Patents by Inventor Masanobu Kawashima

Masanobu Kawashima 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).

  • Fixing device
    Patent number: 11960224
    Abstract: A fixing device includes an endless belt, a rotatable pressing member, a pad member inside of the belt, and a sliding member held by the pad member and sliding on an inner circumferential surface of the belt in a nip. The rotatable pressing member nips and feeds a recording material in the nip in cooperation with the belt and fixes a toner image on the recording material by applying heat and pressure. The sliding member includes a base material layer on which a plurality of projections projecting toward the rotatable pressing member are formed on a side sliding with the belt and a sliding layer provided on an outer surface of the plurality of projections. A leading end of the plurality of projections is a plane and an average roughness (Ra) of the plane satisfies 0.13 ?m?Ra?1.67 ?m.
    Type: Grant
    Filed: February 16, 2023
    Date of Patent: April 16, 2024
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Akiyoshi Shinagawa, Yasuharu Toratani, Hiroshi Miyamoto, Daigo Matsuura, Hiroki Kawai, Ayano Ogata, Masanobu Tanaka, Asuna Fukamachi, Misa Kawashima
  • 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