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KUMAGAI TEKKOSHO KK

Overview
  • Total Patents
    13
About

KUMAGAI TEKKOSHO KK has a total of 13 patent applications. Its first patent ever was published in 1982. It filed its patents most often in Japan. Its main competitors in its focus markets mechanical elements are KUNSHAN CITY ZHANGPU TOWN JIAJUHUI ELECTRONIC FACTORY, EVANS G J and DAMIC CONTROLS LTD.

Patent filings in countries

World map showing KUMAGAI TEKKOSHO KKs patent filings in countries
# Country Total Patents
#1 Japan 13

Patent filings per year

Chart showing KUMAGAI TEKKOSHO KKs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Mechanical elements

Focus technologies

# Technology
#1 Venting or aerating devices
#2 Pipes

Top inventors

# Name Total Patents
#1 Kumagai Naohiko 6
#2 Kuniyuki Shinpei 6
#3 Kitajima Yoshiyuki 4
#4 Kumagai Yoshio 3
#5 Miyamoto Takao 1
#6 Watanabe Teruaki 1
#7 Okuwaki Setsuo 1

Latest patents

Publication Filing date Title
JP2011080858A Full water level detector
JP2011074941A Swing type check valve
JP2009156326A Lift check valve
JP2007239861A Check valve
JP2007177816A Check valve
JP2007162776A Check valve
JPH11141492A Guide support
JPH11325282A Check valve
JPH10213242A Check valve
JPH09137867A Sluice valve and sluice valve unit
JPH08135814A Swing type check valve
JPH0821586A Muffling device
JPS5973670A Method for fitting valve seat to valve box