Patents by Inventor Taku Hosokai

Taku Hosokai 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).

  • Polyester container having excellent heat resistance and shock resistance and method of producing the same
    Patent number: 7833467
    Abstract: A polyester container obtained by stretch-forming a preform of a thermoplastic polyester resin formed by injection forming wherein the central portion of the bottom wall is the remaining part of the gate at the time of injection forming, and is formed relatively thicker than the bottom wall surrounding the central portion, and the central portion of the bottom wall is substantially amorphous, and the bottom wall surrounding the central portion is oriented and crystallized. The container exhibits excellent heat resistance and shock resistance despite a thick portion that is the remaining portion of the injection gate is formed at the center of the bottom portion.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: November 16, 2010
    Assignee: Toyo Seikan Kaisha, Ltd.
    Inventors: Ryo Suenaga, Tsutomu Iwasaki, Taku Hosokai, Toshiki Sakaguchi, Hisao Iwamoto
  • FUEL CELL CARTRIDGE
    Publication number: 20090197150
    Abstract: A fuel cell cartridge for containing fuel for fuel cells, comprising a polyester resin, wherein after the fuel is contained and preserved at 60° C. for one week, a change of density at the bottom portion and the mouth portion is 0.01 g/cm3 or less. Even when methanol of a high concentration is contained, the fuel cell cartridge maintains excellent appearance effectively preventing the occurrence of whitening in the container and, particularly, at the mouth portion and the bottom portion thereof, and effectively suppressing a decrease in the shock resistance.
    Type: Application
    Filed: May 24, 2007
    Publication date: August 6, 2009
    Applicants: Toyo Seikan Kaisha, Ltd., Kabushiki Kaisha Toshiba
    Inventors: Kenjiro Tanaka, Daisuke Imoda, Taku Hosokai, Toshiki Sakaguchi, Shojiro Kai, Koichi Kawamura
  • Polyester Container Having Excellent Heat Resistance and Shock Resistance and Method of Producing the Same
    Publication number: 20070290415
    Abstract: A polyester container obtained by stretch-forming a preform of a thermoplastic polyester resin formed by injection forming wherein the central portion of the bottom wall is the remaining part of the gate at the time of injection forming, and is formed relatively thicker than the bottom wall surrounding the central portion, and the central portion of the bottom wall is substantially amorphous, and the bottom wall surrounding the central portion is oriented and crystallized. The container exhibits excellent heat resistance and shock resistance despite a thick portion that is the remaining portion of the injection gate is formed at the center of the bottom portion.
    Type: Application
    Filed: July 25, 2005
    Publication date: December 20, 2007
    Applicant: Toyo Seikan Kaisha, LTD.
    Inventors: Ryo Suenaga, Tsutomu Iwasaki, Taku Hosokai, Toshiki Sakaguchi, Hisao Iwamoto