Assignee
KOKEN KK
JP·59 granted patents·12 pending applications·2,407 citations·filing 1977–2023
Top patents by PatentIndex Score
71 records- 0198US4133984APlug-type hearing deviceKOKEN KK·Filed 1977·Granted Jan 9, 1979·251 cites·28 claims
- 0296US4413359AImpermeable laminate membraneKOKEN KK·Filed 1982·Granted Nov 8, 1983·120 cites·3 claims
- 0394US6998268B2Gene preparationsKOKEN KK·Filed 2002·Granted Feb 14, 2006·52 cites·19 claims
- 0492US4806595AMethod of preparing antithrombogenic medical materialsKOKEN KK·Filed 1986·Granted Feb 21, 1989·237 cites·16 claims
- 0589US5387236AVascular prosthesis, manufacturing method of the same, and substrate for vascular prosthesisKOKEN KK·Filed 1992·Granted Feb 7, 1995·87 cites·4 claims
- 0689US4592864AAqueous atelocollagen solution and method of preparing sameKOKEN KK·Filed 1984·Granted Jun 3, 1986·83 cites·8 claims
- 0787US4314380AArtificial boneKOKEN KK·Filed 1980·Granted Feb 9, 1982·134 cites·13 claims
- 0886US4559304ASubstratum for cell culture and a method for culturing and isolating cells using sameKOKEN KK·Filed 1983·Granted Dec 17, 1985·58 cites·11 claims
- 0985US4749689AHemostatic agent composed of collagen/gelatin and protamineKOKEN KK·Filed 1987·Granted Jun 7, 1988·132 cites·9 claims
- 1084US5314874AIntracorporeally injectable composition for implanting highly concentrated cross-linked atelocollagenKOKEN KK·Filed 1992·Granted May 24, 1994·101 cites·6 claims
- 1182US6658614B1Boundary scan element and communication device made by using the sameKOKEN KK·Filed 1998·Granted Dec 2, 2003·41 cites·3 claims
- 1282US4704131AMedical materialsKOKEN KK·Filed 1984·Granted Nov 3, 1987·92 cites·8 claims
- 1381US6177544B1Collagen-based auxiliary agent for ophthalmic surgeryKOKEN KK·Filed 1998·Granted Jan 23, 2001·54 cites·6 claims
- 1480US11559603B2High-strength collagen spongeKOKEN KK·Filed 2017·Granted Jan 24, 2023·1 cites·8 claims
- 1580US5935303AElectrostatic filterKOKEN KK·Filed 1997·Granted Aug 10, 1999·52 cites·10 claims
- 1679US12303613B2High-strength collagen spongeKOKEN KK·Filed 2022·Granted May 20, 2025·0 cites·10 claims
- 1779US5080670ABioprosthetic valveKOKEN KK·Filed 1988·Granted Jan 14, 1992·122 cites·14 claims
- 1878US4565580ASubstrate consisting of regenerated collagen fibrils and method of manufacturing sameKOKEN KK·Filed 1984·Granted Jan 21, 1986·46 cites·9 claims
- 1976US6514614B1Coated nucleus for a cultured pearlKOKEN KK·Filed 2000·Granted Feb 4, 2003·17 cites·15 claims
- 2073US8349346B2Antimicrobial composition, process for preparing the same, and utilization thereofKOKEN KK·Filed 2009·Granted Jan 8, 2013·0 cites·6 claims
- 2173US8030361B2Cell culture carrier implantable in vivoKOKEN KK·Filed 2005·Granted Oct 4, 2011·9 cites·23 claims
- 2273US4137906ACatheter apparatus with occlusion and flow diverting meansKOKEN KK·Filed 1977·Granted Feb 6, 1979·104 cites·8 claims
- 2373US2025382461A1Polyrotaxane comprising cyclic molecule with aldehyde group adduct, method for producing said polyrotaxane, stretchable biomaterial, and method for producing said biomaterialKOKEN KK·Filed 2023·Application pending·0 cites
