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WATANABE MASAO

Overview
  • Total Patents
    48
About

WATANABE MASAO has a total of 48 patent applications. Its first patent ever was published in 1975. It filed its patents most often in Japan, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets environmental technology, chemical engineering and machine tools are TANAKA MASAMICHI, HEESUNG ENGELHARD CORP and ICT CO LTD.

Patent filings in countries

World map showing WATANABE MASAOs patent filings in countries

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Watanabe Masao 47
#2 Watanabe Yoko 4
#3 Morikawa Akira 3
#4 Kishita Keisuke 3
#5 Hirose Takuto 3
#6 Otake Noboru 3
#7 Umemoto Kazuhiro 2
#8 Koiwa Saburo 2
#9 Yamashiro Hamao 2
#10 Fujii Akira 2

Latest patents

Publication Filing date Title
JP2010162116A Filter supporting device, filter used in filter supporting device and method for brewing beverage
JP2009196836A Hydrogen generating device and fuel cell-powered vehicle mounting the device
JP2004123517A Method of producing gaseous hydrogen using mechano-corrosive reaction
JP2003247385A Shutter lifting facilitating device
JP2002125703A Shoe equipped with windows to adjust open air
JP2001299423A Tool for prevention of dripping from umbrella
JP2000355692A Method for generating combustible gas by using biaomass as feedstock, equipment for generating combustible gas and hydrogen fuel cell apparatus having the equipment
JPH11195894A Device for shielding electromagnetic wave, electronic wave and overall wavelength of radiowave emitted from electric heater
JPH10337780A Method for executing lining tube in sewer
JPH10337781A Method for executing lining tube in sewer
JPH09196473A Heat storage method, manufacture of heating air, and cooling/heating method
JPH09154619A Bag equipped with power source device for portable electronic/electric tools
JPH08311937A Clean cool air and manufacture and supply method for tap water
JPH08214928A Underarm bag to carry cellular phone
JPH07144675A Tiltable sidecar frame
JPH07144523A Automatic bank control system
JPH05115716A Filter device of hot water in bathtub
JPS60145052A Shaved ice-containing healthy drink and its preparation
JPS59205936A Electrical coolant circulator
JPS59196034A Forcing tap of pickling vessel cooled with underground water