Patents by Inventor Mamiko Hayasaka

Mamiko Hayasaka 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).

  • Communication apparatus, a firewall control method, and a firewall control program
    Patent number: 8239931
    Abstract: A communication apparatus used in a plurality of networks is disclosed. The communication apparatus includes a firewall which allows communication with outside of the communication apparatus when disabled, and prohibits communication with outside of the communication apparatus when enabled. Then, the communication apparatus includes a firewall control unit which acquires a first MAC address of a first default gateway provided for a predetermined specific network and a second MAC address of a second default gateway provided for a network in which the communication apparatus is being connected, and controls the firewall according to a result of comparison of the first MAC address and the second MAC address.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: August 7, 2012
    Assignees: NEC Corporation, NEC Access Technica, Ltd.
    Inventors: Mamiko Hayasaka, Yoshinori Unno, Masanobu Kawashima
  • Communication apparatus, a firewall control method, and a firewall control program
    Publication number: 20090199291
    Abstract: A communication apparatus used in a plurality of networks is disclosed. The communication apparatus includes a firewall which allows communication with outside of the communication apparatus when disabled, and prohibits communication with outside of the communication apparatus when enabled. Then, the communication apparatus includes a firewall control unit which acquires a first MAC address of a first default gateway provided for a predetermined specific network and a second MAC address of a second default gateway provided for a network in which the communication apparatus is being connected, and controls the firewall according to a result of comparison of the first MAC address and the second MAC address.
    Type: Application
    Filed: January 29, 2009
    Publication date: August 6, 2009
    Inventors: Mamiko Hayasaka, Yoshinori Unno, Masanobu Kawashima