Patents by Inventor Motowo Takayanagi

Motowo Takayanagi 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).

  • Copolyesteramide and production of the same
    Patent number: 4433117
    Abstract: A copolymer having high strength and high elastic modulus is produced by copolymerizing (a) a polyamide oligomer prepared from a piperazine compound and an aromatic dicarboxylic acid and (b) a polyalkylene terephthalate monomer or a prepolymer thereof. The copolymer is useful as a rubber reinforcing fiber, a magnetic tape base film, and a coating material.
    Type: Grant
    Filed: March 8, 1983
    Date of Patent: February 21, 1984
    Assignee: Kuraray Co., Ltd.
    Inventors: Motowo Takayanagi, Yoshihumi Murata
  • Polymer composite material
    Patent number: 4228218
    Abstract: A polymer composite material which comprises a first rigid polymeric material composed substantially of rigid molecular chains having an average chain length of 50 A or more, and a second polymeric material composed substantially of flexible molecular chains, wherein said first rigid polymeric material is present in an amount of 20% or less based on the total weight of polymeric material in said composite and said first material is uniformly dispersed in said second polymeric material in a microscopic region of 1 .mu.m or less.
    Type: Grant
    Filed: November 6, 1978
    Date of Patent: October 14, 1980
    Assignees: Motowo Takayanagi, Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Motowo Takayanagi, Tisato Kajiyama