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HATAYAMA SAKAE

Overview
  • Total Patents
    13
About

HATAYAMA SAKAE has a total of 13 patent applications. Its first patent ever was published in 1988. It filed its patents most often in Japan, China and Republic of Korea. Its main competitors in its focus markets environmental technology, chemical engineering and packaging and shipping are NORDISKA VATTENPROJEKT AB NOVA, GRABOWSKI TROPFKOERPER TECHNIK and FRANDSEN AKSEL S.

Patent filings in countries

World map showing HATAYAMA SAKAEs patent filings in countries
# Country Total Patents
#1 Japan 11
#2 China 1
#3 Republic of Korea 1

Patent filings per year

Chart showing HATAYAMA SAKAEs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hatayama Sakae 13
#2 Minagawa Hiroaki 4
#3 Sato Noriko 1

Latest patents

Publication Filing date Title
JP2009072769A Sewage treatment system
JP2009056346A Polluted muddy water treatment system
JP2008296079A Polluted muddy water treatment system
JPH1170302A Treatment agent for purifying and separating pollutant
JPH10499A Method for improving dredged solid-liquid separation soil
JPH0739900A Dehydration treatment for waste containing oil and water
JPH05220500A Treatment of bag-type dehydration of sludge
JPH02284700A Treating agent for purifying and separating sludge
JPH03207498A Soil hardening agent
JPH02122900A Treating agent for dehydrating, coagulating and stabilizing mud and dehydrating, coagulating and stabilizing treatment of mud
JPH0252098A Treatment of dredging sludge with dehydrating agent