Patents by Inventor Katzutoshi Nishizawa

Katzutoshi Nishizawa 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).

  • Magnetic refrigeration system with single direction coolant devices and vehicle air conditioning device applications
    Patent number: 9995512
    Abstract: A magnetic refrigeration system constructed in such a way that a refrigerant transfer part transfers refrigerant from a first refrigerant discharge part of one refrigerant port to a first refrigerant circulation circuit after a magnetic field is applied to a magnetic working material by a magnetic field applying and removing part and that the refrigerant transfer part transfers refrigerant from a second refrigerant discharge part of other refrigerant port to a second refrigerant circulation circuit after the magnetic field is removed from the magnetic working material by the magnetic field applying and removing part.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: June 12, 2018
    Assignee: DENSO CORPORATION
    Inventors: Tsuyoshi Morimoto, Naoki Watanabe, Shinichi Yatsuzuka, Katzutoshi Nishizawa
  • Magnetic Refrigeration System With Single Direction Coolant Devices And Vehicle Air Conditioning Device Applications
    Publication number: 20160370037
    Abstract: A magnetic refrigeration system constructed in such a way that a refrigerant transfer part transfers refrigerant from a first refrigerant discharge part of one refrigerant port to a first refrigerant circulation circuit after a magnetic field is applied to a magnetic working material by a magnetic field applying and removing part and that the refrigerant transfer part transfers refrigerant from a second refrigerant discharge part of other refrigerant port to a second refrigerant circulation circuit after the magnetic field is removed from the magnetic working material by the magnetic field applying and removing part.
    Type: Application
    Filed: September 1, 2016
    Publication date: December 22, 2016
    Inventors: Tsuyoshi MORIMOTO, Naoki WATANABE, Shinichi YATSUZUKA, Katzutoshi NISHIZAWA
  • MAGNETIC REFRIGERATION SYSTEM AND VEHICLE AIR CONDITIONING DEVICE
    Publication number: 20130298571
    Abstract: A magnetic refrigeration system constructed in such a way that a refrigerant transfer part transfers refrigerant from a first refrigerant discharge part of one refrigerant port to a first refrigerant circulation circuit after a magnetic field is applied to a magnetic working material by a magnetic field applying and removing part and that the refrigerant transfer part transfers refrigerant from a second refrigerant discharge part of other refrigerant port to a second refrigerant circulation circuit after the magnetic field is removed from the magnetic working material by the magnetic field applying and removing part.
    Type: Application
    Filed: January 24, 2012
    Publication date: November 14, 2013
    Applicant: DENSO CORPORATION
    Inventors: Tsuyoshi Morimoto, Naoki Watanabe, Shinichi Yatsuzuka, Katzutoshi Nishizawa