Patents by Inventor Norio Onitsuka

Norio Onitsuka 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).

  • Patent number: 10058626
    Abstract: A sterilization system comprises a reaction container configured to receive a sterilization object and sterilize the object; means for supplying peracetic acid as an sterilization agent into the reaction container, the peracid agent including at least peracetic acid; means for reducing a pressure in the reaction container; means for ventilating the reaction container; and means for generating plasma at a first predetermined portion for receiving the sterilization object in the reaction container and a second predetermined portion of a fluid passage from a neighborhood of the first predetermined portion to an exterior of the container. The pressure reducing means and the plasma generating means are controlled so that the plasma is maintained at the predetermined portions in a process during which the pressure in the reaction container is reduced.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: August 28, 2018
    Assignee: SARAYA CO., LTD.
    Inventors: Tomomasa Itarashiki, Norio Onitsuka
  • Patent number: 10058106
    Abstract: According to the present invention, a sterilant can be injected into a container without residual water on an object to be sterilized. The method includes decreasing a pressure in the container to a pressure higher than the triple point pressure at which water freezes. The method further includes comparing an actual time required for decreasing the pressure and a reference time, or comparing an actual rate of pressure increase and a reference rate to detect residual water on the object. If the residual water is detected, the pressure in the container is increased to the atmospheric pressure or the quasi-atmospheric pressure and the object is heated, and then the pressure is decreased to drain the residual water through the decompression boiling. The step of draining the residual water is repeatedly performed until no residual water is detected on the object and subsequently the sterilant is injected into the container.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: August 28, 2018
    Assignee: SARAYA CO., LTD.
    Inventors: Tomomasa Itarashiki, Norio Onitsuka
  • Publication number: 20150313250
    Abstract: According to the present invention, a sterilant can be injected into a container without residual water on an object to be sterilized. The method includes decreasing a pressure in the container to a pressure higher than the triple point pressure at which water freezes. The method further includes comparing an actual time required for decreasing the pressure and a reference time, or comparing an actual rate of pressure increase and a reference rate to detect residual water on the object. If the residual water is detected, the pressure in the container is increased to the atmospheric pressure or the quasi-atmospheric pressure and the object is heated, and then the pressure is decreased to drain the residual water through the decompression boiling. The step of draining the residual water is repeatedly performed until no residual water is detected on the object and subsequently the sterilant is injected into the container.
    Type: Application
    Filed: September 20, 2013
    Publication date: November 5, 2015
    Applicant: SARAYA CO., LTD.
    Inventors: Tomomasa ITARASHIKI, Norio ONITSUKA
  • Publication number: 20150209461
    Abstract: A sterilization system comprises a reaction container configured to receive a sterilization object and sterilize the object; means for supplying peracetic acid as an sterilization agent into the reaction container, the peracid agent including at least peracetic acid; means for reducing a pressure in the reaction container; means for ventilating the reaction container; and means for generating plasma at a first predetermined portion for receiving the sterilization object in the reaction container and a second predetermined portion of a fluid passage from a neighborhood of the first predetermined portion to an exterior of the container. The pressure reducing means and the plasma generating means are controlled so that the plasma is maintained at the predetermined portions in a process during which the pressure in the reaction container is reduced.
    Type: Application
    Filed: May 22, 2013
    Publication date: July 30, 2015
    Applicant: SARAYA CO., LTD.
    Inventors: Tomomasa Itarashiki, Norio Onitsuka