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SUMITOMO SEIKA KK

Overview
  • Total Patents
    14
About

SUMITOMO SEIKA KK has a total of 14 patent applications. Its first patent ever was published in 1984. It filed its patents most often in Japan and China. Its main competitors in its focus markets environmental technology, audio-visual technology and medical technology are TUCHINSKIJ VLADIMIR R, CHENGDU SI BO LI TECH CO LTD and TOHO RIKA KOGYO KK.

Patent filings in countries

World map showing SUMITOMO SEIKA KKs patent filings in countries
# Country Total Patents
#1 Japan 13
#2 China 1

Patent filings per year

Chart showing SUMITOMO SEIKA KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kawamura Masao 5
#2 Itsuda Hiroshi 3
#3 Kimura Shigeo 3
#4 Sato Makoto 3
#5 Kato Kunioki 3
#6 Takagi Shuji 2
#7 Ogasawara Joji 2
#8 Ozaki Yoshitaka 1
#9 Kano Kenji 1
#10 Yoshikawa Masato 1

Latest patents

Publication Filing date Title
JPH04283560A Production of 2,6-di-tert-butyl-4-mercaptophenol
JPS6248667A Process for producing thiocarbamate derivative
JPS6222765A N- (6-alkoxy-2-pyridyl) -N-alkyldithiocarbamic acid alkali metal salt and process for producing the same
JPS6222766A S- (2,4-dinitrophenyl) N- (6-alkoxy-2-pyridyl) -N-alkyldithiocarbamate and process for producing the same