Patents by Inventor Isao Kuboki

Isao Kuboki 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).

  • Die casting machine
    Patent number: 6953079
    Abstract: A die casting machine injecting and filling a molten metal into a cavity formed between a pair of dies so as to cast a product, comprising an ejecting pin for ejecting a casting by its front and sticking out inside the cavity and a powder feeder for feeding a powder release agent for promoting release of the casting from the dies, the ejecting pin including a release agent feed path for guiding powder release agent fed from the powder feeder to a front end of the ejecting pin and feeding it to the cavity.
    Type: Grant
    Filed: September 15, 2003
    Date of Patent: October 11, 2005
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Kazuhiro Suzuki, Shoko Kubota, Kazumi Tsuruda, Isao Kuboki, Toshiaki Toyoshima
  • Die casting machine
    Publication number: 20040099399
    Abstract: A die casting machine injecting and filling a molten metal into a cavity formed between a pair of dies so as to cast a product, comprising an ejecting pin for ejecting a casting by its front and sticking out inside the cavity and a powder feeder for feeding a powder release agent for promoting release of the casting from the dies, the ejecting pin including a release agent feed path for guiding powder release agent fed from the powder feeder to a front end of the ejecting pin and feeding it to the cavity.
    Type: Application
    Filed: September 15, 2003
    Publication date: May 27, 2004
    Applicant: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Kazuhiro Suzuki, Shoko Kubota, Kazumi Tsuruda, Isao Kuboki, Toshiaki Toyoshima
  • Process for working .beta. type titanium alloy
    Patent number: 5217548
    Abstract: A process for working .beta. titanium alloy comprises the steps of first elongating the alloy at a temperature not higher than a .beta. transus temperature and at a working ration of 30% or more. Next, conducting a subsequent aging treatment. Then, elongating the alloy at a temperature not higher than the aging treatment temperature and at a working ratio of 70% or more when combined with that in the first step for elongating. Then a recrystallization treatment is carried out at a treating temperature not higher than the .beta. transus temperature or isothermal working is carried out within a temperature range of the .beta. transus temperature minus 200.degree. C. to the .beta. transus.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: June 8, 1993
    Assignee: Seiko Instruments Inc.
    Inventors: Isao Kuboki, Kenzo Kato, Yutaka Wakabayashi
  • Method for working nickel-base alloy
    Patent number: 4935069
    Abstract: An hard ornamental alloy can be obtained by subjecting a nickel-base alloy to cold working, warm working or both workings at a working reduction of 35% or above and then subjecting it to hot working at 800.degree. to 1000.degree. C. and at a strain rate of from 10.sup.-5 S.sup.-1 to 10.degree.S.sup.-1.
    Type: Grant
    Filed: September 7, 1988
    Date of Patent: June 19, 1990
    Assignee: Seiko Instruments Inc.
    Inventors: Isao Kuboki, Kenzo Kato, Shunji Watanabe