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HASHIMOTO CHEMICAL IND

Overview
  • Total Patents
    20
About

HASHIMOTO CHEMICAL IND has a total of 20 patent applications. Its first patent ever was published in 1985. It filed its patents most often in United States, EPO (European Patent Office) and Republic of Korea. Its main competitors in its focus markets surface technology and coating, semiconductors and electrical machinery and energy are SEO SANG-JOON, KGT GRAPHIT TECHNOLOGIE GMBH and NANOFILM TECHNOLOGIES INT.

Patent filings per year

Chart showing HASHIMOTO CHEMICAL INDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ohmi Tadahiro 14
#2 Maeno Matagoro 11
#3 Kikuyama Hirohisa 7
#4 Miki Nobuhiro 7
#5 Miki Masahiro 5
#6 Masahiro Miki 3
#7 Hirohisa Kikuyama 3
#8 Izumi Hiroto 3
#9 Tadahiro Ohmi 3
#10 Mikasa Yutaka 3

Latest patents

Publication Filing date Title
US5837323A Surface improving method of polypropylene products for plating, joining or coating
US5277835A Surface treatment agent for fine surface treatment
EP0405886A2 Surface treatment agent for fine surface treatment
KR950012809B1 Metal material with film passivated by fluorination and apparatus composed of the metal material
EP0604393A2 Diluted anhydrous hydrogen fluoride gas generator for use in dry etching apparatus
EP0352061A2 Metal material with film passivated by fluorination and apparatus composed of the metal material
US4806332A Method for preventing anhydrous potassium fluoride from solidification
US4668497A Process for purifying hydrogen fluoride