Patents by Inventor Hirohumi Oosawa

Hirohumi Oosawa 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).

  • Backup power source device and automobile equipped with same
    Patent number: 9013056
    Abstract: A backup power source device includes the following elements: a capacitor; a charging circuit provided in the charging path of the capacitor and performing step-down operation; a boost circuit provided in the output path of the capacitor; and a door-lock-releasing output terminal connected to the boost circuit.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: April 21, 2015
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Youichi Kageyama, Keiji Azuma, Hirohumi Oosawa, Masafumi Nakamura
  • BACKUP POWER SOURCE DEVICE AND AUTOMOBILE EQUIPPED WITH SAME
    Publication number: 20150001926
    Abstract: A backup power source device includes the following elements: a capacitor; a charging circuit provided in the charging path of the capacitor and performing step-down operation; a boost circuit provided in the output path of the capacitor; and a door-lock-releasing output terminal connected to the boost circuit.
    Type: Application
    Filed: February 8, 2013
    Publication date: January 1, 2015
    Inventors: Youichi Kageyama, Keiji Azuma, Hirohumi Oosawa, Masafumi Nakamura