Patents by Inventor Norimitsu Hamajima

Norimitsu Hamajima 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).

  • Patent number: 6706651
    Abstract: A float textile having an improved optical interference function, containing a float texture yarn formed by combining three or more multi-filament yarns each comprising, as a constituent unit, optically interfering mono-filaments which are formed by alternately laminating layers of at least two polymers having different refractive indices and which have flattening ratio of 4 to 15 and by interlacing the multi-filament yarns to form 20 or less interlaces per meter, used as a warp float and/or weft float component, and having a float number of 2 or more. A spun-dyed textile which is formed by combining a large number of optically interfering multi-filament yarns can provide a float textile which can exhibit a bright color development effect and can expand the utility thereof to room interior and car interior fields.
    Type: Grant
    Filed: April 26, 2001
    Date of Patent: March 16, 2004
    Assignees: Teijin Limited, Nissan Motor Co., Ltd.
    Inventors: Norimitsu Hamajima, Hiroshi Goto, Manabu Tachibana, Takanori Taguchi, Kazuhiro Masumoto
  • Patent number: 6537640
    Abstract: Provided is a pile fabric in which non-twist interlaced yarns composed of non-torque or low-torque polyester multi-filaments having a torque of 0 or 100 turns/meter or less are laid out in a flattened state as both warp and weft yarns constituting a ground portion of the pile fabric, which has no thick feel of the ground, excellent in formability and sewing property, and also makes it possible to form a short pile length (less than 1.5 mm). Further, diverse pile fabrics such as velvet-like, amundsen-like, astrakhan-like and suede-like fabrics, are also realized by specifying the fineness of the constituent filaments and the yarn form of the pile yarn.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: March 25, 2003
    Assignee: Teijin Limited
    Inventors: Tsutomu Nakamura, Manabu Toyao, Norimitsu Hamajima
  • Publication number: 20020016117
    Abstract: A float textile having an improved optical interference function, containing a float texture that yarn formed by combining three or more multi-filament yarns each comprising, as a constituent unit, optically interfering mono-filaments which are formed by alternately laminating layers of at least two polymers having different refractive indices and which have a flattening ratio of 4 to 15 and by interlacing the multi-filament yarns to form 20 or less interlaces per meter is used as a warp float and/or weft float component, and having a float number of 2 or more.
    Type: Application
    Filed: April 26, 2001
    Publication date: February 7, 2002
    Inventors: Norimitsu Hamajima, Hiroshi Goto, Manabu Tachibana, Takanori Taguchi, Kazuhiro Masumoto