Patents by Inventor Tatsuyuki Aoike

Tatsuyuki Aoike 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: 4981766
    Abstract: A light receiving member for electrophotography made up of an aluminum support and a multilayered light receiving layer exhibiting photoconductivity formed on the aluminum support, wherein the multilayered light receiving layer consists of a lower layer in contact with the support and an upper layer, the lower layer being made of an inorganic material containing at least aluminum atom (Al), silicon atoms (Si) and hydrogen atoms (H), and having portion in which the aluminum atoms (Al), silicon atoms (Si), and hydrogen atoms (H) are unevenly distributed across the layer thickness, the upper layer being made of a non-single-crystal material composed of silicon atoms (Si) as the matrix and at least either of hydrogen atoms (H) or halogen atoms (X) and containing at least one of carbon atoms, nitrogen atoms (N) and oxygen atoms (O) in the layer region in adjacent with the lower layer.
    Type: Grant
    Filed: September 6, 1989
    Date of Patent: January 1, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuyuki Aoike, Masafumi Sano, Takehito Yoshino, Toshimitsu Kariya, Hiroaki Niino
  • Patent number: 4954397
    Abstract: An improved light receiving member for use in electrophotography having a light receiving layer provided with a charge carrier generation layer (hereinafter referred to as "CGL") and a charge carrier transport layer (hereinafter referred to as "CTL"), the CGL being formed of a non-single-crystal material composed substantially of silicon atom as the main constituent atom and at least one kind selected from hydrogen atom and halogen atom and the CTL being formed of a Non-Si(H,X) material containing carbon atom and a conductivity controlling element selected from the group consisting of boron, aluminum, gallium, indium and thallium belonging to group III of the Periodic Table or from the group consisting of phosphorus, arsenic, antimony and bismuth belonging to group V of the Periodic Table in an uneven state in the thicknesswise direction, and optionally at least one kind selected from oxygen atom and nitrogen atom in this order from the side of a substrate.
    Type: Grant
    Filed: October 18, 1989
    Date of Patent: September 4, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Amada, Tatsuyuki Aoike, Takehito Yoshino, Ryuji Okamura
  • Patent number: 4906543
    Abstract: There is provided an improved light receiving member for electrophotography which is made up of an aluminum support and a multilayered light receiving layer exhibiting photoconductivity formed on said aluminum support, wherein said multilayered light receiving layer consists of a lower layer in contact with said support and an upper layer, said lower layer being made of an inorganic material containing at least aluminum atoms (Al), silicon atoms (Si), and hydrogen atoms (H), and having a part in which said aluminum atoms (Al), silicon atoms (Si), and hydrogen atoms (H) are unevenly distributed across the layer thickness, said upper layer being made of a non-single-crystal material composed of silicon atoms (Si) as the matrix and at least either of hydrogen atoms (H) or halogen atoms (X), and containing at least either of germanium atoms or tin atoms in a layer region in contact with said lower layer.
    Type: Grant
    Filed: April 21, 1988
    Date of Patent: March 6, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuyuki Aoike, Masafumi Sano, Takehito Yoshino, Toshimitsu Kariya, Hiroaki Niino
  • Patent number: 4906542
    Abstract: A light receiving member for electrophotography made up of an aluminum support and a multilayered light receiving layer exhibiting photoconductivity formed on the aluminum support, wherein the multilayered light receiving layer consists of a lower layer in contact with the support and an upper layer, the lower layer being made of an inorganic material containing at least aluminum atom (Al), silicon atoms (Si) and hydrogen atoms (H), and having portion in which the aluminum atoms (Al), silicon atoms (Si), and hydrogen atoms (H) are unevenly distributed across the layer thickness, the upper layer being made of a non-single-crystal material composed of silicon atoms (Si) as the matrix and at least either of hydrogen atoms (H) or halogen atoms (X) and containing at least one of carbon atoms, nitrogen atoms (N) and oxygen atoms (O) in the layer region in adjacent with the lower layer.
