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TOKYO KEISO KK

Overview
  • Total Patents
    305
  • GoodIP Patent Rank
    61,585
  • Filing trend
    ⇩ 50.0%
About

TOKYO KEISO KK has a total of 305 patent applications. It decreased the IP activity by 50.0%. Its first patent ever was published in 1971. It filed its patents most often in Japan, China and United States. Its main competitors in its focus markets measurement, audio-visual technology and mechanical elements are OMATOI NAOYUKI, FAURE HERMAN ETS and VSE VOLUMENTECHNIK GMBH.

Patent filings in countries

World map showing TOKYO KEISO KKs patent filings in countries

Patent filings per year

Chart showing TOKYO KEISO KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Sugi Tokio 69
#2 Sunakawa Yoshihiko 35
#3 Kobayashi Tamotsu 16
#4 Mori Yasuo 15
#5 Ochiai Hiroshi 13
#6 Abe Mokichi 10
#7 Koike Tatsuro 9
#8 Takamoto Masaki 9
#9 Kayama Nagaoki 9
#10 Takahashi Yuji 9

Latest patents

Publication Filing date Title
JP2020159505A Flow control valve device
JP2020028059A Supersonic wave transmitter-receiver
JP2018202779A Welding device of synthetic resin pipe body
JP2018151262A Ultrasonic flowmeter
JP2017211272A Abnormality diagnosis method of liquid level indicator
JP2017194288A Abnormal diagnosis method of level gauge
CN105424110A Ultrasonic wave water meter
CN105424111A Ultrasonic wave metering device
JP2017096715A Method for controlling servo balance type level gauge
JP2017090391A Ultrasonic flowmeter
JP2017062197A Level measurement method for boundary surface of heterogeneous liquids
JP2017032304A Wetted-type electromagnetic flowmeter
JP2016212045A Area flow meter
JP2016206080A Calibrator for electromagnetic flow rate meter
JP2016206079A Exciting coil short circuit determination method of electromagnetic flow meter
JP2016206077A Method for extracting signal of electromagnetic flowmeter
JP2016206078A Empty state determination method of electromagnetic flow meter
JP2016133383A Ultrasonic flow meter
JP2016008880A Ultrasonic flowmeter
JP2015172562A Ultrasonic flow meter