Patents by Inventor Hideaki Toda

Hideaki Toda 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).

  • Patent number: 5252385
    Abstract: An elastomer film of a thermoplastic elastomer composition comprising 30-70 weight % of an ethylene-propylene-diene copolymer and 70-30 weight % of an ethylene-vinyl acetate copolymer having a vinyl acetate content of 5-30 weight % and a melt index of 0.2-25 g/10 minutes, the elastomer film having a thickness of 10-60 .mu.m, and a draw ratio expressed by a heat shrinkage ratio at 50.degree. C. which is 5-35% in an MD direction and 5-25% in a TD direction, the ratio of the draw ratio in an MD direction to the draw ratio in a TD direction being 3 or less, is produced by an air-cooled inflation method.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: October 12, 1993
    Assignee: Tonen Sekiyukagaku Kabushiki Kaisha
    Inventors: Seiji Kagawa, Hideaki Toda, Yoshihiro Uotome
  • Patent number: 5218036
    Abstract: Shrinkable film and articles prepared therefrom which shrink more than 5% when heated to a temperature of 50.degree. C. are disclosed. The shrinkable film is prepared by stretching a polymer film of EPDM or EPM and EVA and talc more than 1.5 times in at least one direction at specified temperatures.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: June 8, 1993
    Assignee: Tonen Sekiyukagaku K.K.
    Inventors: Seiji Kagawa, Hideaki Toda, Yoshinaga Murakami
  • Patent number: 5057252
    Abstract: A method of forming a heat-resistant product, produced from a polymer composition comprising 40-70 weight % of a thermoplastic elastomer containing a repeating unit derived from ethylene and a repeating unit derived from propylene and 60-30 weight % of an ethylene-vinyl acetate copolymer containing 7.5 weight % or more of a vinyl acetate repeating unit, which comprises blending the polymer composition at a temperature of 160.degree. C. or less, molding it at a temperature of 180.degree. C. or less, and then cross-linking the resulting molded product by irradiating it with an electron beam or by heating to produce a foamed product which has good shape memory characteristics.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: October 15, 1991
    Assignee: Tonen Sekiyukagaku Kabushiki Kaisha
    Inventors: Seiji Kagawa, Hideaki Toda, Shinichiro Nomura
  • Patent number: 4945127
    Abstract: A heat-resistant formed product produced from a polymer composition comprising 40-70 weight % of a thermoplastic elastomer containing a repeating unit derived from ethylene and a repeating unit derived from propylene and 60-30 weight % of an ethylene-vinyl acetate copolymer containing 7.5 weight % or more of a vinyl acetate repeating unit, by blending the polymer composition at a temperature of 160.degree. C. or less, molding it at a temperature of 180.degree. C. or less, and then cross-linking the resulting molded product by irradiating electron beam or heating. The formed product also has good shape memory characteristics.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: July 31, 1990
    Assignee: Tonen Sekiyukagaku Kabushiki Kaisha
    Inventors: Seiji Kagawa, Hideaki Toda, Shinichiro Nomura