Patents by Inventor Ryoko Fujiwara

Ryoko Fujiwara 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).

  • Publication number: 20110167851
    Abstract: A refrigerant cycle device having an ejector includes a first evaporator for evaporating refrigerant flowing out of the ejector, a first passage portion for guiding refrigerant to a refrigerant suction port of the ejector, a throttle unit located in the first passage portion, a second evaporator located in the first passage portion downstream of the throttle unit, a bypass passage portion for guiding hot gas refrigerant from a compressor into the second evaporator, a bypass opening and closing unit provided in the bypass passage portion. Furthermore, a second passage portion is branched from the bypass passage portion downstream of the bypass opening and closing unit, and a flow control unit is provided in the second passage portion to prevent a flow of refrigerant from the first evaporator to the second evaporator through the second passage portion. Therefore, defrosting of both the first and second evaporators can be suitably performed.
    Type: Application
    Filed: March 23, 2011
    Publication date: July 14, 2011
    Applicant: DENSO CORPORATION
    Inventors: Haruyuki Nishijima, Etsuhisa Yamada, Hideya Matsui, Hirotsugu Takeuchi, Gentarou Oomura, Ryoko Fujiwara
  • Publication number: 20080041079
    Abstract: A refrigerant cycle device having an ejector includes a first evaporator for evaporating refrigerant flowing out of the ejector, a first passage portion for guiding refrigerant to a refrigerant suction port of the ejector, a throttle unit located in the first passage portion, a second evaporator located in the first passage portion downstream of the throttle unit, a bypass passage portion for guiding hot gas refrigerant from a compressor into the second evaporator, a bypass opening and closing unit provided in the bypass passage portion. Furthermore, a second passage portion is branched from the bypass passage portion downstream of the bypass opening and closing unit, and a flow control unit is provided in the second passage portion to prevent a flow of refrigerant from the first evaporator to the second evaporator through the second passage portion. Therefore, defrosting of both the first and second evaporators can be suitably performed.
    Type: Application
    Filed: June 21, 2007
    Publication date: February 21, 2008
    Applicant: DENSO Corporation
    Inventors: Haruyuki Nishijima, Etsuhisa Yamada, Hideya Matsui, Hirotsugu Takeuchi, Gentarou Oomura, Ryoko Fujiwara
  • Publication number: 20080000263
    Abstract: A distributor able to evenly supply influent two-phase refrigerant flowing in by various flow states to different pipes with an extremely small pressure loss, that is, a distributor of a gas-liquid two-phase fluid distributing a gas-liquid two-phase fluid flowing in from an inlet pipe into a plurality of distribution pipes, provided with a cylindrical vessel with a cylindrical upper part, an inlet pipe connected in a tangential direction with respect to a circular cross section of the upper portion of the cylindrical vessel, and distribution pipes connected to a lower portion of the cylindrical vessel.
    Type: Application
    Filed: June 26, 2007
    Publication date: January 3, 2008
    Applicant: DENSO Corporation
    Inventors: Gentarou Oomura, Haruyuki Nishijima, Etsuhisa Yamada, Hirotsugu Takeuchi, Hideya Matsui, Ryoko Fujiwara