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YANAGAWA SEIKI CO LTD

Overview
  • Total Patents
    72
About

YANAGAWA SEIKI CO LTD has a total of 72 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan, United States and Germany. Its main competitors in its focus markets mechanical elements, transport and environmental technology are LI PEIJI, SHAANXI HANDE AXLE CO LTD and MERITOR HEAVY VEHICLE SYSTEMS CAMERI SPA.

Patent filings in countries

World map showing YANAGAWA SEIKI CO LTDs patent filings in countries
# Country Total Patents
#1 Japan 66
#2 United States 2
#3 Germany 1
#4 Denmark 1
#5 France 1
#6 Italy 1

Patent filings per year

Chart showing YANAGAWA SEIKI CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Osawa Kunihiro 20
#2 Ashikawa Noboru 16
#3 Saito Masahiro 10
#4 Kasai Toshihiko 10
#5 Kawasaki Kazunari 9
#6 Taguchi Hiroshi 7
#7 Harano Eishin 5
#8 Saruwatari Tetsuo 5
#9 Furusugi Ken 5
#10 Kudo Satoshi 5

Latest patents

Publication Filing date Title
JP2014190374A Differential device
JP2013049897A Method for production of complex containing aluminum nitride, and method for production of complex containing aluminum nitride with gradient structure
JP2009006750A Driving force transmission device for standby four-wheel drive vehicle
JP2008309241A Continuously variable transmission
JP2008023582A Casting method and mold for casting, and placed core
JP2005254421A Inner surface machining method and inner surface machining device
US2004157696A1 Differential
JP2004360807A Differential
JP2004360808A Differential
JP2004204873A Differential
JP2004204875A Oil supply structure for differential
JP2004204874A Differential
JP2004076810A Lubricating structure of gear transmission
JP2004076812A Synchronous joining device of transmission
JP2004076811A Synchronous joining device of transmission
JP2002210550A Locally pressurized casting system
JP2002174327A Differential gear
JP2002039325A Differential
JP2001281106A Lubricating characteristic testing device of transmission
JP2001263484A Transmission