Patents by Inventor Koji Tsuchimoto

Koji Tsuchimoto 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).

  • Device for dynamically measuring bubble content of flowing liquid
    Patent number: 5295083
    Abstract: A device for dynamically measuring the bubble content of a flowing liquid is arranged in a conveyance passage for a flowing liquid or provided in a simple bypass for the conveyance passage of the liquid so that the bubble content of the flowing liquid and the bubble quantity of dissolved gas in the flowing liquid can be dynamically measured due to a change in the pressure of the liquid in the passage or the bypass without extracting any of the liquid therefrom.
    Type: Grant
    Filed: November 4, 1991
    Date of Patent: March 15, 1994
    Assignee: Mitsubishi Oil Co., Ltd.
    Inventors: Hisashi Yano, Mitulu Fujioka, Koji Tsuchimoto, Junsuke Yabumoto
  • Lubricating oil for traction drives
    Patent number: 5043497
    Abstract: A lubricating oil is disclosed, which mainly is composed of a naphthenic hydrocarbon having 19 carbon atoms comprising two cyclohexane rings which have methyl-substitution at the 1, 2 and 4 positions thereof, the two cyclohexane rings being linked by a methylene group.
    Type: Grant
    Filed: September 26, 1989
    Date of Patent: August 27, 1991
    Assignee: Mitsubishi Oil Co., Ltd.
    Inventors: Masayoshi Muraki, Hajime Yoshida, Koji Tsuchimoto
  • Process for converting nitrogen dioxide into nitrogen monoxide
    Patent number: 4073866
    Abstract: A process for converting nitrogen dioxide into nitrogen monoxide which comprises bringing a gas containing nitrogen dioxide into contact at a temperature ranging from 50.degree. C. to 400.degree. C. with a carbide of a metal selected from the group consisting of chromium, molybdenum, tungsten, vanadium, titanium, tantalum, silicon and boron or a composite carbide of such metals, thereby reducing nitrogen dioxide contained in the gas to nitrogen monoxide.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: February 14, 1978
    Assignee: Agency of Industrial Science and Technology of Japan
    Inventors: Naoomi Yamaki, Natsuko Futsuhara, Kazue Masuda, Koji Tsuchimoto
  • Process for producing conductive graphite fiber
    Patent number: H907
    Abstract: A process for producing a graphite fiber is disclosed, which is characterized by using, as a starting material, an optically anisotropic pitch prepared from a compound having a specific chemical structure as represented by formula (I) shown in the specification. The resulting graphite fiber shows a highly developed graphite structure and has excellent electrical conductivity.
    Type: Grant
    Filed: June 16, 1988
    Date of Patent: April 2, 1991
    Assignee: Mitsubishi Oil Co., Ltd.
    Inventors: Kazuhito Tate, Koji Tsuchimoto, Kazuhiro Yanagida