Patents by Inventor Takemasa Shibata

Takemasa Shibata 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 for efficient laser isotope separation and enrichment of silicon
    Patent number: 6800827
    Abstract: A method for laser-assisted separation and enrichment of silicon isotopes such as 28Si, 29Si and 30Si on the basis of infrared multiple-photon dissociation of silicon halides represented by Si2F6, wherein the silicon halides are irradiated synchronously with multiple infrared pulsed laser beams at different wavelengths.
    Type: Grant
    Filed: August 7, 2002
    Date of Patent: October 5, 2004
    Assignees: Japan Atomic Energy Research Institute, Nuclear Development Corporation
    Inventors: Atsushi Yokoyama, Hironori Ohba, Masashi Hashimoto, Takemasa Shibata, Shigeyoshi Arai, Takeshi Ishii, Akio Ohya
  • Method for efficient laser isotope separation and enrichment of silicon
    Publication number: 20030034243
    Abstract: A method for laser-assisted separation and enrichment of silicon isotopes such as 28Si, 29Si and 30Si on the basis of infrared multiple-photon dissociation of silicon halides represented by Si2F6, wherein the silicon halides are irradiated synchronously with multiple infrared pulsed laser beams at different wavelengths.
    Type: Application
    Filed: August 7, 2002
    Publication date: February 20, 2003
    Applicant: Japan Atomic Energy Research Institute
    Inventors: Atsushi Yokoyama, Hironori Ohba, Masashi Hashimoto, Takemasa Shibata, Shigeyoshi Arai, Takeshi Ishii, Akio Ohya
  • Automatic paper processing method and cut-sheet feed rotary press having automatic paper processing apparatus
    Patent number: 5386981
    Abstract: A method and apparatus for processing printed paper in a cut-sheet feed rotary press comprising receiving printed sheets from a printing press on a receiving device at a paper discharge, one sheet at a time, and stacking such received sheets, one on the other, withdrawing and transferring the stacked sheets to a further processing station, the apparatus comprising a printing press having a paper discharge, a paper-receiving device at the paper discharge for receiving the discharged paper, and a conveyer for conveying the paper-receiving device with the discharged paper thereon, from the paper discharge to a further processing station for the discharge of paper therefrom and for returning the paper-receiving device to the paper discharge after the printed paper thereon have been discharged therefrom at the further processing station.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: February 7, 1995
    Assignee: Dainippon Ink & Chemicals, Inc.
    Inventors: Seiji Sugimoto, Takemasa Shibata, Yutaka Hitani, Katsunori Kadokura
  • Device and method for leak location
    Patent number: 4583394
    Abstract: A method and apparatus are disclosed for detecting the presence of very fine leaks through the walls of an enclosure which include a sniffer nozzle (1) open to the atmosphere, a vessel (5) having molecular sieves (4) therein for adsorbing substantially all gaseous products which have entered the sniffer nozzle (1) with the exception of the probe gas which has been pressurized within the enclosure being tested, a pump system (8, 9) for creating vacuum conditions within the system, a mass spectrometer (12) for detecting the presence of the probe gas, and a capillary tube (2) interconnecting the nozzle sniffer (1) and the molecular sieve assembly whereby the probe gas draw rate, and sensitivity of the apparatus of the present invention, are significantly increased.
    Type: Grant
    Filed: August 7, 1984
    Date of Patent: April 22, 1986
    Assignee: Japan Atomic Energy Research Institute
    Inventors: Yoshio Murakami, Kenjiroh Obara, Tetsuya Abe, Yasuo Shimomura, Takemasa Shibata