Patents by Inventor Tokuo Tatsuda

Tokuo Tatsuda 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: 20110224355
    Abstract: The present invention provides a thermoplastic resin composition for a vehicular lamp housing, which is excellent in balance of physical properties with regard to such as impact resistance and fluidity, and of which hot plate weldability, vibration weldability and laser weldability are improved when a vehicular lamp housing is welded with other members.
    Type: Application
    Filed: September 9, 2009
    Publication date: September 15, 2011
    Applicant: NIPPON A&L INC.
    Inventors: Hajime Tomita, Tokuo Tatsuda, Tetsuya Yamamoto, Seiji Tamai
  • Patent number: 4880874
    Abstract: A resin composition comprising(A) 10 to 99% by weight of a polycarbonate resin and(B) 90 to 1% by weight of a resin which comprises(b-1) 100 to 10% by weight of a copolymer which is obtainable by polymerizing 1 to 800 parts by weight of an unsaturated epoxy monomer and 0 to 2,000 parts by weight of other copolymerizable monomer in the presence of 100 parts by weight of an ethylene-.alpha.-olefin base rubber, and(b-2) 0 to 90% by weight of a copolymer which is obtainable by polymerizing at least one monomer selected from the group consisting of aromatic vinyl compounds, cyanated vinyl compounds and alkyl unsaturated carboxylates.
    Type: Grant
    Filed: September 7, 1988
    Date of Patent: November 14, 1989
    Assignee: Sumitomo Naugatuck Co., Ltd.
    Inventors: Mikio Hirai, Tokuo Tatsuda, Tomio Yoshida
  • Patent number: 4855355
    Abstract: A molding resin composition comprising (A) a saturated polyester resin, (B) a graft copolymer and (C) a rubber-reinforced resin, wherein a weight ratio of the saturated polyester resin (A) to a total weight of the graft copolymer (B) and the rubber-reinforced resin (C) is from 95:5 to 5:95, a weight ratio of the graft copolymer (B) to the rubber-reinforced resin is from 100:0 to 5:95, and the graft copolymer (B) is one prepared by copolymerizing an unsaturated epoxide monomer and at least one monomer selected from the group consisting of aromatic vinyl monomers, cyanated vinyl monomers and alkyl unsaturated carboxylates in the presence of an ethylene-.alpha.-olefin base rubber, which can provide a molded article having improved impact strength, weld strength, stiffness and mold shrinkage factor.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: August 8, 1989
    Assignee: Sumitomo Naugatuck Co., Ltd.
    Inventors: Mikio Hirai, Tokuo Tatsuda, Tomio Yoshida