Patents by Inventor Toshiyuki Komatsu

Toshiyuki Komatsu 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: 4746535
    Abstract: A photosensor comprising a photoconductive layer provided on a substrate. The layer contains amorphous silicon. At least a portion of the layer has a refractive index varying continuously through the thickness of the layer. The refractive index of the layer is 3.2 or less at a wavelength of 6,328 .ANG. in the vicinity of the surface of the substrate. A pair of electrodes are provided in electrical contact with the photoconductive layer. A photoreceptor is also provided, part of which is constituted by the spacing between the electrodes of the pair.
    Type: Grant
    Filed: September 25, 1987
    Date of Patent: May 24, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaki Fukaya, Toshiyuki Komatsu, Tatsumi Shoji, Masaru Kamio, Nobuyuki Sekimura
  • Patent number: 4745041
    Abstract: An image-forming member for electrophotography has a photoconductive layer comprising a hydrogenated amorphous semiconductor composed of silicon and/or germanium as a matrix and at least one chemical modifier such as carbon, nitrogen and oxygen contained in the matrix.
    Type: Grant
    Filed: November 18, 1986
    Date of Patent: May 17, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiyuki Komatsu, Yutaka Hirai, Katsumi Nakagawa, Tadaji Fukuda
  • Patent number: 4743750
    Abstract: A photosensor having a substrate, a photoconductive layer formed on the substrate and containing amorphous silicon, a pair of electrodes electrically connected to the photoconductive layer and a light receiving section having a predetermined area for applying light to the photoconductive layer, wherein the photoconductive layer is formed by producing a precursor (SiX) including at least silicon atoms and halogen atoms and an active seed (H) including hydrogen atoms, at the region outside of a layer forming spatial region where the photoconductive layer is formed, and by introducing the precursor and the active seed into the layer forming spatial region to deposit amorphous silicon on the surface of the substrate.
    Type: Grant
    Filed: April 9, 1986
    Date of Patent: May 10, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiyuki Komatsu, Masaki Fukaya, Satoshi Itabashi
  • Patent number: 4742239
    Abstract: A line photosensor comprising a plurality of sensor elements in at least one row on a substrate and a plurality of extract wiring electrodes extending from the respective sensor elements. The extract wiring electrodes are wired in an electrically isolated and laminated manner. The extract wiring electrodes are laminated such that they hold therebetween a laminated structure including a first insulating layer, an intermediate electrode layer formed on the first insulating layer, and a second insulating layer formed on the intermediate electrode layer.
    Type: Grant
    Filed: March 21, 1986
    Date of Patent: May 3, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsumi Nakagawa, Toshiyuki Komatsu, Masaki Fukaya, Hirofumi Iwamoto, Shinichi Seito
  • Patent number: 4737428
    Abstract: An image-forming member for electrophotography comprises a photoconductive layer including as constituting layers, a hydrogenated amorphous silicon layer and an amorphous inorganic semiconductor layer. The amorphous inorganic semiconductor layer is laminated on the hydrogenated amorphous silicon layer to thereby provide a heterojunction.
    Type: Grant
    Filed: July 23, 1987
    Date of Patent: April 12, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eiichi Inoue, Isamu Shimizu, Toshiyuki Komatsu
  • Patent number: 4737653
    Abstract: An image sensor comprising at least one first light emitting element for irradiating an original with light, at least one photoconductive element for sensing the light via the original and at least one second light emitting element for irradiating the photoconductive element with light. The second light emitting element emits light of photoenergy smaller than the optical band gap of the photoconductive element.
    Type: Grant
    Filed: April 11, 1986
    Date of Patent: April 12, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsumi Nakagawa, Shinichi Seito, Katsunori Hatanaka, Toshiyuki Komatsu
  • Patent number: 4724323
    Abstract: A photosensor comprising a photoconductive layer provided on a substrate. The layer contains amorphous silicon. At least a portion of the layer has a refractive index varying continuously through the thickness of the layer. The refractive index of the layer is 3.2 or less at a wavelength of 6,328 .ANG. in the vicinity of the surface of the substrate. A pair of electrodes are provided in electrical contact with the photoconductive layer. A photoreceptor is also provided, part of which is constituted by the spacing between the electrodes of the pair.