    Type: Grant
    Filed: April 20, 1988
    Date of Patent: March 6, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuyuki Aoike, Masafumi Sano, Takehito Yoshino, Toshimitsu Kariya, Hiroaki Niino
  • Patent number: 4886723
    Abstract: There is provided an improved light receiving member for electrophotography which is made up of an aluminum support and a multilayered light receiving layer exhibiting photoconductivity formed on said aluminum support, wherein said multilayered light receiving layer consists of a lower layer in contact with said support and an upper layer, said lower layer being made of an inorganic material containing at least aluminum atoms (Al), silicon atoms (Si), and hydrogen atoms (H), and having a part in which said aluminum atoms (Al), silicon atoms (Si), and hydrogen atoms (H) are unevenly distributed across the layer thickness, said upper layer being made of a non-single material composed of silicon atoms (Si) as the matrix and at least either of hydrogen atoms (H) or halogen atoms (X). The light receiving member for electrophotography exhibits outstanding electric characteristics, optical characteristics, photoconductive characteristics, durability, image characteristics, and adaptability to use environments.
    Type: Grant
    Filed: April 15, 1988
    Date of Patent: December 12, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuyuki Aoike, Masafumi Sano, Takehito Yoshino, Toshimitsu Kariya, Hiroaki Niino
  • Patent number: 4882251
    Abstract: A light receiving member for electrophotography made up of an aluminum support and a multilayered light receiving layer exhibiting photoconductivity formed on the aluminum support, wherein the multilayered light receiving layer consists of a lower layer in contact with the support and an upper layer, the lower layer being made of an inorganic material containing at least aluminum atom (Al), silicon atoms (Si) and hydrogen atoms (H), and having portion in which the aluminum atoms (Al), silicon atoms (Si), and hydrogen atoms (H) are unevenly distributed across the layer thickness, the upper layer being made of a non-single-crystal material composed of silicon atoms (Si) as the matrix and at least either of hydrogen atoms (H) or halogen atoms (X) and containing atoms to control conductivity in the layer region in adjacent with the lower layer.
    Type: Grant
    Filed: April 19, 1988
    Date of Patent: November 21, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuyuki Aoike, Masafumi Sano, Takehito Yoshino, Toshimitsu Kariya, Hiroaki Niino
  • Patent number: 4845001
    Abstract: Improved light receiving members which are characterized by having an special surface layer formed of a non-monocrystalline material containing tetrahedrally bonded boron nitride or a non-monocrystalline material containing said boron nitride and trihedrally bonded boron nitride in mingled state or by having an especial surface layer constituted with a lower layer formed of a non-monocrystalline material containing tetrahedrally bonded boron nitride and an upper layer formed of a non-monocrystalline material containing tetrahedrally bonded boron nitride and trihedrally bonded boron nitride in mingled state. The improved light receiving members excel particularly in moisture resistance, repeating use characteristic, electrical voltage withstanding property environmental use characteristic and durability.
    Type: Grant
    Filed: April 29, 1987
    Date of Patent: July 4, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Takei, Keishi Saito, Tatsuyuki Aoike, Yasushi Fujioka
  • Patent number: 4795691
    Abstract: This is provided an improved light receiving member having at least a photoconductive layer constituted with A-Si(H,X) series material and a surface layer constituted with A-Si(C,O,N)(H,X) for use in electrophotography, etc. which is characterized in that the atom(C,O,N) is contained in the surface layer in a state that the concentration of the atom(C,O,N) is grown increasingly starting from the position of the interface between the surface layer and the photoconductive layer while leaving a portion corresponding to a refractive index difference (.DELTA.n) [.DELTA.n.ltoreq.0.62] between the refractive index of the surface layer and that of the photoconductive layer which can be disregarded in the image-making process toward the free surface of the surface layer.
    Type: Grant
    Filed: April 15, 1987
    Date of Patent: January 3, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Takei, Tatsuyuki Aoike, Minoru Kato, Keishi Saito