Patents by Inventor Akimitsu Matsusaki

Akimitsu Matsusaki 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).

  • Fiber reinforced composite materials
    Patent number: 5789073
    Abstract: Tough laminated composite material which comprise (A) long reinforcing fibers, (B) a matrix resin mixed with the long reinforcing fibers and (C1) a resin, preferably in the form of fine resin particles, forming a phase separate from said matrix resin which is localized in inter-layer zones, wherein 90% or more of said resin (C1) is localized in inter-layer zones and/or wherein the border length factor in the inter-layer zones is 2.5 or more and prepregs used to form the composite materials.
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: August 4, 1998
    Assignee: Toray Industries, Inc.
    Inventors: Nobuyuki Odagiri, Shigeru Suzue, Akimitsu Matsusaki, Hajime Kishi, Takeji Nakae
  • Fiber reinforced composite materials having resin practice inter-layer zones
    Patent number: 5028478
    Abstract: Tough laminated composite material which comprise (A) long reinforcing fibers, (B) a matrix resin mixed with the long reinforcing fibers and (C1) a resin, preferably in the form of fine resin particles, forming a phase separate from said matrix resin which is localized in inter-layer zones, wherein 90% or more of said resin (C1) is localized in inter-layer zones and/or wherein the border length factor in the inter-layer zones is 2.5 or more and prepegs used to form the composite materials.
    Type: Grant
    Filed: December 24, 1987
    Date of Patent: July 2, 1991
    Assignee: Troy Industries, Inc.
    Inventors: Nobuyuki Odagiri, Shigeru Suzue, Hajime Kishi, Takeji Nakae, Akimitsu Matsusaki