Assignee
KUREHA CHEMICAL IND CO LTD
JP·1,024 granted patents·8 pending applications·19,106 citations·filing 1972–2005
Top patents by PatentIndex Score
1,032 records- 0198US5498662AGas barrier film and production process thereofKUREHA CHEMICAL IND CO LTD·Filed 1994·Granted Mar 12, 1996·131 cites·13 claims
- 0298US4645826AProcess for production of high to ultra-high molecular weight linear polyarylenesulfidesKUREHA CHEMICAL IND CO LTD·Filed 1985·Granted Feb 24, 1987·126 cites·17 claims
- 0397US5621026AGas barrier film and production process thereofKUREHA CHEMICAL IND CO LTD·Filed 1995·Granted Apr 15, 1997·112 cites·12 claims
- 0497US4756973APhotochromic lensKUREHA CHEMICAL IND CO LTD·Filed 1986·Granted Jul 12, 1988·251 cites·7 claims
- 0596US4761284AAntidote including activated carbon particlesKUREHA CHEMICAL IND CO LTD·Filed 1985·Granted Aug 2, 1988·78 cites·11 claims
- 0696US3935485APiezoelectric key board switchKUREHA CHEMICAL IND CO LTD·Filed 1974·Granted Jan 27, 1976·123 cites·16 claims
- 0795US5141847AMethod and apparatus for producing pulsationKUREHA CHEMICAL IND CO LTD·Filed 1990·Granted Aug 25, 1992·193 cites·22 claims
- 0895US4938792AAzole derivatives and agricultural and horticultural chemical composition containing the sameKUREHA CHEMICAL IND CO LTD·Filed 1987·Granted Jul 3, 1990·45 cites·6 claims
- 0995US4610927AMicrocapsules containing a hydrophobic, volatile core substance and their productionKUREHA CHEMICAL IND CO LTD·Filed 1984·Granted Sep 9, 1986·79 cites·7 claims
- 1095US4557755AMicroencapsulated agricultural chemical and process of preparation thereofKUREHA CHEMICAL IND CO LTD·Filed 1982·Granted Dec 10, 1985·75 cites·10 claims
- 1195US4504773ACapacitor discharge circuitKUREHA CHEMICAL IND CO LTD·Filed 1982·Granted Mar 12, 1985·141 cites·8 claims
- 1294US6921609B2Gradient cathode material for lithium rechargeable batteriesKUREHA CHEMICAL IND CO LTD·Filed 2002·Granted Jul 26, 2005·70 cites·7 claims
- 1394US5017698ASpirooxazine photochromic compoundsKUREHA CHEMICAL IND CO LTD·Filed 1989·Granted May 21, 1991·32 cites·4 claims
- 1494US4877964AUltraviolet sterilizing apparatusKUREHA CHEMICAL IND CO LTD·Filed 1988·Granted Oct 31, 1989·155 cites·5 claims
- 1594US4735778AMicrotiter plateKUREHA CHEMICAL IND CO LTD·Filed 1986·Granted Apr 5, 1988·176 cites·6 claims
- 1693US6699549B1Heat-shrinkable multilayer filmKUREHA CHEMICAL IND CO LTD·Filed 1999·Granted Mar 2, 2004·101 cites·27 claims
- 1793US5415958AVinylidene fluoride copolymer, and binder composition containing the copolymer for non-aqueous solvent-type secondary batteryKUREHA CHEMICAL IND CO LTD·Filed 1993·Granted May 16, 1995·80 cites·10 claims
- 1893US4931523APlastic lensKUREHA CHEMICAL IND CO LTD·Filed 1988·Granted Jun 5, 1990·78 cites·7 claims
- 1993US4732795AHeat-shrinkable laminate tubular filmKUREHA CHEMICAL IND CO LTD·Filed 1984·Granted Mar 22, 1988·64 cites·10 claims
- 2093US4699975AProcess for producing readily crystallizable arylenesulfide resin composition containing organic acid or anhydrideKUREHA CHEMICAL IND CO LTD·Filed 1986·Granted Oct 13, 1987·56 cites·8 claims
- 2193US4279952AMultilayer insulating material and process for production thereofKUREHA CHEMICAL IND CO LTD·Filed 1978·Granted Jul 21, 1981·46 cites·14 claims
- 2293US4273675AProcess for the preparation of spherical carbon particles and spherical activated carbon particlesKUREHA CHEMICAL IND CO LTD·Filed 1979·Granted Jun 16, 1981·43 cites·8 claims
- 2393US4161562ABiaxially stretched five-layer film for packaging foodKUREHA CHEMICAL IND CO LTD·Filed 1977·Granted Jul 17, 1979·63 cites·8 claims
- 2493US4057660AMethod for producing thermoplastic film electric elementKUREHA CHEMICAL IND CO LTD·Filed 1975·Granted Nov 8, 1977·52 cites·9 claims
- 2593US4045368AProcess for production of activated carbon spheresKUREHA CHEMICAL IND CO LTD·Filed 1974·Granted Aug 30, 1977·55 cites·6 claims
