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MASUNAGA OPTICAL MFG CO LTD

Overview
  • Total Patents
    65
  • GoodIP Patent Rank
    180,549
About

MASUNAGA OPTICAL MFG CO LTD has a total of 65 patent applications. Its first patent ever was published in 1994. It filed its patents most often in Japan, WIPO (World Intellectual Property Organization) and United States. Its main competitors in its focus markets optics, materials and metallurgy and machine tools are GENUINE INTERNAT INVEST LTD, FOVAL SRL and PERCY KIRK.

Patent filings per year

Chart showing MASUNAGA OPTICAL MFG CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Masunaga Satoru 61
#2 Sanae Setsuo 4
#3 Murata Kazuo 3
#4 Satoru Masunaga 2
#5 Akiyama Masao 1
#6 Setsuo Sanae 1
#7 Satoru Musunaga 1
#8 Masunaga Sotaro 1
#9 Sanae Setsuro 1

Latest patents

Publication Filing date Title
WO2016113773A1 Front frame for eyeglasses having attached rim cover
WO2016092600A1 Glasses frame with screwless hinges
WO2016059660A1 Fastening structure for spectacle components
WO2014122687A1 Spectacle frame and temple member for spectacle frame
WO2014024223A1 Highly elastic front frame for eyewear
WO2013179343A1 Fitted hinge-type eyeglass frame
WO2011007421A1 Rim lock structure of eyeglass frame and method for manufacturing the same
JP2010181446A Temple fitting structure in semi-temple eyeglasses
JP2010134196A Nose pad mounting structure for metal front frame
JP2010097085A Mechanism for adjusting position of glasses temple
JP2008233199A Hinge structure of spectacles
JP2008164646A Rimless eyeglasses and its assembling method
JP2007156302A Fashion spectacles giving superior wearing feeling
JP2005250064A Spectacle frame
JP2004133049A Ear clip eyeglasses and tip to be used therefor
JP2004093704A Linking structure of spectacles and spectacles with the same
JP2003215504A Shock absorption mechanism for eyeglass
JP2003195228A Notch type temple opening/closing mechanism for eyeglasses
JP2003177359A Connecting mechanism of spectacles
JP2003149601A Lens stably securing mechanism for rimless spectacles