- 2472US7195015B2Breathing apparatusKOKEN KK·Filed 2002·Granted Mar 27, 2007·21 cites·3 claims
- 2571US4695281AMedical materialKOKEN KK·Filed 1983·Granted Sep 22, 1987·25 cites·13 claims
- 2670US6669711B1Operation balloonKOKEN KK·Filed 1999·Granted Dec 30, 2003·160 cites·9 claims
- 2766USD1036652SMaskKOKEN KK·Filed 2021·Granted Jul 23, 2024·3 cites·1 claims
- 2863US10638802B2Mask provided with latchKOKEN KK·Filed 2017·Granted May 5, 2020·3 cites·7 claims
- 2963US4853621AWater resistance load systemKOKEN KK·Filed 1987·Granted Aug 1, 1989·11 cites·20 claims
- 3061US7018359B2Inner pressure indicator of cuffKOKEN KK·Filed 2002·Granted Mar 28, 2006·32 cites·6 claims
- 3161US2022409935A1Air respirator and fireproof clothing worn with air respiratorKOKEN KK·Filed 2020·Application pending·0 cites
- 3261US2026041177A1MaskKOKEN KK·Filed 2023·Application pending·0 cites
- 3360US5840054AMethod for obstructing lacrimal canaliculi with infusable solution or dispersionKOKEN KK·Filed 1995·Granted Nov 24, 1998·50 cites·18 claims
- 3459US4512108ALens working apparatusKOKEN KK·Filed 1982·Granted Apr 23, 1985·9 cites·6 claims
- 3558US9901758B2Respiratory protection deviceKOKEN KK·Filed 2013·Granted Feb 27, 2018·3 cites·16 claims
- 3658US4874511AApatite chromatography column systemKOKEN KK·Filed 1988·Granted Oct 17, 1989·16 cites·6 claims
- 3756US6928686B2Washing apparatus for endoscopeKOKEN KK·Filed 2002·Granted Aug 16, 2005·28 cites·19 claims
- 3856US2011028535A1Oligonucleotides-transferring preparationsKOKEN KK·Filed 2010·Application pending·0 cites
- 3955US7722830B2System for decomposing organic compoundKOKEN KK·Filed 2006·Granted May 25, 2010·1 cites·9 claims
- 4055US2007259322A1Breathing simulator for evaluation test of respiratorKOKEN KK·Filed 2007·Application pending·0 cites
- 4154US4910457AWater resistance load systemKOKEN KK·Filed 1989·Granted Mar 20, 1990·8 cites·13 claims
- 4253US10295207B2Air blowing deviceKOKEN KK·Filed 2017·Granted May 21, 2019·0 cites·5 claims
- 4353US2015213731A1Training model for ultrasonic bronchoscopyKOKEN KK·Filed 2011·Application pending·0 cites
- 4452US2015297920A1Air blower and protective suit including the sameKOKEN KK·Filed 2013·Application pending·0 cites
- 4551US8029990B2Cell transfection array for introduction of nucleic acidKOKEN KK·Filed 2005·Granted Oct 4, 2011·0 cites·10 claims
- 4651US5171261AVascular prosthesis, manufacturing method of the same, and substrate for vascular prothesisKOKEN KK·Filed 1990·Granted Dec 15, 1992·47 cites·3 claims
- 4750US4883487AMethod of producing an artifical skinKOKEN KK·Filed 1987·Granted Nov 28, 1989·34 cites·3 claims
- 4850US4215689AInjecting apparatus for medical liquidKOKEN KK·Filed 1978·Granted Aug 5, 1980·44 cites·11 claims
- 4949US7052875B1Stable gene preparationsKOKEN KK·Filed 1999·Granted May 30, 2006·14 cites·8 claims
- 5049US4810495AAgent for inhibiting proliferation of human malignant tumor cellsKOKEN KK·Filed 1985·Granted Mar 7, 1989·5 cites·23 claims
Showing the top 50 of 71 patent records by PatentIndex Score.
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