Patents by Inventor Toshiyuki Ishizuka

Toshiyuki Ishizuka 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).

  • Music distribution-compatible portable terminal and portable terminal
    Publication number: 20040047304
    Abstract: A first problem of the present invention is to improve an user-friendly operability when a portable type wireless terminal apparatus is used as a music-delivery-available portable type terminal apparatus. Also, a second problem of the present invention is to provide a portable terminal apparatus capable of displaying thereon image data related to music data.
    Type: Application
    Filed: November 13, 2002
    Publication date: March 11, 2004
    Inventors: Nobuyuki Takahashi, Toshiyuki Ishizuka
  • Pay information distribution system
    Publication number: 20020154558
    Abstract: The progress status of the download later than the actual progress status is displayed on a display unit of a terminal in a period of downloading encrypted music data MD1′.[92% completed] is displayed in a display screen Z2 even though the download of the encrypted music data MD1′ is completed in time t3. And, the billing request Creq is transmitted to a distribution and billing server in time t5, and a display screen Z3, showing the download is completed, is displayed on the display unit after the terminal receives the billing request C req.
    Type: Application
    Filed: May 2, 2002
    Publication date: October 24, 2002
    Inventors: Yasuhiro Urata, Hidekazu Li, Kuniaki Naoi, Youji Kanada, Toshihiro Sugano, Kenichi Suimon, Toshiyuki Ishizuka, Nobuyuki Takahashi