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YAMAMOTO KAGAKU KOGYO KK

Overview
  • Total Patents
    12
About

YAMAMOTO KAGAKU KOGYO KK has a total of 12 patent applications. Its first patent ever was published in 1980. It filed its patents most often in Japan. Its main competitors in its focus markets organic fine chemistry, pharmaceuticals and environmental technology are DELALANDE SA, ALFA FARMACEUTICI SPA and SMITHKLINE CORP.

Patent filings in countries

World map showing YAMAMOTO KAGAKU KOGYO KKs patent filings in countries
# Country Total Patents
#1 Japan 12

Patent filings per year

Chart showing YAMAMOTO KAGAKU KOGYO KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Inoue Hiroshige 12
#2 Fukushima Kenichi 8
#3 Nishiguchi Ikuzo 5
#4 Nishiguchi Ikuzou 4
#5 Hirashima Tsunesuke 4
#6 Nishi Kenji 3
#7 Morita Masanori 3
#8 Mizuno Takumi 2
#9 Tsuemura Yoshiharu 2
#10 Yamamoto Keiki 1

Latest patents

Publication Filing date Title
JPH0269473A Production of thiopheneacetic acid derivative
JPH01175958A Production of 3-propionylsalicylic acid derivative
JPS6393748A Production of 2-(4-substituted phenyl)proponic acid derivative
JPS61112067A Production of 3-methylflavone-8-carboxylic acid derivative
JPS61225177A Production of n-(3,4,5-trimethoxycinnamoyl)piperazine derivative
JPS60237041A Preparation of 3-propionylsalicylic acid derivative
JPS5967242A 3-propionylsalicylic acid derivative and preparation thereof
JPS5967281A 3-methylflavone-8-carboxylic acid derivative and its preparation
JPS57118562A Preparation of 4-hydroxyindole derivative
JPS5724362A Preparation of pindolol
JPS56115744A Nitrobenzene derivative and its preparation
JPS56115771A Preparation of 4-hydroxyindole