Patents by Inventor Rie Aruga

Rie Aruga 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).

  • Non-volatile semiconductor memory device having reduced power requirements
    Patent number: 6603700
    Abstract: A non-volatile semiconductor memory device includes a first memory bank, a second memory bank, a first power supply circuit, and a second power supply circuit. In write operation, the first power supply circuit supplies a boosted voltage to the first memory bank, and the second power supply circuit supplies a boosted voltage to the second memory bank. This enables sufficient current supply capability to be assured. On the other hand, in read operation, only the second power supply circuit supplies a boosted voltage to the first and second memory banks. This enables reduction in power consumption.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: August 5, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Rie Aruga
  • Non-volatile semiconductor memory device
    Publication number: 20020054531
    Abstract: A non-volatile semiconductor memory device includes a first memory bank, a second memory bank, a first power supply circuit, and a second power supply circuit. In write operation, the first power supply circuit supplies a boosted voltage to the first memory bank, and the second power supply circuit supplies a boosted voltage to the second memory bank. This enables sufficient current supply capability to be assured. On the other hand, in read operation, only the second power supply circuit supplies a boosted voltage to the first and second memory banks. This enables reduction in power consumption.
    Type: Application
    Filed: October 18, 2001
    Publication date: May 9, 2002
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventor: Rie Aruga