Patents by Inventor Yasuo Kojima

Yasuo Kojima 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: 4542088
    Abstract: There are disclosed a photopolymerizable composition comprising an organic solvent-soluble ethylenic unsaturated compound, an organic solvent-dispersible, water-insoluble granular dispersion and an organic solvent-soluble photopolymerization initiator having mutually dissolved or dispersed in a solvent composed mainly of an organic solvent, and an image-forming material using the composition.According to this invention, there are provided a photopolymerizable composition which is developable with water in a short period of time, has high film strength and water resistance of a photosensitive layer, high lipophilic properties and superior film-forming capability and can produce a highly sensitive resist as well as an image-forming material using said composition.
    Type: Grant
    Filed: March 10, 1983
    Date of Patent: September 17, 1985
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Yasuo Kojima, Nobumasa Sasa
  • Patent number: 4376371
    Abstract: A hydraulic circuit for a hydraulically driven vehicle comprising a pair of variable displacement hydraulic pumps, a pair of hydraulic motors each connected with the respective variable displacement pumps in a closed loop, and a straight run compensator valve connected between the respective closed loops for equalizing fluid pressure in both closed loops when the vehicle is set in a straight run thereby assuring a steady straight run of the vehicle irrespective of the difference in displacement of the respective variable displacement pumps.
    Type: Grant
    Filed: October 9, 1980
    Date of Patent: March 15, 1983
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Yasuo Kojima, Koichi Morita, Kenzo Hoashi, Taketo Aruga
  • Patent number: 4324098
    Abstract: A hydraulic circuit for a hydraulically driven vehicle comprising a pair of variable displacement pumps each driven by a common engine, a pair of variable displacement motors each connected with the respective variable displacement pumps in a closed loop circuit and driven thereby, a fixed displacement charge pump driven by the engine, and a pair of shuttle valves each connected in parallel with the respective closed loop circuits and has formed therein a neutral position and two offset positions wherein in the neutral positions of the shuttle valves both the closed loop circuits are connected with each other through the shuttle valves.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: April 13, 1982
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Taketo Aruga, Koichi Morita, Kenzo Hoashi, Yasuo Kojima