
Process for producing aliphatic polyester
KUREHA CORP16 citations83
US7501464B2Mar 10, 2009
Process for producing aliphatic polyester composition
KUREHA CORP11 citations83
US7172810B2Feb 6, 2007
Resin compositions, monofilaments, process for producing the same and fishing lines
KUREHA CORP13 citations83
US7947790B2May 24, 2011
Porous film of vinylidene fluoride resin and method for producing same
KUREHA CORP8 citations82
US7812181B2Oct 12, 2010
Process for producing glycolide and glycolic acid oligomer for production of glycolide
KUREHA CORP12 citations82
US7569656B2Aug 4, 2009
Process for production of polyarylene sulfide
KUREHA CORP19 citations82
US7501176B2Mar 10, 2009
Highly moisture proof film and method of manufacturing the same
KUREHA CORP18 citations82
US7252882B2Aug 7, 2007
Thermally foamable microsphere and production process thereof
KUREHA CORP10 citations82
US7237371B2Jul 3, 2007
Deep draw packing method and film with small shrinkability for deep draw packing
KUREHA CORP13 citations82
Showing the top 50 of 250 patents by PatentIndex Score.