Patents by Inventor Teruo Misumi

Teruo Misumi 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: 5756250
    Abstract: An electrophotographic apparatus employs a charger for charging a cylindrical photosensitive member having a photoconductive layer of amorphous silicon containing 10 to 40 atomic % hydrogen; an exposing station for imagewise exposing the member to form an electrostatic latent image; a developer station for developing the latent image to form a toner image; a transfer station for transferring the toner image to an image receiving sheet and a blade for cleaning the surface of the cylindrical member.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 26, 1998
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Hirai, Toshiyuki Komatsu, Katsumi Nakagawa, Teruo Misumi, Tadaji Fukuda
  • Patent number: 5658703
    Abstract: A layer of amorphous silicon containing H, preferably 10-40 atomic % H, is used as a photoconductive layer for electrophotographic photosensitive member.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 19, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Hirai, Toshiyuki Komatsu, Katsumi Nakagawa, Teruo Misumi, Tadaji Fukuda
  • Patent number: 5640663
    Abstract: An electrophotographic process is conducted by charging a cylindrical photosensitive member having a photoconductive layer of amorphous silicon containing 10 to 40 atomic % hydrogen; imagewise exposing the member to form an electrostatic latent image; developing the latent image to form a toner image; transferring the toner image to an image receiving sheet and thereafter cleaning the surface of the cylindrical member with a cleaning blade.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 17, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Hirai, Toshiyuki Komatsu, Katsumi Nakagawa, Teruo Misumi, Tadaji Fukuda
  • Patent number: 5585149
    Abstract: A layer of amorphous silicon containing H, preferably 10-40 atomic % H, which is used as a photoconductive layer for electrophotographic photosensitive member, is formed by plasma CVD using a silane gas of a higher than monosilane.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: December 17, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yutaka Hirai, Toshiyuki Komatsu, Katsumi Nakagawa, Teruo Misumi, Tadaji Fukuda
  • Patent number: 5443645
    Abstract: A deposited film-forming apparatus comprising a reaction chamber capable of maintaining at a reduced pressure, means for arranging a substrate on which a film is to be formed in said reaction chamber, a gas feed means for supplying a gaseous raw material into said reaction chamber and means for introducing a microwave energy into said reaction chamber, characterized in that said gas feed means is arranged in the space circumscribed by said substrate, said gas feed means comprises a multiple pipe structure, said multiple pipe structure being connected to a gas supply source for supplying said gaseous raw material, the respective constituent pipes of said multiple pipe structure being provided with a plurality of gas spouting holes such that said gas spouting holes are in communication with each other, and means for applying a bias voltage between said substrate and said gas feed means.
    Type: Grant
    Filed: December 28, 1993
    Date of Patent: August 22, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hirokazu Otoshi, Tetsuya Takei, Yasuyoshi Takai, Ryuji Okamura, Shigeru Shirai, Teruo Misumi
  • Patent number: 4998968
    Abstract: A plasma CVD apparatus for forming a deposition film on a base by causing a discharge in a space between the base and an electrode has an auxiliary member removably arranged in electrical contact to the electrode on a face of the electrode which contributes to the discharge. The auxiliary member thus acts as the electrode.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: March 12, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventor: Teruo Misumi
  • Patent number: 4972799
    Abstract: In a microwave plasma chemical vapor deposition apparatus which comprises a substantially enclosed deposition chamber, a means for supporting a substrate on which a functional deposited film is to be formed, a means for supplying raw material gases, a means for evacuating the inside of said deposition chamber and a means for generating microwave discharge plasmas in said deposition chamber which includes a waveguide extending from a microwave power source and a microwave introducing window through which a microwave energy is to be introduced into said deposition chamber, the improvement characterized in that said apparatus is provided with a holding member capable of holding said microwave introducing window and said substrate and capable of sealing said deposition chamber in a air-tight state upon film-formation and said apparatus is provided with a means for transporting said holding member under vacuum condition.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: November 27, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Teruo Misumi, Masaaki Yamamura, Minoru Kato
  • Patent number: 4795688
    Abstract: A photoconductive member comprises a support for a photoconductive member and an amorphous layer having photoconductivity and containing an amorphous material comprising silicon atom as a matrix, said amorphous layer having a first layer region containing oxygen atoms and a second layer region containing Group III atoms of the Periodic Table Such that said Group III atoms are continuously distributed in the direction of the layer thickness and enriched at the support side and wherein oxygen is absent from said amorphous layer exclusive of the first layer region, said first layer region being present internally in the support side portion of the amorphous layer, and there being the following relationship:To/T.ltoreq.1where To is the layer thickness of the first layer region and T results from subtracting To from the layer thickness of the amorphous layer.
