Patents by Inventor Hiromi Ohmoto

Hiromi Ohmoto 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).

  • Crystalline polyolefin resin composition and electrical insulating part comprising said composition
    Patent number: 5883178
    Abstract: The invention relates to crystalline polyolefin resin compositions obtained by blending 40 to 85% by weight of a crystalline propylene polymer, 3 to 40% by weight of an inorganic filler, 7 to 30% by weight of a halogen-containing flame retardant comprising ethylenebistetrabromophthalimide, decabromodiphenylethane, or their mixture, and 3 to 15% by weight of a flame retarding auxiliary; and electrical insulating parts obtained by molding the crystalline polyolefin resin composition.By using the crystalline polyolefin resin compositions of the invention, blooming (separation, in a powder-like form, of an ingredient) on the surface of a mold at the time of injection molding can be prevented, deterioration in appearance of final products due to the transfer of the bleeded ingredient to the surface of the mold is obviated, and decrease in productivity caused by wiping the bleeded ingredient off the mold can be avoided.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: March 16, 1999
    Assignee: Chisso Corporation
    Inventors: Hiromi Ohmoto, Mitsuhiro Touhara