Patents by Inventor Tsuyoshi Imakita

Tsuyoshi Imakita 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).

  • Method of cleaning inside of pressure vessel for blasting
    Patent number: 8512479
    Abstract: Provided is a method of cleaning the inside of a pressure vessel for blasting to enable a short-time treatment regardless of the state of residual substances. This method includes: a step of setting an explosive for cleaning, different from an explosive for blasting, in an amount necessary for decomposing a residue of the object inside of a pressure vessel after a blasting step of setting and blasting the object and the explosive for blasting in the pressure vessel; and a step of decomposing the residue by exploding the explosive for cleaning in the pressure vessel.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: August 20, 2013
    Assignee: Kobe Steel, Ltd.
    Inventors: Kiyoshi Asahina, Ryusuke Kitamura, Keiichi Ishiyama, Tsuyoshi Imakita, Shigeo Tachibana
  • Method of Cleaning Inside of Pressure Vessel for Blasting
    Publication number: 20090165636
    Abstract: Provided is a method of cleaning the inside of a pressure vessel for blasting to enable a short-time treatment regardless of the state of residual substances. This method includes: a step of setting an explosive for cleaning, different from an explosive for blasting, in an amount necessary for decomposing a residue of the object inside of a pressure vessel after a blasting step of setting and blasting the object and the explosive for blasting in the pressure vessel; and a step of decomposing the residue by exploding the explosive for cleaning in the pressure vessel.
    Type: Application
    Filed: April 26, 2007
    Publication date: July 2, 2009
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO
    Inventors: Kiyoshi Asahina, Ryusuke Kitamura, Keiichi Ishiyama, Tsuyoshi Imakita, Shigeo Tachibana
  • Treated waste, method for making the same and apparatus for making the same
    Patent number: 6296786
    Abstract: A treated waste has been treated so as to prevent diffusion of a substance to be disposed, of e.g., radionuclide “I”, that tends to occur when the waste is disposed of in reducing environment at an ultra-deep underground. The treated waste has a low-resolution compound containing “I”, e.g., “AgI”, and a high oxygen potential agent having a higher oxygen potential than the compound, e.g., “Fe2O3”. Ionization of the substance to be disposed, attributable to reduction of the compound, can be suppressed over a long time.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: October 2, 2001
    Assignee: Kabushiki Kaisha Kobe Seiko Sho.
    Inventors: Ryutaro Wada, Tsutomu Nishimura, Tsuyoshi Imakita, Yoshitaka Kurimoto, Yasushi Sugimura