Patents by Inventor Seiji Miwa

Seiji Miwa 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: 20210357227
    Abstract: A micro-controller unit (MCU) for low power IoT and edge computing applications is disclosed. MCU includes instruction fetching module configured to fetch instruction from instruction memory, instruction decoding module configured to decode instruction to obtain decoded instruction, and execution module including first and second execution units and clock gating circuit. Second execution unit is configured to execute instruction types. Execution module is configured to receive instruction from instruction decoding module and execute decoded instruction via particular logic circuit from first logic circuits associated with first execution unit. First logic circuits except the particular logic circuit are turned-off during execution via clock gating circuit.
    Type: Application
    Filed: May 11, 2021
    Publication date: November 18, 2021
    Inventors: Md. Ashraful ISLAM, Seiji MIWA, Moazzem HOSSAIN
  • Patent number: 6016662
    Abstract: A main evaporator cools a driver's compartment of a vehicle while a cooling storage evaporator cools cooling storage packs that are used in cooling a sleeping compartment. Refrigerant is supplied to the main evaporator at the actuation of a first solenoid valve while refrigerant is supplied to the cooling storage evaporator at the actuation of a second solenoid valve. If a first switch is being actuated after the completion of the cooling storage operation of the cooling storage evaporator on the cooling storage packs and the temperature of the cooling storage packs is no more than a preset temperature, for example, -5.degree. C., FIR control is performed for alternately actuating the first solenoid valve and the second solenoid valve based on a predetermined time ratio (for example, 10 minutes 15 seconds).
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: January 25, 2000
    Assignee: Denso Corporation
    Inventors: Hisashi Tanaka, Yuichi Shirota, Hiroki Matsuo, Hikaru Sugi, Masami Konaka, Kazushi Yamamoto, Seiji Miwa, Tetsuji Nobuta
  • Patent number: 5644929
    Abstract: A heat regenerating type cooling apparatus includes a heat regenerating evaporator encased in a case and provided with a tube for a cooling medium and a heat regenerating pack arranged to be in close contact with the outer surface of the tube of the heat regenerating evaporator. The heat regenerating evaporator conducts a refrigeration cycle while a vehicle is running and cools the heat regenerating pack so as to cause a heat regenerating material within the pack to freeze When the vehicle is parked, a blower is operated to cause a current of air that is cooled by the heat regenerating pack due to heat exchange between the current of air and the frozen heat regenerating material in the heat regenerating pack. The cold air is blown out into an objective cooling area, such as a sleeping area of the vehicle, from a blowing port so that the objective cooling area is air-conditioned, and the upper half of the body of a sleeping person in the area is effectively exposed to air-conditioned air.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: July 8, 1997
    Assignee: Nippondenso Co., Ltd.
    Inventors: Hisashi Tanaka, Yuichi Shirota, Hikaru Sugi, Masami Konaka, Kazushi Yamamoto, Seiji Miwa, Manabu Miyata