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KOHJIN CO

Overview
  • Total Patents
    1,095
  • GoodIP Patent Rank
    216,420
About

KOHJIN CO has a total of 1,095 patent applications. Its first patent ever was published in 1968. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets machines, organic fine chemistry and surface technology and coating are TRESPAPHAN GMBH, MITSUI POLYCHEMICALS LTD and COMPOSITE CONTAINER CORP.

Patent filings per year

Chart showing KOHJIN COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Isozaki Hideo 64
#2 Maruyama Takashi 63
#3 Mizutani Tomoji 60
#4 Oka Hiroshi 53
#5 Hamada Kazuhiro 51
#6 Mukoyama Hideaki 33
#7 Ichiki Makoto 33
#8 Sato Tadashi 33
#9 Nagamoto Akimoto 31
#10 Katsuta Shinichiro 29

Latest patents

Publication Filing date Title
JP2012246287A Method for utilizing extraction residue of yeast extract
JP2012146636A Battery case packaging material for cold molding, including biaxially-stretched polybutylene terephthalate film
JP2012117046A Antistatic pressure-sensitive adhesive composition and antistatic pressure-sensitive adhesive obtained by using the same, antistatic pressure-sensitive adhesive sheet
JP2012111937A Antistatic pressure-sensitive adhesive composition, antistatic pressure-sensitive adhesive obtained using the same, and antistatic pressure-sensitive adhesive sheet
JP2013001856A Mist inhibitor
JP2013001654A Method for producing unsaturated quaternary ammonium salt compound, and antistatic agent and antistatic composition comprising the same
JP2012231747A Natural emulsifier
JP2012219133A Ultraviolet-curable hard coat composition
JP2012219132A Hard coat composition for ultraviolet-curable plastic base material
JP2012214248A Retort packaging material including biaxially stretched polybutylene terephthalate film
JP2012210785A Gas barrier film and method for manufacturing the same
JP2012196188A Method for producing seasoning increasing full-bodied taste
JP2012183732A Polyethylene-based crosslinked shrink film in excellent shrink finish quality
JP2012172091A Biaxially stretched polybutylene terephthalate film and battery case packaging material for cold forming using the same
JP2012171094A Laminated sheet for thermoforming including biaxially-stretched polybutylene terephthalate-based film
JP2012131932A Aromatic vinyl-based polymer containing hydroxyl, production method thereof, and polystyrene resin foaming particle, preliminarily foamed particle and foam molding each including the same
JP2011231304A Oil mist inhibitor for use in water-based processed oil
JP2012121241A Biaxially-stretched polybutylene terephthalate film
JP2012102231A Resin-compatibilizing agent including polyoxazoline
JP2012097005A Method of manufacturing hydroxyalkyl (meth) acrylamide