Patents by Inventor Keiji SUGIMORI

Keiji SUGIMORI 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: 10605506
    Abstract: A heat pump includes a control device configured to control conduction and shutting-off of electric power to a first compressor heater, and to control whether or not an alarm unit notifies an alarm. The control device causes the alarm unit to notify the alarm when the control device determines that duration of electric conduction to the first compressor heater is a predetermined period or longer. With this, it is possible to provide a heat pump that can control electric conduction to the heater to enable saving of electricity, and that can detect a problem in the controlling of the electric conduction to the heater.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: March 31, 2020
    Assignee: YANMAR CO., LTD.
    Inventors: Hirotoshi Kihara, Keiji Sugimori, Sadanori Yasuda, Hirotaka Nakamura, Makoto Asai
  • Publication number: 20180080694
    Abstract: A heat pump includes a control device configured to control conduction and shutting-off of electric power to a first compressor heater, and to control whether or not an alarm unit notifies an alarm. The control device causes the alarm unit to notify the alarm when the control device determines that duration of electric conduction to the first compressor heater is a predetermined period or longer. With this, it is possible to provide a heat pump that can control electric conduction to the heater to enable saving of electricity, and that can detect a problem in the controlling of the electric conduction to the heater.
    Type: Application
    Filed: March 11, 2016
    Publication date: March 22, 2018
    Applicant: Yanmar Co., Ltd.
    Inventors: Hirotoshi KIHARA, Keiji SUGIMORI, Sadanori YASUDA, Hirotaka NAKAMURA, Makoto ASAI