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SHOWA YOTSUKAICHI SEKIYU KK

Overview
  • Total Patents
    15
About

SHOWA YOTSUKAICHI SEKIYU KK has a total of 15 patent applications. Its first patent ever was published in 1977. It filed its patents most often in Japan. Its main competitors in its focus markets environmental technology are SANSHIN KAKO KK, PING DU and NAGASAKI KOGYO KK.

Patent filings in countries

World map showing SHOWA YOTSUKAICHI SEKIYU KKs patent filings in countries
# Country Total Patents
#1 Japan 15

Patent filings per year

Chart showing SHOWA YOTSUKAICHI SEKIYU KKs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Kobayashi Ichiro 6
#2 Komatsu Yasuyuki 5
#3 Takenaga Naoyuki 4
#4 Kobayashi Tomu 3
#5 Yagawa Masao 2
#6 Yokoyama Masayuki 2
#7 Fujiwara Katsusue 2
#8 Hashimoto Yoshihiko 2
#9 Nakano Hiromichi 2
#10 Shibuya Masahiko 2

Latest patents

Publication Filing date Title
JP2004066057A Method of dehydrating sludge
JPH1095989A High performance low sulfur light oil composition
JPH1081828A Low-smoking and lowly odorous asphalt composition for waterproofing work
JPH09176657A Improved semi-blown asphalt composition and its production
JPH09178625A Cap of cap-type lever sample collector
JPH08333586A Production of high-performance low-sulfur gas oil composition
JPH08333584A High-performance low-sulfur content gas oil composition
JPH0610334A Oil water separating device
JPH01231979A Method and device for cleaning viscometer for high-viscosity oil
JPH01224641A Multiprocessing system for vibration type densitometer
JPH01119764A Measuring method of smoke point of fuel oil
JPS60181036A Preparation of 8c aromatic hydrocarbon
JPS5477244A Corrosion prevention using polysulfide produced by oxidation of aqueous ammonium hydrosulfite
JPS5456861A High viscous liquid level measuring device
JPS5456860A Device for measuring liquid level