    Type: Grant
    Filed: April 17, 1987
    Date of Patent: January 3, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Teruo Misumi, Kyosuke Ogawa, Junichiro Kanbe, Keishi Saitoh, Yoichi Osato, Shigeru Shirai
  • Patent number: 4720443
    Abstract: A light-receiving member comprises a substrate for light-receiving member and a light-receiving layer of a multi-layer structure having a first layer comprising an amorphous material containing silicon atoms and germanium atoms, a second layer comprising an amorphous material containing silicon atoms and exhibiting a photoconductivity, and a surface layer comprising an amorphous material containing silicon atoms and carbon atoms provided on the substrate successively from the substrate side, said light-receiving layer having at least one pair of nonparallel interfaces within a short range and said nonparallel interfaces being arranged in a large number in at least one direction within the plane perpendicular to the layer thickness direction.
    Type: Grant
    Filed: March 29, 1985
    Date of Patent: January 19, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keishi Saitoh, Masahiro Kanai, Tetsuo Sueda, Teruo Misumi, Yoshio Tsuezuki, Kyosuke Ogawa
  • Patent number: 4707210
    Abstract: A plasma chemical vapor deposition apparatus comprises internal construction members comprising aluminum having surfaces exposed to a plasma atmosphere.
    Type: Grant
    Filed: April 28, 1986
    Date of Patent: November 17, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventor: Teruo Misumi
  • Patent number: 4705735
    Abstract: A light-receiving member comprises a substrate having a large number of protruding portions on a surface thereof, each of said protruding portions having at a predetermined cut position a sectional shape comprising a main projection and a subprojection, the main projection and the subprojection overlapping each other, and a light-receiving layer of a multi-layer structure having a first layer comprising an amorphous material containing silicon atoms and germanium atoms, a second layer comprising an amorphous material containing silicon atoms and exhibiting photoconductivity and a surface layer having reflection preventive function provided on the substrate successively from the substrate side.
    Type: Grant
    Filed: June 4, 1985
    Date of Patent: November 10, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keishi Saitoh, Tetsuo Sueda, Kyosuke Ogawa, Teruo Misumi, Yoshio Tsuezuki, Masahiro Kanai
  • Patent number: 4705731
    Abstract: A light-receiving member comprises a substrate having a large number of protruding portions on a surface thereof, each of said protruding portions having at a predetermined cut position a sectional shape comprising a main projection and a subprojection, the main projection and the subprojection overlapping each other, and a light-receiving layer with a multi-layer structure having a first layer comprising an amorphous material containing silicon atoms and germanium atoms, a second layer comprising an amorphous material containing silicon atoms and exhibiting photoconductivity, and a surface layer having the reflection preventive function provided successively from the substrate side, said light-receiving layer containing at least one selected from oxygen atoms, carbon atoms and nitrogen atoms.
    Type: Grant
    Filed: June 3, 1985
    Date of Patent: November 10, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keishi Saitoh, Tetsuo Sueda, Kyosuke Ogawa, Teruo Misumi, Yoshio Tsuezuki, Masahiro Kanai
  • Patent number: 4705734
    Abstract: A light-receiving member comprises a substrate having a large number of protruding portions on a surface thereof, each of said protruding portions having at a predetermined cut position a sectional shape comprising a main projection and a subprojection, the main projection and the subprojection overlapping each other, and a light-receiving layer comprising a layer comprising an amorphous material containing silicon atoms, at least a part of the layer region of which has photosensitivity and a surface layer comprising an amorphous material containing silicon atoms and carbon atoms.
    Type: Grant
    Filed: June 30, 1985
    Date of Patent: November 10, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keishi Saitoh, Tetsuo Sueda, Kyosuke Ogawa, Teruo Misumi, Yoshio Tsuezuki, Masahiro Kanai
  • Patent number: 4705732
    Abstract: A light-receiving member comprises a substrate having a large number of protruding portions on a surface thereof, each of said protruding portions having at a predetermined cut position a sectional shape comprising a main projection and a subprojection, the main projection and the subprojection overlapping each other, and a light-receiving layer of a multi-layer structure having a first layer comprising an amorphous material containing silicon atoms and germanium atoms and a second layer comprising an amorphous material containing silicon atoms and exhibiting photoconductivity provided on said substrate successively from the substrate side.
