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HIRAYAMA CHUICHI

Overview
  • Total Patents
    39
About

HIRAYAMA CHUICHI has a total of 39 patent applications. Its first patent ever was published in 1985. It filed its patents most often in Japan, United States and Canada. Its main competitors in its focus markets machines, chemical engineering and pharmaceuticals are NIPPON PULP IND CO LTD, LANG KO C and FUJIMURA TADAMASA.

Patent filings in countries

World map showing HIRAYAMA CHUICHIs patent filings in countries

Patent filings per year

Chart showing HIRAYAMA CHUICHIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hirayama Chuichi 39
#2 Ihara Hirotaka 33
#3 Hidachi Kiyoshi 8
#4 Okawa Kohei 8
#5 Fujikake Shiro 8
#6 Hiraoka Keijun 5
#7 Aihara Katsutoshi 4
#8 Morimoto Sunao 4
#9 Motozato Yoshiaki 4
#10 Iida Noboru 3

Latest patents

Publication Filing date Title
JPH075161A Filler for high performance liquid chromatography
JPH06142505A Production of monodisperse fine spherical particle
US5279821A Pyrogen adsorbent containing amide groups
JPH059234A Pyrogen-adsorbing substance
JPH04256437A Pyrogen adsorbent
JPH04256438A Pyrogen adsorbent
JPH04246436A Large pore diameter porous spherical polyamino acid particle and its production
JPH04247235A Adsorbent for beta2-microglobulin
JPH04246434A Porous spherical particle of polyamino acid and its production
CA1325203C Use of porous spherical grains of poly(ó-amino acid) as a filler in chromatography
JPH04156941A Adsorbent and production thereof
JPH04156943A Pyrogen adsorbent
JPH0436328A Porous and spherical polyamino acid particle having large pore diameter and its preparation
JPH03278835A Heat radiating substance-adsorbing material
JPH03242310A Spherical porous carbon particle and production thereof
JPH03157135A Adsorbent for exothermic material
EP0362879A1 Pyrogen-adsorbing polymers
JPH02211243A Exothermic substance adsorbing body
JPH03106443A Globular porous carbon particle and preparation thereof
JPH0299860A Packing agent for liquid chromatography