Patents by Inventor Hitoshi Ushiroda

Hitoshi Ushiroda 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).

  • Wireless telephone battery charging while performing data communications
    Patent number: 6212403
    Abstract: A portable wireless communication device performing data communications through a network includes a secondary battery and an interface portion detachably connected to an external data terminal, for transmitting data to and receiving data from the external data terminal and for receiving an electric power from the external data terminal. The portable wireless communication device is alternately operated with at least one of an electric power from the secondary battery and the electric power input from the external data terminal through the interface portion.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: April 3, 2001
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hitoshi Ushiroda