Patents by Inventor Shimpei Itoh

Shimpei Itoh 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).

  • Two stage flameproofing of cellulosic fabric
    Patent number: 4673598
    Abstract: The present invention relates to a flameproofing process which comprises treating a woven or knitted fabric comprising a cellulosic fiber with a boron hydride compound and/or a metal borohydride compound, followed by treating it with an amidophosphazene compound. According to the invention, a flameproofed product excellent in whiteness degree is obtained and, when the starting fabric is a lightly dyed fabric, a flameproofed product excellent in color tone is obtained.
    Type: Grant
    Filed: May 14, 1986
    Date of Patent: June 16, 1987
    Assignee: Nitto Boseki Co., Ltd.
    Inventors: Shimpei Itoh, Tadao Sasakura
  • Cold padding batch dyeing process for tubular knitted fabrics
    Patent number: 4285694
    Abstract: A cold padding batch dyeing process for a tubular knitted fabric comprises feeding the fabric into a padding tank, subjecting it to air inflating, blowing compressed air into the fabric to expand it into its original tubular shape, squeezing the fabric at a squeezing rate of 95 to 120% by passing it between a pair of mangles each having a layer of rubber having a Shore hardness of 55 to 70, and leaving the fabric for ageing over a period of at least four hours. The length of time between entry of the fabric into the padding tank and its departure from the mangles is controlled to 10 to 20 seconds.
    Type: Grant
    Filed: December 19, 1979
    Date of Patent: August 25, 1981
    Assignee: Nittobo Itamikako Co., Ltd.
    Inventors: Shimpei Itoh, Masaru Daimon, Tadashi Kato