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NIPPON HYDROGENE KOGYO

Overview
  • Total Patents
    36
About

NIPPON HYDROGENE KOGYO has a total of 36 patent applications. Its first patent ever was published in 1979. It filed its patents most often in Japan. Its main competitors in its focus markets organic fine chemistry, environmental technology and macromolecular chemistry and polymers are ZHEJIANG HUANGMA TECHNOLOGY CO LTD, TABATA MASAYOSHI and IT RESINE SOC.

Patent filings in countries

World map showing NIPPON HYDROGENE KOGYOs patent filings in countries
# Country Total Patents
#1 Japan 36

Patent filings per year

Chart showing NIPPON HYDROGENE KOGYOs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hyoda Toshiharu 12
#2 Hasegawa Yoichi 10
#3 Toda Fumio 8
#4 Nakagawa Mineo 7
#5 Bansho Takashi 6
#6 Fujita Hiroyuki 4
#7 Kawai Yoshio 3
#8 Yoshino Katsumi 3
#9 Takase Masaaki 3
#10 Sawada Hirotoshi 3

Latest patents

Publication Filing date Title
JPH10237046A Production of hexahydropyridazine and tetrahydropyridazine
JPH1150286A Production of high-purity organic carboxylic acid choline salt and high-purity choline
JPH1150285A Production of high-purity beta-hydroxyethyltriethyl ammonium hydroxide
JPH1143473A 1,2,4-butanetricarboxylic acid trihydrazide
JPH10219265A Simple gel fuel composition
JPH10182604A Production of alicyclic hydrazine derivative
JPH1072425A Production of monoethylhydrazine
JPH1029981A Production of hexahydropyridazine compound
JPH09302367A Convenience gel fuel composition
JPH09208553A Production of carbazinic acid ester
JPH09208564A Production of triallyl isocyanurate
JPH09157238A Production of t-butylhyrazine hydrogen halide salt
JPH09110875A Ascorbic acid derivative and its production
JPH08301854A Production of pyrazolones
JPH08269014A Production of pyrazole
JPH08245460A Production of optically active bis-beta-naphthol compounds and optically active quaternary ammonium salts
JPH08218191A Production of high purity choline
JPH08119911A Production of choline carbonate and choline bicarbonate having high purity
JPH07330869A Heat-resistant epoxy resin composition having excellent normal-temperature stability and curing agent for epoxy resin
JPH07247247A Quaternary ammonium hydroxide, inclusion complex of its salt and production of the same inclusion complex