    Type: Grant
    Filed: September 30, 1985
    Date of Patent: February 9, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaki Fukaya, Toshiyuki Komatsu, Tatsumi Shoji, Masaru Kamio, Nobuyuki Sekimura
  • Patent number: 4719501
    Abstract: A semiconductor element is mainly composed of a polycrystalline Si thin film layer containing 0.01-3 atomic %, and further having a maximum surface unevenness of substantially not more than 800 .ANG. and/or a particular range of etching rate when etched with a predetermined etchant.
    Type: Grant
    Filed: December 26, 1985
    Date of Patent: January 12, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsumi Nakagawa, Toshiyuki Komatsu, Yutaka Hirai, Yoshiyuki Osada, Satoshi Omata, Takashi Nakagiri
  • Patent number: 4701394
    Abstract: An image-forming member for electrophotography comprises a photoconductive layer including as constituting layers, a hydrogenated amorphous silicon layer and an amorphous inorganic semiconductor layer. The amorphous inorganic semiconductor layer is laminated on the hydrogenated amorphous silicon layer to thereby provide a heterojunction.
    Type: Grant
    Filed: October 24, 1986
    Date of Patent: October 20, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eiichi Inoue, Isamu Shimizu, Toshiyuki Komatsu
  • Patent number: 4700080
    Abstract: A color photosensor which includes a plurality of closely arranged sensor units. Each sensor includes a color filter provided at a position corresponding to that of a photoreceptor. The color filter comprises at least one of coloring matter layers selected from the following groups (A), (B) and (C):(A) A red coloring matter layer including, as a main component, perylenetetracarboxylic acid derivatives selected from the following structural formulas (I) and (II): ##STR1## where R.sub.1 denotes hydrogen, an alkyl group or an allyl group; (B) a green coloring matter layer including, as a main component, phthalocyanine coloring matter, a combination of phthalocyanine coloring matter and isoindolenone coloring matter, or a combination of phthalocyanine coloring matter and authraquinone coloring matter; and(C) a blue coloring matter layer including, as a main component, phthalocyanine coloring matter, or a combination of phthalocyanine coloring matter and quinacridon coloring matter.
    Type: Grant
    Filed: February 25, 1987
    Date of Patent: October 13, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masaki Fukaya, Toshiyuki Komatsu, Tatsumi Shoji, Masaru Kamio, Nobuyuki Sekimura
  • Patent number: 4680644
    Abstract: There is a method and an apparatus for reading an image in which the light emitted from a light source through an original is converted into an electric signal by a photoelectric converting device and is outputted as an image singal. In this method, a compensation light is radiated onto the photoelectric converting device and thereby causing a compensation signal to be generated therefrom; this compensation signal is stored into a memory; an original image is then read; and the read signal is compensated by the compensation signal stored in the memory. The compensation light corresponds to each intensity of lights which are obtained through a reference original to be read and which are received by the photoelectric converting device. By use of this method in an original reading section of a facsimile apparatus or the like, an ununiformity and a variation in signal of each bit which is read by the photoelectric converting device are compensated, so that a stable output image signal can be derived.
    Type: Grant
    Filed: July 17, 1985
    Date of Patent: July 14, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yoshiaki Shirato, Toshiyuki Komatsu, Shinichi Seito, Tatsundo Kawai, Hirofumi Iwamoto, Katsumi Nakagawa, Yasuo Kuroda
  • Patent number: 4673628
    Abstract: An image-forming member for electrophotography comprises a photoconductive layer including as constituting layers, a hydrogenated amorphous silicon layer and an amorphous inorganic semiconductor layer. The amorphous inorganic semiconductor layer is laminated on the hydrogenated amorphous silicon layer to thereby provide a heterojunction.
