Patents by Inventor Kengo Murayama

Kengo Murayama 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: 10508849
    Abstract: An air conditioner of the present invention includes: a compressor; an outdoor fan; a temperature sensor configured to detect an outside temperature; a memory configured to store the outside temperature detected by the temperature sensor; and a controller configured to conduct holding control of not updating the outside temperature stored in the memory, when the compressor is being driven and the outdoor fan is stopped or is repeatedly started and stopped after the outside temperature detected by the temperature sensor is stored in the memory while the outdoor fan is being driven.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: December 17, 2019
    Assignee: Daikin Industries, Ltd.
    Inventors: Takeshi Yamakawa, Kengo Murayama, Seiji Oka
  • Publication number: 20180245837
    Abstract: An air conditioner of the present invention includes: a compressor; an outdoor fan; a temperature sensor configured to detect an outside temperature; a memory configured to store the outside temperature detected by the temperature sensor; and a controller configured to conduct holding control of not updating the outside temperature stored in the memory, when the compressor is being driven and the outdoor fan is stopped or is repeatedly started and stopped after the outside temperature detected by the temperature sensor is stored in the memory while the outdoor fan is being driven.
    Type: Application
    Filed: February 27, 2018
    Publication date: August 30, 2018
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takeshi YAMAKAWA, Kengo MURAYAMA, Seiji OKA
  • Patent number: 7739880
    Abstract: There is provided a compressor and an air conditioner capable of preventing a piston from being locked to a cylinder by iced matters. A compressor operation control section 18 of a control unit 20 stops the piston 2 in a high-temperature region HR of comparatively high temperatures where frost or ice of an inner circumferential surface of the cylinder 1 is less easily generated. As a result, generation of iced matters between the high-temperature region HR of the inner circumferential surface of the cylinder 1 and the piston 2 is prevented, so that a lock of the piston 2 due to iced matters can be prevented.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: June 22, 2010
    Assignee: Daikin Industries, Ltd.
    Inventors: Fukukou Okamoto, Kazuhiro Nawatedani, Kengo Murayama, Takayuki Matsumoto, Tetsuya Itagaki
  • Publication number: 20080066478
    Abstract: There is provided a compressor and an air conditioner capable of preventing a piston from being locked to a cylinder by iced matters. A compressor operation control section 18 of a control unit 20 stops the piston 2 in a high-temperature region HR of comparatively high temperatures where frost or ice of an inner circumferential surface of the cylinder 1 is less easily generated. As a result, generation of iced matters between the high-temperature region HR of the inner circumferential surface of the cylinder 1 and the piston 2 is prevented, so that a lock of the piston 2 due to iced matters can be prevented.
    Type: Application
    Filed: September 18, 2006
    Publication date: March 20, 2008
    Applicant: Daikin Industries, Ltd.
    Inventors: Fukukou Okamoto, Kazuhiro Nawatedani, Kengo Murayama, Takayuki Matsumoto, Tetsuya Itagaki