Patents by Inventor Yuzo Kohda

Yuzo Kohda 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: 5382531
    Abstract: An apparatus continuously manufactures a semiconductor device. A plurality of glow discharge regions are connected by gas gates. An enough long belt-shaped substrate having a desired width is arranged along a path in which the substrate sequentially penetrates the glow discharge regions. The belt-shaped substrate is continuously conveyed in a longitudinal direction while depositing a semiconductor layer of a conductivity type which is needed in each of the glow discharge regions, thereby continuously manufacturing the device having a semiconductor junction. A plurality of rotatable rollers are arranged in a slit-shaped separating passage of the gas gates so as to support the back surface of the belt-shaped substrate while rotating the rollers.
    Type: Grant
    Filed: July 27, 1993
    Date of Patent: January 17, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasushi Fujioka, Takashi Kurokawa, Masahiro Kanai, Masafumi Sano, Takehito Yoshino, Yuzo Kohda
  • Patent number: 5284525
    Abstract: A solar cell comprising a conductive substrate and semiconductor layers laminated on the conductive substrate, said laminate comprising a p-type layer composed of a non-single crystal Si material, an i-type layer serving as an active layer and an n-type layer, wherein a diamond layer having an uneven surface and containing a valence electron controlling agent is interposed between the conductive substrate and the semiconductor layers.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: February 8, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keishi Saito, Tatsuyuki Aoike, Yasushi Fujioka, Mitsuyuki Niwa, Toshimitsu Kariya, Yuzo Kohda
  • Patent number: 5266116
    Abstract: An apparatus continuously manufactures a semiconductor device. A plurality of glow discharge regions are connected by gas gates. A sufficiently long belt-shaped substrate having a desired width is arranged along a path in which the substrate sequentially penetrates the glow discharge regions. The belt-shaped substrate is continuously conveyed in a longitudinal direction while depositing a semi-conductor layer of a conductivity type in each of the glow discharge regions, thereby continuously manufacturing the device having a semiconductor junction. A plurality of rotatable rollers are arranged in a slit-shaped separating passage of the gas gates so as to support the back surface of the belt-shaped substrate while rotating the rollers.
    Type: Grant
    Filed: March 27, 1992
    Date of Patent: November 30, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yasushi Fujioka, Takashi Kurokawa, Masahiro Kanai, Masafumi Sano, Takehito Yoshino, Yuzo Kohda