Patents by Inventor Hirohisa Nara

Hirohisa Nara 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).

  • Process for imparting elasticity to woven textile fabrics
    Patent number: 4051215
    Abstract: The present invention relates to a process for treating woven textile fabrics. In one aspect, the present invention relates to a process for imparting elasticity to a woven textile fabric in its warp direction in which a cellulose reactive resin solution is applied to a woven textile fabric, the fabric compressed in its warp direction by means of a rubber roller and an elastic flexible belt, and then fixed in its altered state.
    Type: Grant
    Filed: December 31, 1975
    Date of Patent: September 27, 1977
    Assignee: Unitika Kabushiki Kaisha
    Inventors: Motohiro Tsuruta, Hiroshiro Kimura, Akio Koshimo, Hirohisa Nara, Tokuju Goto, Kunio Amemiya