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WATANABE KEIZO

Overview
  • Total Patents
    13
About

WATANABE KEIZO has a total of 13 patent applications. Its first patent ever was published in 1993. It filed its patents most often in Japan and United States. Its main competitors in its focus markets environmental technology and telecommunications are NABITSUKU KK, CHANGZHOU ACADEME SOUTHEAST UNIVERSITY and SHENZHEN YUNZHONGFEI NETWORK TECH CO LTD.

Patent filings in countries

World map showing WATANABE KEIZOs patent filings in countries
# Country Total Patents
#1 Japan 12
#2 United States 1

Patent filings per year

Chart showing WATANABE KEIZOs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Watanabe Keizo 13
#2 Hasegawa Hajime 1

Latest patents

Publication Filing date Title
JP2012115116A Small-distribution supply system for power generated by natural energy
JP2010172732A Network game system and program
JP2010104389A Network game system and program
JP2009066137A Game device, method and program
JP2006266245A Disc rotor type pump with spiral groove
JP2005233170A Method for reducing disc friction by forming spiral groove
JP2005172209A Method for reducing frictional resistance of fluid by adding aspergillus
JP2002119527A Appliance for person of sexual dysfunction having penis model made of soft molding material mountable at shorts
JPH09195968A Rotary disk frictional pump provided with multiple narrow groove
JPH08121316A Impeller of turbo machine provided with multiple small grooves on side walls
JPH0768248A Waste water treatment apparatus and collective control device of two or more water treatment apparatuses
JPH06218390A Waste water treatment device