Patents by Inventor Hideo Hironaga

Hideo Hironaga 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).

  • Spinning oil for synthetic fiber
    Patent number: 6695971
    Abstract: It is an object of the invention to provide a spin finish generating neither tar nor scum in false twisting treatment either of the hot plate contact heating type or of the non-contact heating type using a radiation type high temperature heater and thus enabling long term stable false twisting treatment. This invention provides a spin finish for synthetic fibers which satisfies the following relations (1) and (2): 10≦T≦22  (1) 0≦Re≦0.25  (2) where T is the surface tension (mN/m) of the oil after allowing the same to stand at 220° C. for 1 hour and Re is the percent residue (% by weight) on heating of the oil after allowing the same to stand at 400° C. for 24 hours.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: February 24, 2004
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Satoru Murakami, Hideo Hironaga
  • Spinning oil for synthetic fiber
    Publication number: 20030050722
    Abstract: It is an object of the invention to provide a spin finish generating neither tar nor scum in false twisting treatment either of the hot plate contact heating type or of the non-contact heating type using a radiation type high temperature heater and thus enabling long term stable false twisting treatment.
    Type: Application
    Filed: October 4, 2001
    Publication date: March 13, 2003
    Inventors: Saturo Murakami, Hideo Hironaga