Patents by Inventor Hajime Kobayashi

Hajime Kobayashi 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).

  • Heat-developable photosensitive member for forming electrostatic printing masters
    Patent number: 4273844
    Abstract: A heat-developable photosensitive member for forming an electric printing master comprises a support, an organic silver salt layer containing an organic silver salt, a halide and a toning agent dispersed in a binder, and a surface protecting layer or a particular surface, and a reducing agent is contained in at least one layer of the organic silver salt layer and a layer adjacent to the organic layer.
    Type: Grant
    Filed: August 9, 1978
    Date of Patent: June 16, 1981
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hajime Kobayashi, Yasuhiro Yano, Ichiro Endo
  • Heat-developable photosensitive material
    Patent number: 4259424
    Abstract: An improved heat-developable photosensitive material is disclosed which comprises an infrared rays-absorbing layer provided in contact with or adjacent to a layer comprising a reducible organic silver salt.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: March 31, 1981
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ichiro Endo, Hajime Kobayashi, Toshiyuki Komatsu, Shigeru Ohno
  • Liquid recording medium
    Patent number: 4243994
    Abstract: A liquid recording medium for recording by ejecting liquid droplets comprises (a) recording agent which is a component to form a recorded image; and (b) carrier liquid to dissolve or disperse said recording agent, a difference .DELTA.T between a decomposition temperature of a substance having the lowest decomposition temperature among the substances constituting the recording agent and a boiling point of said liquid recording medium, exclusive of said recording agent, being at least 30.degree. C.
    Type: Grant
    Filed: March 2, 1979
    Date of Patent: January 6, 1981
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hajime Kobayashi, Noboru Koumura, Shigeru Ohno
  • Image forming method
    Patent number: 4237213
    Abstract: An image forming method comprises adding a development accelerator for accelerating the developing function at the time of the heat-development to a heat-development type photosensitive raw material containing therein at least an organic silver salt, a halide, and a binder, at the time when the image formation is to be carried out by the process steps of exposure and heat-development.
    Type: Grant
    Filed: October 3, 1978
    Date of Patent: December 2, 1980
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ichiro Endo, Hajime Kobayashi, Yasuhiro Yano, Takao Muramatsu
  • Electrostatic printing method
    Patent number: 4106409
    Abstract: In an electrostatic printing process utilizing a printing master formed by exposing and heat developing a photosensitive element formed from a reducible organic silver salt, image forming capability is enhanced by a preheating of the image-forming member prior to said exposure and heat developing of the exposed image.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: August 15, 1978
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hajime Kobayashi, Yasuhiro Yano, Ichiro Endo
  • Light and heat formation of conductive image printing plate
    Patent number: 4069759
    Abstract: A master for electrostatic printing comprises a layer composed of conductive silver image portion containing metallic silver grains and a non-silver image portion having an electric resistance sufficient to retain electrostatic charge. The image formed by image light exposure and heating a layer including an organic silver salt compound, a reducing agent and an insulating medium.
    Type: Grant
    Filed: July 25, 1975
    Date of Patent: January 24, 1978
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ichiro Endo, Hajime Kobayashi, Kikuo Kinjo, deceased
  • Process for electrostatic printing and apparatus therefor
    Patent number: 4057016
    Abstract: Electrostatic printing is conducted by using an electrostatic printing master composed of an insulating medium having an electric resistance sufficient to retain an electrostatic charge and conductive silver images carried in the insulating medium and heating the electrostatic printing master.
    Type: Grant
    Filed: May 12, 1976
    Date of Patent: November 8, 1977
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ichiro Endo, Hajime Kobayashi, Nobuhiro Takekawa
  • Heat developable photosensitive material containing compounds of sulfur
    Patent number: 4036650
    Abstract: A heat developable photosensitive material capable of forming fogless and table images of high contrast which comprises at least an organic silver salt, a halide and at least one member selected from sulfur and sulfur compounds having a moiety of ##STR1##
    Type: Grant
    Filed: August 26, 1975
    Date of Patent: July 19, 1977
    Assignee: Canon Kabushiki Kaisha
    Inventors: Noriko Hasegawa, Hajime Kobayashi, Ichiro Endo, Kikuo Kinjo, deceased