    Type: Grant
    Filed: March 16, 1982
    Date of Patent: June 16, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Eiichi Inoue, Isamu Shimizu, Toshiyuki Komatsu
  • Patent number: 4670369
    Abstract: Image-forming member for electrophotography comprising a charge generation layer composed of hydrogenated amorphous silicon.
    Type: Grant
    Filed: June 11, 1986
    Date of Patent: June 2, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsumi Nakagawa, Toshiyuki Komatsu, Yutaka Hirai, Teruo Misumi, Tadaji Fukuda
  • Patent number: 4667214
    Abstract: A photosensor comprises a glass substrate, a photoelectric converting layer comprising a silicon-based amorphous material, and a pair of electrode layers in electrical contact with the photoelectric converting layer, wherein one or both sides of the glass substrate are covered with dielectric layers and the photoelectric converting layer is formed upon the dielectric layer.
    Type: Grant
    Filed: June 18, 1984
    Date of Patent: May 19, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Nobuyuki Sekimura, Masaki Fukaya, Katsumi Nakagawa, Toshiyuki Komatsu, Tatsumi Shoji, Teruhiko Furushima
  • Patent number: 4664998
    Abstract: An image-forming member for electro-photography has a photoconductive layer comprising a hydrogenated amorphous semiconductor composed of silicon and/or germanium as a matrix and at least one chemical modifier such as carbon, nitrogen and oxygen contained in the matrix.
    Type: Grant
    Filed: October 22, 1985
    Date of Patent: May 12, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiyuki Komatsu, Yutaka Hirai, Katsumi Nakagawa, Tadaji Fukuda
  • Patent number: 4658280
    Abstract: A photosensor comprises a first layer, a second layer and a third layer laminated successively, each layer comprising amorphous silicon and the third layer having at least a pair of electrodes separated from each other at a given interval, characterized in that said second layer has p-type semiconductor characteristics, said first layer and said third layer have semiconductor characteristics of a conduction type different from that of said second layer, and at least said first layer has photoconductivity.
    Type: Grant
    Filed: March 7, 1984
    Date of Patent: April 14, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiyuki Komatsu, Katsumi Nakagawa, Masaki Fukaya, Tatsumi Shoji
  • Patent number: 4625224
    Abstract: A semiconductor element having a main part of a polycrystalline silicon semiconductor layer containing 0.01 to 5 atomic % of chlorine atoms.
    Type: Grant
    Filed: January 10, 1983
    Date of Patent: November 25, 1986
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsumi Nakagawa, Toshiyuki Komatsu, Yoshiyuki Osada, Satoshi Omata, Yutaka Hirai, Takashi Nakagiri
  • Patent number: 4613558
    Abstract: Image-forming member for electrophotography comprising a charge generation layer composed of hydrogenated amorphous silicon.
    Type: Grant
    Filed: August 7, 1985
    Date of Patent: September 23, 1986
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsumi Nakagawa, Toshiyuki Komatsu, Yutaka Hirai, Teruo Misumi, Tadaji Fukuda
  • Patent number: 4565731
    Abstract: An image-forming member for electro-photography has a photoconductive layer comprising a hydrogenated amorphous semiconductor composed of silicon and/or germanium as a matrix and at least one chemical modifier such as carbon, nitrogen and oxygen contained in the matrix.
    Type: Grant
    Filed: September 15, 1982
    Date of Patent: January 21, 1986
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshiyuki Komatsu, Yutaka Hirai, Katsumi Nakagawa, Tadaji Fukuda
  • Patent number: 4557990
    Abstract: Image-forming member for electrophotography comprising a charge generation layer composed of hydrogenated amorphous silicon.
    Type: Grant
    Filed: December 23, 1983
    Date of Patent: December 10, 1985
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsumi Nakagawa, Toshiyuki Komatsu, Yutaka Hirai, Teruo Misumi, Tadaji Fukuda