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RANCO JAPAN LTD

Overview
  • Total Patents
    172
About

RANCO JAPAN LTD has a total of 172 patent applications. Its first patent ever was published in 1974. It filed its patents most often in Japan and United States. Its main competitors in its focus markets thermal processes, environmental technology and control are SUN FRONTIER TECH KK, INTELLIDYNE HOLDINGS LLC and WILLIAMS OIL O MATIC HEATING.

Patent filings in countries

World map showing RANCO JAPAN LTDs patent filings in countries
# Country Total Patents
#1 Japan 169
#2 United States 3

Patent filings per year

Chart showing RANCO JAPAN LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Takahashi Ikuo 35
#2 Kondo Junichi 27
#3 Nakamu Keiichiro 25
#4 Adachi Minoru 10
#5 Sakai Sumio 10
#6 Nagaoka Hideo 8
#7 Matsumoto Takao 7
#8 Kondou Jiyunichi 7
#9 Morita Noriyuki 7
#10 Yanagioka Soichi 7

Latest patents

Publication Filing date Title
JP2005121133A Solenoid valve
JP2005121131A Method of joining tube to valve housing, and connecting member therefor
JP2005113991A Electromagnetic valve
JP2005113990A Selector valve
JP2002022315A Four-way selector valve of high efficiency
JP2001311571A Expansion valve mechanism
JP2001208231A Motor operated valve
JP2001208224A Four-way control valve
JP2001193857A Four-way selector valve
JP2001193855A Four-way selector valve
JP2001193851A Elector valve
JP2001193862A Three-way valve
JP2000120892A Four way switching valve and manufacture thereof
JPH11287352A Four-way selector valve
JPH11287346A Solenoid valve
JPH1137340A Thermally-actuated valve
JPH1137338A Thermal valve
JPH10131798A Signal setting apparatus with safety circuit
JPH1089523A Electrically driven expansion valve
JPH09329254A Solenoid valve