Patents by Inventor Akio Ohya

Akio Ohya 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
  • Method and apparatus for disposal of medical waste
    Patent number: 5362443
    Abstract: A method and an apparatus for simply disposing medical waste from a medical institution on site. The method comprises crushing medical waste in a closed container, exhausting air out of the container, sterilizing the air before releasing it into the atmosphere, and filling the container with a high-pressure steam having a temperature between 110.degree. C. and 150.degree. C. to sterilize the crushed medical waste. The apparatus is equipped with a pressure container having at least one air-tight seal, an internal waste crushing mechanism such as blades, an internal supply of steam, a valve for exhausting air from the container, and an air sterilizer for the exhausted air.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: November 8, 1994
    Assignees: Nippon Metal Industry Co., Ltd., Nissen Corporation
    Inventors: Mitsuyuki Tanaka, Masahiro Michino, Yasutaka Fujihira, Takashi Nakamura, Kisaburo Kohmura, Toshiro Asaoka, Akio Ohya