Patents by Inventor Koji Tsuchihashi

Koji Tsuchihashi 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).

  • Direct memory access controller
    Patent number: 5031097
    Abstract: A direct memory access controller has a data assembly function by means of a single temporary register. This single register used for a number of channels replaces temporary registers which have been necessary for the respective channels to carry out channel transition during data assembly. By controlling channel transition during data assembly, it is possible to carry out DMA transfers in which channel transition is made during data assembly, thereby preventing an increase in the chip size.
    Type: Grant
    Filed: August 25, 1989
    Date of Patent: July 9, 1991
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Naoichi Kitakami, Yuichi Nakao, Hiroyuki Kondo, Hideharu Toyomoto, Koji Tsuchihashi
  • Method of controlling fuel for a coke oven
    Patent number: 4980028
    Abstract: A method fo controlling fuel for a coke oven by a programmed heating method in which the fuel supply rate is changed at least once during the coal carbonization process in the coke oven, wherein the improvement comprises conducting the substantial reduction of the fuel supply rate from a large flow rate at the initial stage of the carbonization to a small flow rate inclusive of a zero rate when the coal center temperature, i.e. the temperature at the center of the coal packed in the carbonization chamber, is within a range of from 350.degree. to 700.degree. C.
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: December 25, 1990
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Yoshio Yoshino, Koji Tsuchihashi, Yoshihiro Omae, Kenzo Tsujikawa, Yukio Yamaguchi
  • Method of regulating fuel supply rate for heating a coke oven
    Patent number: 4655878
    Abstract: A method of regulating fuel for a coke oven by a programmed heating method in which a change of the fuel supply rate contains at least one substantial reduction during the coal carbonization process in the coke oven, wherein the improvement comprises setting up a standard curve for the ethylene concentration or the tar concentration based on the operating conditions of the coke oven and the conditions of feed coal, measuring the ethylene concentration or the tar concentration in the coke oven gas generated in the carbonization chamber, and controlling the fuel supply rate so as to minimize the difference between the measured value and the standard value.
    Type: Grant
    Filed: November 7, 1984
    Date of Patent: April 7, 1987
    Assignee: Mitsubishi Chemical Industries, Ltd.
    Inventors: Yoshio Yoshino, Koji Tsuchihashi, Yoshihiro Omae, Kenzo Tsujikawa, Takashi Takaoka, Yukio Yamaguchi
  • Process for producing carbon material for de-sulfurization from a binder with a blend of noncoking and coking coal
    Patent number: 4492771
    Abstract: Carbon material for de-sulfurization excellent in adsorptibility and mechanical strength can be produced from coal by controlling the physical properties of the raw material coal before its shaping to particular ranges, and subjecting the shaped coal to carbonization treatment.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: January 8, 1985
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Takashi Hasegawa, Koji Tsuchihashi, Hiroshi Yamashita