Patents by Inventor Nobuhiro Echida

Nobuhiro Echida has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Coated metal pipe
    Patent number: 4091134
    Abstract: A coated metal pipe which comprises a pipe coated with a composition comprising2 to 40 wt. parts of low molecular weight oxidized polymer of polypropylene or propylene-ethylene copolymer;5 to 40 wt. parts of a rubber component selected from a group consisting of styrene-butadiene copolymer, polyisoprene, butyl rubber, chlorosulfonic polyethylene and polyisobutylene;5 to 50 wt. parts of a tackifier and 10 to 80 wt. parts of asphalt.
    Type: Grant
    Filed: August 24, 1976
    Date of Patent: May 23, 1978
    Inventors: Masaru Uemura, Hitoshi Kuroki, Nobuhiro Echida, Yujiro Kosaka
  • Coated metal pipe
    Patent number: 3967020
    Abstract: A coated metal pipe which comprises a pipe coated with a composition comprising 5-30 wt parts of ethylene-vinylacetate copolymer having a vinylacetate content of 15-40 wt% and a melt index of 1-1,000 g/10 min; 2-20 wt parts of low molecular weight oxidized polymer of polypropylene or propylene-ethylene copolymer; 5-40 wt parts of styrene butadiene copolymer; 5-50 wt parts of a tackifier and 10-80 wt parts of asphalt.
    Type: Grant
    Filed: November 20, 1974
    Date of Patent: June 29, 1976
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Masaru Uemura, Hitoshi Kuroki, Nobuhiro Echida, Yujiro Kosaka, Kanji Otomo