Patents by Inventor Yasuhiko Hiromoto

Yasuhiko Hiromoto 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).

  • Finishes for filling yarns in air jet loom process
    Patent number: 4676837
    Abstract: The present invention relates to finishes for filling yarns suitable for weaving by AJL. It has been found that a combination of paraffins having a specific carbon distribution and viscosity with specific esters and an amine salt of alkyl phosphate gave an excellent flyability without slack and filling entangling even in AJL process.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: June 30, 1987
    Assignees: Mitsubishi Acetate Kabushiki Kaisha, Matsumoto Yushi-Seiyaku Co., Ltd.
    Inventors: Yasuhiko Hiromoto, Yoji Mizuhiro
  • Flame retardant shaped materials
    Patent number: 3997515
    Abstract: Flame retardant, shaped materials comprising a vinyl polymer of crosslinked structure containing in its vinyl units 40 mole-% or more based on the polymer of COOH groups which have been partly converted to COOM (M: a mono- to tri-valent metal) groups, the COOM group content of said polymer being preferably 0.5 to 40 % by weight in terms of metal content.
    Type: Grant
    Filed: May 10, 1974
    Date of Patent: December 14, 1976
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Kenzo Kosaka, Haruo Miyamoto, Osamu Nakagawa, Susumu Maekawa, Tokuhisa Miyamatsu, Yasuhiko Hiromoto