Patents by Inventor Yoshihito Ohkawa

Yoshihito Ohkawa 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).

  • Publication number: 20070267607
    Abstract: A flame-retardant polyamide composition comprising 10 to 80% by mass of a polyamide (A), 5 to 40% by mass of a flame retardant (B), 0.5 to 10% by mass of zinc borate and at least one other salt of zinc (C), 0 to 60% by mass of an inorganic reinforcing material (D), and 0 to 5% by mass of a drip preventing agent (E). The composition is advantageous in that it is free from environmental problems caused by an antimony compound and avoids a problem in productivity caused by the generation of gas which is the main cause of a mold deposit in the case of the combination use with a flame retardant containing bromine. In addition, the composition can exhibit excellent flame retardancy, toughness and melt fluidity, as well as good heat resistance and color stability in the reflow soldering step required in surface mounting in electric/electronic parts.
    Type: Application
    Filed: January 25, 2005
    Publication date: November 22, 2007
    Applicant: Mitsui Chemicals, Inc.
    Inventor: Yoshihito Ohkawa