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O OKA CORP

Overview
  • Total Patents
    48
  • GoodIP Patent Rank
    238,946
About

O OKA CORP has a total of 48 patent applications. Its first patent ever was published in 2000. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets machine tools, machines and mechanical elements are OOKA GIKEN KK, METALART CORP and ELBERTZ FRANK V.

Patent filings per year

Chart showing O OKA CORPs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Ooka Mitsushige 18
#2 Shimomura Mitsuhiko 16
#3 Kawasaki Yoshiki 12
#4 Ooka Junichi 12
#5 O-Oka Mitsushige 9
#6 Okada Tomoyoshi 8
#7 Hoguchi Tetsuya 7
#8 Higuchi Tetsuya 2
#9 Tsujimoto Hiroshi 2
#10 Nagata Kenjiro 2

Latest patents

Publication Filing date Title
JP2015175397A Dog clutch and speed change gear
JP2015078747A Clutch gear with stopper
JP2015021569A Reduction driven gear structure
JP2014105744A Gear
JP2014098438A Double helical gear
JP2014066336A Gear with flange
JP2014043929A Sun gear
JP2013092232A Dog clutch tooth stabilized in fitting
JP2013092177A Transmission gear formed with protruding part having stopper function in vicinity of dog clutch tooth
JP2013040652A Synchronous clutch gear for double-cone synchronization
JP2013035005A Inner spline gear with special intermittent tooth
JP2013036500A Concave tapered conical gear
EP2584224A1 Gear with free curved surfaces
JP2012127434A Dog clutch tooth with asymmetrical right and left tooth flanks
JP2009156449A Integrally molded gear with gear and spline shaft
JP2009156369A Two-stage helical gear
JP2009156351A Integrally molded internal gear
US2005263368A1 Speed change gear with dog clutch pawl, and method and device of manufacturing the same
US2005136223A1 Chamfering method, forging device used in the chamfering method, and chamfered product
US2004231448A1 Gear having window holes, and method and apparatus for manufacturing the same