Patents by Inventor Yohihiko Yasu

Yohihiko Yasu 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).

  • Semiconductor integrated circuit device
    Patent number: 7612601
    Abstract: A semiconductor integrated circuit device provided with a first circuit block BLK1, a second circuit block DRV1 and a conversion circuit MIO1 for connecting the first circuit block to the second circuit block. The first circuit block includes a first mode for applying a supply voltage and a second mode for shutting off the supply voltage. The conversion circuit is provided with a function for maintaining the potential of an input node of the second circuit block at an operation potential, thereby suppressing a penetrating current flow when the first circuit block is in the second mode. The conversion circuit (MIO1 to MIO4) are commonly used for connecting circuit blocks.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: November 3, 2009
    Assignee: Renesas Technology Corporation
    Inventors: Hiroyuki Mizuno, Yusuke Kanno, Kazumasa Yanagisawa, Yohihiko Yasu, Nobuhiro Oodaira
  • Semiconductor integrated circuit device
    Patent number: 7230477
    Abstract: A semiconductor integrated circuit device provided with a first circuit block BLK1, a second circuit block DRV1 and a conversion circuit MIO1 for connecting the first circuit block to the second circuit block. The first circuit block includes a first mode for applying a supply voltage and a second mode for shutting off the supply voltage. The conversion circuit is provided with a function for maintaining the potential of an input node of the second circuit block at an operation potential, thereby suppressing a penetrating current flow when the first circuit block is in the second mode. The conversion circuit (MIO1 to MIO4) are commonly used for connecting circuit blocks.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: June 12, 2007
    Assignee: Renesas Technology Corp.
    Inventors: Hiroyuki Mizuno, Yusuke Kanno, Kazumasa Yanagisawa, Yohihiko Yasu, Nobuhiro Oodaira