Assignee
YAMAMOTO KOGAKU
JP·108 granted patents·7 pending applications·2,494 citations·filing 1981–2022
Top patents by PatentIndex Score
115 records- 0198USD519146SSunglassesYAMAMOTO KOGAKU·Filed 2004·Granted Apr 18, 2006·186 cites·1 claims
- 0297USD605686SPair of eyeglassesYAMAMOTO KOGAKU·Filed 2008·Granted Dec 8, 2009·136 cites·1 claims
- 0397US4584721ADevice for use in helmet for preventing fogging by electric heatingYAMAMOTO KOGAKU·Filed 1983·Granted Apr 29, 1986·101 cites·4 claims
- 0496US6613433B2Polarizing optical composite and polarizing lensYAMAMOTO KOGAKU·Filed 2001·Granted Sep 2, 2003·109 cites·24 claims
- 0591US7891025B2Protective device for eyesYAMAMOTO KOGAKU·Filed 2007·Granted Feb 22, 2011·26 cites·12 claims
- 0691USD350145SSunglassesYAMAMOTO KOGAKU·Filed 1992·Granted Aug 30, 1994·36 cites·1 claims
- 0791US4768234ASki glove with a protectorYAMAMOTO KOGAKU·Filed 1987·Granted Sep 6, 1988·103 cites·1 claims
- 0890US4502480AHelmet equipped with device for supplying atmospheric airYAMAMOTO KOGAKU·Filed 1983·Granted Mar 5, 1985·84 cites·8 claims
- 0988US11640073B2EyeglassesYAMAMOTO KOGAKU·Filed 2020·Granted May 2, 2023·3 cites·7 claims
- 1086US9146336B2Synthetic resin lensYAMAMOTO KOGAKU·Filed 2012·Granted Sep 29, 2015·18 cites·5 claims
- 1186US7922324B2Synthetic resin lens and eye lens article thereofYAMAMOTO KOGAKU·Filed 2009·Granted Apr 12, 2011·26 cites·7 claims
- 1286US5702813AComposite molded article including a polarizer of polycarbonateYAMAMOTO KOGAKU·Filed 1995·Granted Dec 30, 1997·88 cites·6 claims
- 1385US7901074B2Lens for safety glassesYAMAMOTO KOGAKU·Filed 2005·Granted Mar 8, 2011·26 cites·16 claims
- 1485US6659608B2Polarizing optical articleYAMAMOTO KOGAKU·Filed 2001·Granted Dec 9, 2003·40 cites·20 claims
- 1585US4498202AHelmet equipped with ventilatorYAMAMOTO KOGAKU·Filed 1983·Granted Feb 12, 1985·64 cites·8 claims
- 1683USD394707SLumbago preventive beltYAMAMOTO KOGAKU·Filed 1996·Granted May 26, 1998·50 cites·1 claims
- 1782US6455163B1Transparent optical articleYAMAMOTO KOGAKU·Filed 2001·Granted Sep 24, 2002·25 cites·14 claims
- 1878US6854464B2Respiration protecting apparatusYAMAMOTO KOGAKU·Filed 2002·Granted Feb 15, 2005·40 cites·4 claims
- 1977USD633937SGogglesYAMAMOTO KOGAKU·Filed 2010·Granted Mar 8, 2011·24 cites·1 claims
- 2076USD629442SGoggle bodyYAMAMOTO KOGAKU·Filed 2009·Granted Dec 21, 2010·22 cites·1 claims
- 2175US11686640B2Mask adhesion determination deviceYAMAMOTO KOGAKU·Filed 2018·Granted Jun 27, 2023·1 cites·10 claims
- 2274US6611966B1GogglesYAMAMOTO KOGAKU·Filed 2001·Granted Sep 2, 2003·71 cites·12 claims
- 2374US4443893AGoggles for ski useYAMAMOTO KOGAKU·Filed 1981·Granted Apr 24, 1984·77 cites·3 claims
- 2473US7192137B2Sports goggleYAMAMOTO KOGAKU·Filed 2002·Granted Mar 20, 2007·54 cites·11 claims
