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YAMAKEI KK

Overview
  • Total Patents
    11
About

YAMAKEI KK has a total of 11 patent applications. Its first patent ever was published in 1984. It filed its patents most often in Japan. Its main competitors in its focus markets environmental technology and civil engineering are HOKUBU KK, QINGDAO ZHENGDA HAIER PHARM CO and CHENGDU WANGHUA AGRICULTURAL DEV CO LTD.

Patent filings in countries

World map showing YAMAKEI KKs patent filings in countries
# Country Total Patents
#1 Japan 11

Patent filings per year

Chart showing YAMAKEI KKs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Yamamoto Isao 10
#2 Mizuno Akira 1
#3 Koyama Yoshimitsu 1

Latest patents

Publication Filing date Title
JP2003214151A Electric and water screen type exhaust emission control device
JP2003049628A Purifying device of exhaust gas material
JP2003035127A Exhaust emission control device
JP2002047916A Exhaust emission control system
JP2001269395A Deodorization apparatus
JP2001132919A Flue gas treatment system of incinerator
JP2001129431A Stack gas treating device of incinerator
JP2000297923A Unit type combustion filter system
JPH11169747A Apparatus for treating flue gas of incinerator
JPH10266832A Exhaust emission control device
JPS60212524A Method of building foundation of main column erected from ground surface