    Type: Grant
    Filed: April 24, 1985
    Date of Patent: November 10, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keishi Saitoh, Masahiro Kanai, Tetsuo Sueda, Teruo Misumi, Yoshio Tsuezuki, Kyosuke Ogawa
  • Patent number: 4705730
    Abstract: A light-receiving member comprises a substrate having a large number of projection parts, whose cross-sectional shape at a given cross-sectional position is a projection shape formed of a main peak and an auxiliary peak as overlapped, on the surface of the substrate, and a light-receiving layer comprising a layer containing an amorphous material including silicon atoms, at least one part of the layer region of the layer being photosensitive, and a surface layer having a reflection-preventive function.An electrophotographic system comprises the above-mentioned light-receiving member.
    Type: Grant
    Filed: May 31, 1985
    Date of Patent: November 10, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keishi Saitoh, Tetsuo Sueda, Kyosuke Ogawa, Teruo Misumi, Yoshio Tsuezuki, Masahiro Kanai
  • Patent number: 4705733
    Abstract: A substrate for light-receiving members has a large number of protruding portions on a surface thereof, each of said protruding portions having at a predetermined cut position a sectional shape comprising a main projection and a subprojection, the main projection and the subprojection overlapping each other.
    Type: Grant
    Filed: April 22, 1985
    Date of Patent: November 10, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keishi Saitoh, Masahiro Kanai, Tetsuo Sueda, Teruo Misumi, Yoshio Tsuezuki, Kyosuke Ogawa
  • Patent number: 4701392
    Abstract: A light receiving member comprises a substrate for light receiving member, a surface layer having reflection preventive function and a light receiving layer of a multi-layer structure having at least one photosensitive layer comprising an amorphous material containing silicon atoms on the substrate, said light receiving layer having at least one pair of non-parallel interfaces within a short range and said non-parallel interfaces being arranged in a large number in at least one direction within the plane perpendicular to the layer thickness direction.
    Type: Grant
    Filed: April 4, 1985
    Date of Patent: October 20, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keishi Saitoh, Masahiro Kanai, Tetsuo Sueda, Teruo Misumi, Yoshio Tsuezuki, Kyosuke Ogawa
  • Patent number: 4701393
    Abstract: A light receiving member comprises a light receiving layer of a multi-layer structure having a first layer comprising an amorphous material containing silicon atoms and germanium atoms, a second layer comprising an amorphous material containing silicon atoms and exhibiting photoconductivity and a surface layer having reflection preventive function provided on a substrate successively from the substrate side, said light receiving layer having at least one pair of non-parallel interfaces within a short range and said non-parallel interfaces being arranged in a large number in at least one direction within the plane perpendicular to the layer thickness direction.
    Type: Grant
    Filed: April 4, 1985
    Date of Patent: October 20, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keishi Saitoh, Masahiro Kanai, Tetsuo Sueda, Teruo Misumi, Yoshio Tsuezuki, Kyosuke Ogawa
  • Patent number: 4696884
    Abstract: A light-receiving member comprises a light-receiving layer of a multi-layer structure having at least one photosensitive layer on a substrate, said photosensitive layer having at least one pair of non-parallel interfaces within a short range and said non-parallel interfaces being arranged in a large number in at least one direction within the plane perpendicular to the layer thickness direction, each of said non-parallel interfaces being smoothly continuous in the direction in which they are arranged.
    Type: Grant
    Filed: February 26, 1985
    Date of Patent: September 29, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keishi Saitoh, Masahiro Kanai, Tetsuo Sueda, Teruo Misumi, Yoshio Tsuezuki, Kyosuke Ogawa
  • Patent number: RE35198
    Abstract: Image-forming member for electrophotography comprising a charge generation layer composed of hydrogenated amorphous silicon.
    Type: Grant
    Filed: September 15, 1993
    Date of Patent: April 2, 1996
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsumi Nakagawa, Toshiyuki Komatsu, Yutaka Hirai, Teruo Misumi, Tadaji Fukuda