- 2573USD370932SSunglassesYAMAMOTO KOGAKU·Filed 1995·Granted Jun 18, 1996·18 cites·1 claims
- 2671US7318960B2Polarizing molded article and process for preparing the sameYAMAMOTO KOGAKU·Filed 2001·Granted Jan 15, 2008·11 cites·12 claims
- 2771US2023128743A1Protective equipment for respiration, protective system for respiration, and management methodYAMAMOTO KOGAKU·Filed 2022·Application pending·0 cites
- 2870US7290294B2Protective gogglesYAMAMOTO KOGAKU·Filed 2003·Granted Nov 6, 2007·21 cites·24 claims
- 2970US6665885B2GogglesYAMAMOTO KOGAKU·Filed 2001·Granted Dec 23, 2003·59 cites·9 claims
- 3070US5459882ASwimming gogglesYAMAMOTO KOGAKU·Filed 1994·Granted Oct 24, 1995·41 cites·4 claims
- 3169US6601240B2GogglesYAMAMOTO KOGAKU·Filed 2001·Granted Aug 5, 2003·43 cites·12 claims
- 3268US6814902B2Method for continuously manufacturing optical articleYAMAMOTO KOGAKU·Filed 2001·Granted Nov 9, 2004·6 cites·20 claims
- 3368USD395666SSwimming gogglesYAMAMOTO KOGAKU·Filed 1997·Granted Jun 30, 1998·15 cites·1 claims
- 3467US7549180B2Optical structure for eyesYAMAMOTO KOGAKU·Filed 2005·Granted Jun 23, 2009·8 cites·39 claims
- 3567US6704944B2Sports gogglesYAMAMOTO KOGAKU·Filed 2002·Granted Mar 16, 2004·42 cites·12 claims
- 3666US5706527AGoggles having greater pivotal adjustabilityYAMAMOTO KOGAKU·Filed 1996·Granted Jan 13, 1998·38 cites·4 claims
- 3766USD370927SSwimming gogglesYAMAMOTO KOGAKU·Filed 1995·Granted Jun 18, 1996·14 cites·1 claims
- 3866US5515551ASwimming gogglesYAMAMOTO KOGAKU·Filed 1993·Granted May 14, 1996·37 cites·14 claims
- 3965US7625082B2EyeglassesYAMAMOTO KOGAKU·Filed 2008·Granted Dec 1, 2009·9 cites·7 claims
- 4065US7526813B2GogglesYAMAMOTO KOGAKU·Filed 2004·Granted May 5, 2009·38 cites·25 claims
- 4165USD565083SSunglassesYAMAMOTO KOGAKU·Filed 2005·Granted Mar 25, 2008·15 cites·1 claims
- 4265USD440594SEyeglass frameYAMAMOTO KOGAKU·Filed 2000·Granted Apr 17, 2001·14 cites·1 claims
- 4365USD413914SSwimming gogglesYAMAMOTO KOGAKU·Filed 1998·Granted Sep 14, 1999·13 cites·1 claims
- 4465USD367665SEye-glassesYAMAMOTO KOGAKU·Filed 1994·Granted Mar 5, 1996·11 cites·1 claims
- 4564USD370930SEye glassesYAMAMOTO KOGAKU·Filed 1995·Granted Jun 18, 1996·12 cites·1 claims
- 4663USD439599SSunglassesYAMAMOTO KOGAKU·Filed 2000·Granted Mar 27, 2001·13 cites·1 claims
- 4763USD426254SSunglassesYAMAMOTO KOGAKU·Filed 1998·Granted Jun 6, 2000·11 cites·1 claims
- 4862USD745082SSwimming gogglesYAMAMOTO KOGAKU·Filed 2014·Granted Dec 8, 2015·12 cites·1 claims
- 4962USD384089SSwimming gogglesYAMAMOTO KOGAKU·Filed 1996·Granted Sep 23, 1997·12 cites·1 claims
- 5061US7490934B2Eyewear end pieceYAMAMOTO KOGAKU·Filed 2005·Granted Feb 17, 2009·5 cites·10 claims
Showing the top 50 of 115 patent records by PatentIndex Score.
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