Patents by Inventor Osamu Shiratsuchi

Osamu Shiratsuchi 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 device having antenna connection electrodes
    Patent number: 7312528
    Abstract: A semiconductor device includes first and second antenna connection electrodes placed on the periphery of a semiconductor chip, an on-chip antenna connection electrode placed in the inner area of the semiconductor chip compared to the first and second antenna connection electrodes, and an internal circuit formed in the semiconductor chip. The first and second antenna connection electrodes are connected to the internal circuit by internal lines. The on-chip antenna connection electrode is connected to the internal circuit and the second antenna connection electrode by internal lines. An on-chip antenna is connected to the second antenna connection electrode and the on-chip antenna connection electrode. An external antenna is connected to the first and second antenna connection electrodes.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: December 25, 2007
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Hiroto Watanabe, Osamu Nakayama, Osamu Shiratsuchi, Kazuhiko Daido
  • Semiconductor device
    Publication number: 20040159932
    Abstract: A semiconductor device includes first and second antenna connection electrodes placed on the periphery of a semiconductor chip, an on-chip antenna connection electrode placed in the inner area of the semiconductor chip compared to the first and second antenna connection electrodes, and an internal circuit formed in the semiconductor chip. The first and second antenna connection electrodes are connected to the internal circuit by internal lines. The on-chip antenna connection electrode is connected to the internal circuit and the second antenna connection electrode by internal lines. An on-chip antenna is connected to the second antenna connection electrode and the on-chip antenna connection electrode. An external antenna is connected to the first and second antenna connection electrodes.
    Type: Application
    Filed: February 17, 2004
    Publication date: August 19, 2004
    Inventors: Hiroto Watanabe, Osamu Nakayama, Osamu Shiratsuchi, Kazuhiko Daido