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TOA NENRYO KOGYO KK

Overview
  • Total Patents
    1,696
About

TOA NENRYO KOGYO KK has a total of 1,696 patent applications. Its first patent ever was published in 1965. It filed its patents most often in Japan, United States and EPO (European Patent Office). Its main competitors in its focus markets macromolecular chemistry and polymers, machines and chemical engineering are STANDARD OIL CO, EXXON MOBILE CHEMICAL PATENTS and MOBIL OIL CORP.

Patent filings per year

Chart showing TOA NENRYO KOGYO KKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ueno Hiroshi 183
#2 Inaba Naomi 146
#3 Imai Masafumi 85
#4 Imai Chihiro 84
#5 Furuhashi Hiroyuki 83
#6 Inoue Hiroshi 79
#7 Yamamoto Noboru 78
#8 Miyazaki Makoto 78
#9 Makishima Tokuo 77
#10 Okumura Yoshiharu 75

Latest patents

Publication Filing date Title
US5259978A Traction fluid composition comprising a cyclohexyl diester and branched poly-α-olefin
US5171481A Synthetic traction fluid
US5166104A Polysiloxazanes, silicon oxynitride fibers and processes for producing same
US5151390A Silicon nitride-based fibers and composite material reinforced with fibers
US5217699A Calcium-phosphate type hydroxyapatite
US5145728A Oriented polyethylene film
US5127822A Combustion apparatus with atomizer and method of controlling same
US5098894A Binderless zeolite catalysts, production thereof and catalytic reaction therewith
US4974780A Ultrasonic fuel injection nozzle
EP0342882A2 Damping system for a rotating shaft
EP0342041A1 Electro-rheological fluid
US4950562A Solid electrolyte type fuel cells
US4912179A Bisphenol A epoxy resin mixtures with aromatic di-secondary amine
US4886860A Polymetalosilazane and process for preparing same
US5032551A Silicon nitride based ceramic fibers, process of preparing same and composite material containing same
EP0331424A1 Molded articles formed of silicon nitride based ceramic and process for producing same
US4912920A Ultrasonic burner system for regenerating a filter
US5085792A Synthetic traction fluid
US4978468A Traction fluid
EP0355231A1 Heat-resistant catalyst carrier moldings and catalysts for combustion