Learn more

DUPONT TORAY CO LTD

Overview
  • Total Patents
    30
About

DUPONT TORAY CO LTD has a total of 30 patent applications. Its first patent ever was published in 1997. It filed its patents most often in United States, EPO (European Patent Office) and China. Its main competitors in its focus markets macromolecular chemistry and polymers, machines and textiles and paper are THERMOCELL DEV LTD, SANYU RESIN KK and PILKINGTON AEROSPACE INC.

Patent filings in countries

World map showing DUPONT TORAY CO LTDs patent filings in countries
# Country Total Patents
#1 United States 20
#2 EPO (European Patent Office) 8
#3 China 2

Patent filings per year

Chart showing DUPONT TORAY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Uhara Kenji 9
#2 Umezawa Masao 8
#3 Yasuda Naofumi 5
#4 Sawasaki Kouichi 5
#5 Matsuda Toshikazu 4
#6 Nakanishi Hideki 4
#7 Moriyama Hideki 4
#8 Nishikawa Hiroshi 3
#9 Machida Hideaki 3
#10 Dunbar Meredith L 1

Latest patents

Publication Filing date Title
US7273661B2 Electrically conductive polyimide compositions having a carbon nanotube filler component and methods relating thereto
US6916544B2 Laminate type materials for flexible circuits or similar-type assemblies and methods relating thereto
EP1356144A1 Elastomeric polyurethane fiber with high heat-set efficiency
US6908685B2 Polyimide film, method of manufacture, and metal interconnect board with polyimide film substrate
US6555238B2 Polyimide film, method of manufacture, and metal interconnect board with polyimide film substrate
US6548179B2 Polyimide film, method of manufacture, and metal interconnect board with polyimide film substrate
US6639041B2 Spandex having low set at low temperatures
US6492031B1 Reflector substrate for illumination device and reflector for illumination device
US6572050B1 Process for winding elastomeric fiber package
US6372834B1 Stabilized spandex
US6348263B1 Polyparaphenylene terephthalamide fiber and method for producing the same
US6096252A Process of making polyurethane fiber
US6403712B1 Process for the manufacture of spandex and the spandex made thereby
US6399003B1 Process for making melt-spun spandex
US6277495B1 Polyimide film, a method for its manufacture and a polyimide film containing metal laminated plate
US6225435B1 Stable polyurethaneurea solutions
US5962130A Durable polyurethane fiber and method for the manufacture thereof
US6196490B1 Elastic yarn winder and method for using same
US6214145B1 Coalesced multifilament spandex and method for its preparation