- 2693US4009305AProcess for the surface treatment of carbon fibersKUREHA CHEMICAL IND CO LTD·Filed 1973·Granted Feb 22, 1977·55 cites·5 claims
- 2792US6339045B1N-(unsubstituted or substituted)-4-substituted-6-(unsubstituted or substituted)phenoxy-2-pyridinecarboxamides or thiocarboxamides, processes for producing the same, and herbicidesKUREHA CHEMICAL IND CO LTD·Filed 1996·Granted Jan 15, 2002·63 cites·9 claims
- 2892US5840830AProcess for producing poly(arylene sulfide)KUREHA CHEMICAL IND CO LTD·Filed 1997·Granted Nov 24, 1998·66 cites·19 claims
- 2992US4814430AProcess for producing poly(arylene sulfide) of reduced alkali metal contentKUREHA CHEMICAL IND CO LTD·Filed 1987·Granted Mar 21, 1989·52 cites·8 claims
- 3092US4794164AProcess for producing a polyarylene sulfide of excellent handling property and a polyarylene sulfide produced by the process thereofKUREHA CHEMICAL IND CO LTD·Filed 1987·Granted Dec 27, 1988·53 cites·12 claims
- 3192US4676258ADevice for hyperthermiaKUREHA CHEMICAL IND CO LTD·Filed 1986·Granted Jun 30, 1987·627 cites·29 claims
- 3292US4451590AOrganic friction materialKUREHA CHEMICAL IND CO LTD·Filed 1983·Granted May 29, 1984·44 cites·5 claims
- 3392US4196135APalladium complexKUREHA CHEMICAL IND CO LTD·Filed 1978·Granted Apr 1, 1980·22 cites·1 claims
- 3491US4822765AProcess for treating activated carbon with aqueous ammoniaKUREHA CHEMICAL IND CO LTD·Filed 1987·Granted Apr 18, 1989·45 cites·13 claims
- 3591US4745167APolyarylene sulfide preparation in titanium reaction vessel with two distinct temperature rangesKUREHA CHEMICAL IND CO LTD·Filed 1986·Granted May 17, 1988·47 cites·12 claims
- 3691US4662383AEndotract antenna device for hyperthermiaKUREHA CHEMICAL IND CO LTD·Filed 1983·Granted May 5, 1987·457 cites·19 claims
- 3791US4424243AHeat-shrinkable laminate filmKUREHA CHEMICAL IND CO LTD·Filed 1982·Granted Jan 3, 1984·73 cites·10 claims
- 3891US4420339ACollagen fibers for use in medical treatmentsKUREHA CHEMICAL IND CO LTD·Filed 1982·Granted Dec 13, 1983·42 cites·6 claims
- 3991US4314032ACrosslinked polyvinyl alcohol gelKUREHA CHEMICAL IND CO LTD·Filed 1979·Granted Feb 2, 1982·40 cites·9 claims
- 4091US4301067AChitin containing poly-ion complexKUREHA CHEMICAL IND CO LTD·Filed 1980·Granted Nov 17, 1981·50 cites·7 claims
- 4191US4290983APiezoelectric and pyroelectric film and method for preparing the filmKUREHA CHEMICAL IND CO LTD·Filed 1979·Granted Sep 22, 1981·52 cites·8 claims
- 4291US4222128AComposite implant materials and process for preparing sameKUREHA CHEMICAL IND CO LTD·Filed 1978·Granted Sep 16, 1980·180 cites·8 claims
- 4391US4039290ASpent activated carbon regeneratorKUREHA CHEMICAL IND CO LTD·Filed 1976·Granted Aug 2, 1977·64 cites·6 claims
- 4491US3951904AElectromagnetic wave absorbing material containing carbon microspheresKUREHA CHEMICAL IND CO LTD·Filed 1974·Granted Apr 20, 1976·48 cites·9 claims
- 4591US3947644APiezoelectric-type electroacoustic transducerKUREHA CHEMICAL IND CO LTD·Filed 1972·Granted Mar 30, 1976·128 cites·7 claims
- 4690US6916939B2Process for the preparation of cyclic esters and method for purification of the sameKUREHA CHEMICAL IND CO LTD·Filed 2001·Granted Jul 12, 2005·46 cites·30 claims
- 4790US6558667B2Method for treating renal disease, and pharmaceutical composition for treating renal diseaseKUREHA CHEMICAL IND CO LTD·Filed 2001·Granted May 6, 2003·32 cites·8 claims
- 4890US5650433AChondroprotective agentsKUREHA CHEMICAL IND CO LTD·Filed 1995·Granted Jul 22, 1997·89 cites·11 claims
- 4990US4726170AAutomatic filling and packaging systemKUREHA CHEMICAL IND CO LTD·Filed 1986·Granted Feb 23, 1988·84 cites·2 claims
- 5090US4474853ASorbent comprising spherical particles of activated carbon depositing non-crystalline compound of zirconium and process for preparing thereofKUREHA CHEMICAL IND CO LTD·Filed 1983·Granted Oct 2, 1984·51 cites·12 claims
Showing the top 50 of 1,032 patent records by PatentIndex Score.
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →