Learn more

SUMITOMO DUREZ CO

Overview
  • Total Patents
    568
About

SUMITOMO DUREZ CO has a total of 568 patent applications. Its first patent ever was published in 1968. It filed its patents most often in Japan, United States and Canada. Its main competitors in its focus markets macromolecular chemistry and polymers, materials and metallurgy and machines are BORDEN UK LTD, HUETTENES ALBERTUS and CL IND INC.

Patent filings in countries

World map showing SUMITOMO DUREZ COs patent filings in countries

Patent filings per year

Chart showing SUMITOMO DUREZ COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Saeki Yukio 116
#2 Tokunaga Yukio 65
#3 Nakamura Masayuki 58
#4 Nemoto Shigeru 36
#5 Sasaki Tatsuro 34
#6 Arita Yasushi 32
#7 Hirano Kazuhisa 30
#8 Kikuga Toyoji 28
#9 Ozeki Shinichi 27
#10 Tachikawa Toshiyuki 26

Latest patents

Publication Filing date Title
US6326453B2 Process for producing phenol resin
JP2001316945A Carbon fiber and fibrous activated carbon
JP2001316660A Liquid phenol resin for wet friction material and its preparation process
JP2001294638A Polyamide-modified novolak phenolic resin and fiber
JP2001288238A Cured phenol resin and active carbon prepared therefrom
JP2001287904A Carbon material and method for producing the same
JP2001278609A Method of producing oxygen-containing carbonaceous material
JP2001261766A Phenol resin for photoresist
JP2001264974A Phenolic resin for photoresist
JP2001261781A Epoxy resin curing agent
JP2001253924A Phenolic resin composition
JP2001253932A Phenol resin composition
JP2001247639A Method for manufacturing novolak phenolic resin
JP2001249449A Phenolic resin for photoresist
JP2001240645A Method of producing powdery self-curable phenol resin
JP2001213941A Resin composition for friction material
JP2001172348A Method for producing phenolic resin
JP2001172346A Preparation method of powder cresol type phenolic resin
JP2001172555A Flame-retardant epoxy resin powder coating material
JP2001172083A Method of producing oxygen-including carbon material