Patents by Inventor Michio Omata

Michio Omata 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: 9379401
    Abstract: A fuel cell system has a fuel cell for generating electricity by reacting a fuel gas with an oxidant gas and an exhaust flow passage for exhausting the fuel exhaust gas exhausted from a fuel electrode 16 of the fuel cell to the outside. The fuel cell system is equipped with a movable filter device disposed in the exhaust flow passage, so that by activating the movable filter device, water and foreign particles adhering to the filter are quickly scattered by rotational centrifugal force and vibration, thereby preventing the exhaust flow passage from being blocked by the clogging by water freeze and foreign particles and also reducing startup time.
    Type: Grant
    Filed: February 2, 2011
    Date of Patent: June 28, 2016
    Assignees: Nissan Motor Co., Ltd., SAGINOMIYA SEISAKUSHO, INC.
    Inventors: Shinichirou Takemoto, Kazuhiko Osawa, Ichiro Okawara, Shinichi Kitano, Michio Omata
  • Patent number: 8876929
    Abstract: A filter device disposed in a moist fluid passage of the fuel cell system includes a fluid introducing path which introduces a fluid that flows in the moist fluid passage, a filter to permeate the fluid introduced from the fluid introducing path and remove foreign matter in the fluid, a fluid discharge path which discharges a fluid that passed the filter, and a rotating driving mechanism, connected with the filter, that rotates the filter so that substances that adheres to the filter are removed by the centrifugal force. In the filter device, water does not adhere to and does not remain in the filter. When leaving the system under the low temperature after the system stops, blockage by freezing the filter can surely be prevented. The complex control and the heat source such as a heater for defrost is unnecessary. Thus, a cheap and compact filter device can be provided.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: November 4, 2014
    Assignees: Kabushiki Kaisha Saginomiya Seisakusho, Nissan Motor Co., Ltd
    Inventors: Kazuhiko Osawa, Ichiro Okawara, Shinichi Kitano, Michio Omata, Shinichirou Takemoto
  • Publication number: 20140069066
    Abstract: A filter device disposed in a moist fluid passage of the fuel cell system includes a fluid introducing path which introduces a fluid that flows in the moist fluid passage, a filter to permeate the fluid introduced from the fluid introducing path and remove foreign matter in the fluid, a fluid discharge path which discharges a fluid that passed the filter, and a rotating driving mechanism, connected with the filter, that rotates the filter so that substances that adheres to the filter are removed by the centrifugal force. In the filter device, water does not adhere to and does not remain in the filter. When leaving the system under the low temperature after the system stops, blockage by freezing the filter can surely be prevented. The complex control and the heat source such as a heater for defrost is unnecessary. Thus, a cheap and compact filter device can be provided.
    Type: Application
    Filed: December 22, 2010
    Publication date: March 13, 2014
    Applicants: Kabushiki Kaisha Saginomiya Seisakusho, Nissan Motor Co., Ltd.
    Inventors: Kazuhiko Osawa, Ichiro Okawara, Shinichi Kitano, Michio Omata, Shinichirou Takemoto
  • Publication number: 20130004868
    Abstract: A fuel cell system has a fuel cell for generating electricity by reacting a fuel gas with an oxidant gas and an exhaust flow passage for exhausting the fuel exhaust gas exhausted from a fuel electrode 16 of the fuel cell to the outside. The fuel cell system is equipped with a movable filter device disposed in the exhaust flow passage, so that by activating the movable filter device, water and foreign particles adhering to the filter are quickly scattered by rotational centrifugal force and vibration, thereby preventing the exhaust flow passage from being blocked by the clogging by water freeze and foreign particles and also reducing startup time.
    Type: Application
    Filed: February 2, 2011
    Publication date: January 3, 2013
    Applicants: SAGINOMIYA SEISAKUSHO, INC., NISSAN MOTOR CO., LTD.
    Inventors: Shinichirou Takemoto, Kazuhiko Osawa, Ichiro Okawara, Shinichi Kitano, Michio Omata
  • Publication number: 20120285131
    Abstract: A filter device disposed in a moist fluid passage of the fuel cell system includes a fluid introducing path which introduces a fluid that flows in the moist fluid passage, a filter to permeate the fluid introduced from the fluid introducing path and remove foreign matter in the fluid, a fluid discharge path which discharges a fluid that passed the filter, and a rotating driving mechanism, connected with the filter, that rotates the filter so that substances that adheres to the filter are removed by the centrifugal force. In the filter device, water does not adhere to and does not remain in the filter. When leaving the system under the low temperature after the system stops, blockage by freezing the filter can surely be prevented. The complex control and the heat source such as a heater for defrost is unnecessary. Thus, a cheap and compact filter device can be provided.
    Type: Application
    Filed: December 22, 2010
    Publication date: November 15, 2012
    Applicants: NISSAN MOTOR CO., LTD., KABUSHIKI KAISHA SAGINOMIYA SEISAKUSHO
    Inventors: Kazuhiko Osawa, Ichiro Okawara, Shinichi Kitano, Michio Omata, Shinichirou Takemoto