Patents by Inventor Noriko Mizukoshi

Noriko Mizukoshi 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).

  • Memory trouble relief circuit
    Patent number: 6967879
    Abstract: When a redundancy circuit is provided to relieve the inferiority of a semiconductor storage device, and then, the semiconductor storage device has no defect, power is inconveniently supplied even to the unused redundancy circuit to generate unnecessary leakage current. A self-diagnosis circuit for a semiconductor storage device is provided to perform the self-diagnosis of the semiconductor storage device upon turning on a power source. Power (2) is supplied to a redundancy circuit part and power (1) is supplied to a circuit part except the redundancy circuit part. When the semiconductor storage device has no defect as a result of the self-diagnosis, a control for turning off the power (2) of the redundancy circuit part is performed.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: November 22, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Noriko Mizukoshi
  • Memory trouble relief circuit
    Publication number: 20040151022
    Abstract: When a redundancy circuit is provided to relieve the inferiority of a semiconductor storage device, and then, the semiconductor storage device has no defect, power is inconveniently supplied even to the unused redundancy circuit to generate unnecessary leakage current.
    Type: Application
    Filed: November 20, 2003
    Publication date: August 5, 2004
    Inventor: Noriko Mizukoshi