Learn more

HAYAKAWA VALVE SEISAKUSHO KK

Overview
  • Total Patents
    31
About

HAYAKAWA VALVE SEISAKUSHO KK has a total of 31 patent applications. Its first patent ever was published in 1986. It filed its patents most often in Japan. Its main competitors in its focus markets medical technology, environmental technology and mechanical elements are SIS ENG CO LTD, MOLOSTOV OLEG G and SOUTH STAFFORDSHIRE WATER PLC.

Patent filings in countries

World map showing HAYAKAWA VALVE SEISAKUSHO KKs patent filings in countries
# Country Total Patents
#1 Japan 31

Patent filings per year

Chart showing HAYAKAWA VALVE SEISAKUSHO KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hayakawa Norio 25
#2 Hayakawa Takayuki 5
#3 Hayakawa Yoji 4
#4 Hayakawa Toru 2
#5 Yano Kenji 2
#6 Makino Yoshitaka 2
#7 Hayakawa Shinji 2
#8 Kamiyama Masayuki 2
#9 Kamiya Tomohiko 2
#10 Yasue Haruhiko 1

Latest patents

Publication Filing date Title
JP2012057665A Resin water stop valve cartridge
JP2010031923A Switching valve cartridge and switching valve device
JP2008138506A Water supply appliance with function for preventing elution of nickel and water supply appliance with function for preventing elution of metal
JP2007254022A Water dispenser
JP2007077753A Pressure reducing valve
JP2006316480A Nickel-free water supply system
JP2006250246A Warning valve device
JP2006191839A Hot water type weeding apparatus
JP2006187378A Shower device with function, cartridge containing functional agent for shower device with function, manufacturing method of impregnation device and porous ceramic material impregnated with solution
JP2006149574A Picture stand with deodorizing function
JP2005293230A Pressure reducing valve
JP2004307915A Worked workpiece with highly corrosion-resistant ion plating, and method for manufacturing the same
JP2004183247A Water spout device with flow meter, changeover cock with flow meter, flexible water spout pipe with flow meter, flow meter for water purifying-activating instrument, cock with flow meter for under-sink type water purifying-activating instrument, and flow meter unit
JP2003190970A Simple water cleaner using cartridge
JP2002130558A Bayonet pipe joint for fluid pipe
JP2002115292A Faucet having water purifier, and cartridge for water purifier for use therein
JP2001149271A Imitation sound generator for toilet provided with deodorant spray
JP2001056062A Branch cock for mounting faucet
JP2000354555A Temporary water stop cock for shower
JP2000353018A Pressure adjusting valve device