Patents by Inventor Kouichi Ishibashi

Kouichi Ishibashi 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).

  • Patent number: 8064445
    Abstract: When an apparatus located at an edge of a network transmits a report message in a multicast procedure transmitted from a mobile terminal to a gateway switch, the apparatus snoops the report message and transmits an entry update request frame for causing an entry forming a transfer route for multicast to be learned in a direction of the gateway switch. The gateway switch transfers the received report message to a port to which an IP multicast router is connected after the transfer router for multicast is formed.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: November 22, 2011
    Assignees: Mitsubishi Electric Corporation, National Institute of Information and Communications Technology
    Inventors: Akira Okubo, Kouichi Ishibashi, Masahiro Kuroda
  • Publication number: 20080192668
    Abstract: When an apparatus located at an edge of a network transmits a report message in a multicast procedure transmitted from a mobile terminal to a gateway switch, the apparatus snoops the report message and transmits an entry update request frame for causing an entry forming a transfer route for multicast to be learned in a direction of the gateway switch. The gateway switch transfers the received report message to a port to which an IP multicast router is connected after the transfer router for multicast is formed.
    Type: Application
    Filed: March 14, 2005
    Publication date: August 14, 2008
    Inventors: Akira Okubo, Kouichi Ishibashi, Masahiro Kuroda
  • Patent number: 6933454
    Abstract: Herein disclosed are a switching apparatus and a vehicle-mounted electronic apparatus having the switching apparatus assembled therein.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: August 23, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kouichi Ishibashi, Shinichi Shinohara
  • Publication number: 20050061645
    Abstract: Herein disclosed are a switching apparatus and a vehicle-mounted electronic apparatus having the switching apparatus assembled therein.
    Type: Application
    Filed: September 19, 2003
    Publication date: March 24, 2005
    Inventors: Kouichi Ishibashi, Shinichi Shinohara
  • Patent number: 6524465
    Abstract: A method of electrochemical treatment of prestressed concrete which comprises supplying a direct current between a steel embedded in the prestressed concrete as a cathode and an anode on the surface or inside of the concrete at a voltage higher than the hydrogen evolution potential, wherein an effective tensile force acting on the PC steel tendon embedded in the concrete is not greater than 80 % of the tensile strength of the PC steel tendon, and a method of electrochemical treatment of prestressed concrete which comprises supplying a direct current between a steel tendon embedded in the prestressed concrete as a cathode and an anode on the surface or inside of the concrete at a voltage higher than the hydrogen evolution potential, wherein the voltage is adjusted to less than the hydrogen evolution potential at least once during electrochemical treatment.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: February 25, 2003
    Assignee: Denki Kagaku Kogyo Kabushiki Kaisha
    Inventors: Masanobu Ashida, Kouichi Ishibashi
  • Patent number: 5534934
    Abstract: To provide an image which is matched with an aspect ratio of a screen of a display unit by compressing and enlarging the whole of the image to a desired size. A video signal is sequentially written into a field memory in response to a write clock from an input terminal. A clock generating circuit supplies the field memory with a read clock having a frequency which is about 4/3 times as high as that of the write clock. A vertical enlargement control circuit reads a video signal from the field memory with a line period corresponding to a magnification factor and inhibits writing to a one-line memory with the same period to provide a line delayed output for an output signal from the field memory. A vertical interpolating circuit generates a scanning line signal by an interpolation operation in accordance with a control signal from the vertical enlargement control circuit.
    Type: Grant
    Filed: June 16, 1994
    Date of Patent: July 9, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Katsumata, Shigeru Hirahata, Toshinori Murata, Haruki Takata, Shinobu Torikoshi, Takanori Eda, Kouichi Ishibashi
  • Patent number: 5343238
    Abstract: A wide-screen television receiver capable of converting a TV signal of a non-aspect ratio into a signal of a wide aspect ratio which can be displayed on a wide screen of the wide aspect ratio and previously visually informing the user of what part of the image of the non-aspect ratio TV signal is converted in its aspect ratio and displayed on the wide screen. The receiver includes the interpolation scan speed conversion circuit, the mode setting circuit, the aspect ratio converting circuit, the wide cursor adding circuit and the wide display. The interpolation scan speed conversion circuit makes a series of processes such as Y/C separation and scan line interpolation for the input video signal supplied via the input terminal. The aspect ratio converting circuit compresses the video signal from the interpolation scan speed conversion circuit in the horizontal direction by use of a memory. The magnification processing circuit is provided after the aspect ratio converting circuit.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: August 30, 1994
    Assignees: Hitachi, Ltd., Hitachi Video Information System, Inc.
    Inventors: Haruki Takata, Kenji Katsumata, Shigeru Hirahata, Mituo Konno, Kouichi Ishibashi, Sunao Suzuki
  • Patent number: 5276515
    Abstract: A video signal processing circuit is provided to display an image of a standard television signal on a display unit with a 6:9 aspect ratio by enlarging an image of a video signal in the horizontal and vertical directions by a magnification factor which depends on the feature of the standard television signal. The processing circuit includes a first memory circuit which reads out the stored video signal in response to a read clock different from the write clock and generated by a stable frequency source so that the image of the video signal is expanded in the vertical direction, a second memory circuit which implements time-base compression for the output of the first memory circuit and thereafter expands the signal, a spatial filter which implements filtering for the output of the second memory circuit, an enlargement control circuit which control the above-mentioned circuits, and a synchronizing processing circuit.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: January 4, 1994
    Assignees: Hitachi, Ltd., Hitachi Video & Information System, Inc.
    Inventors: Kenji Katsumata, Shigeru Hirahata, Haruki Takata, Mituo Konno, Kouichi Ishibashi, Kazuhiro Kaizaki, Takaaki Matono, Atushi Haratani