Patents by Inventor Shuhei Tsuchimoto

Shuhei Tsuchimoto 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: 5011818
    Abstract: A superconductive magneto-resistive device is made up of superconductive materials having grain boundaries which act as weak couplings. The superconductive material will change from the superconductive state to the normal state when a magnetic field is applied to the material. The superconductive material can be used in various devices for measuring.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: April 30, 1991
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shoei Katoka, Shuhei Tsuchimoto, Hideo Nojima, Ryusuke Kita, Masaya Nagata
  • Patent number: 5004905
    Abstract: A contact type image sensor comprising a light-detecting element array formed on a substrate, a light source for irradiating an original to be read, and an optical fiber array disposed between said light-detecting element array and said original to be read, said optical fiber array being formed by laminating an optical fiber array member that is composed of optical fibers not coated with an absorber on an optical fiber array member that is composed of optical fibers coated with an absorber, said optical fibers being disposed between said light-detecting element array and said original to be read, and said light source being disposed at the light emission side of said optical fiber array, thereby attaining a precise irradiation of an original with light from a light source and reliably shuts off the leakage to maintain excellent resolution characteristics of the sensor.
    Type: Grant
    Filed: November 8, 1989
    Date of Patent: April 2, 1991
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Atsushi Yoshinouchi, Masataka Itoh, Shuhei Tsuchimoto
  • Patent number: 4983741
    Abstract: 1,2,4,5-Benzoylenebis(naphtho[2,3-d]imidazole compounds of the following formula (I) or (II): ##STR1## wherein R and R' each are a hydrogen atom, a halogen atom, a hydroxyl group, a carboxyl group which may be esterified, a sulfonic acid group which may be esterified, a lower alkyl group, a lower alkenyl group, a lower alkoxy group, an aryl group which may be substituted, an aralkyl group which may be substituted, a carbamoyl group which may be substituted or a sulfamoyl group which may be substituted and m and n each are an integer of 1 or 2, and photosensitive members for electrophotography having a photosensitive layer containing these compounds.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: January 8, 1991
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Satoshi Katayama, Eiji Imada, Shuhei Tsuchimoto
  • Patent number: 4964366
    Abstract: An apparatus for the production of photoconductive components for use in electrophotography, including a coating tank that contains a certain amount of coating, the tank having a coating-supply opening, at a lower portion through which the coating is supplied to the tank, and a partition that is positioned between the inner wall of the tank and the outer wall of the electric conductor, whereby when an electric conductor to be coated is immersed in the coating and removed from the coating, occurrence of a turbulent flow of the coating in the vicinity of the electric conductor can be prevented.
    Type: Grant
    Filed: October 27, 1988
    Date of Patent: October 23, 1990
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Makoto Kurokawa, Yoshihide Shimoda, Shuhei Tsuchimoto
  • Patent number: 4963451
    Abstract: 1,2,4,5-Benzoylenebis(anthraquinone[1,2-d]imidazole) compounds represented by following general formula (1) or (2) ##STR1## wherein R and R' each are hydrogen atom, a halogen atom, hydroxyl group, a lower alkyl group, a lower alkoxy group or an aryl group which may be substituted and m and n each are an integer of 1 or 2, and photosensitive members for electrophotography having a photosensitive layer containing them.
    Type: Grant
    Filed: September 22, 1989
    Date of Patent: October 16, 1990
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Satoshi Katayama, Yoshihide Shimoda, Hiroshi Sugimura, Eiji Imada, Shuhei Tsuchimoto
  • Patent number: 4942481
    Abstract: A contact-type image sensor comprising a light source that illuminates the manuscript to be read; photodetectors that convert the light reflected by the manuscript into an electrical signal; a substrate that is disposed between the photodetectors and the manuscript; an optical fiber array that is constituted by a bundle of optical fibers that are buried in the substrate, the optical fiber array introducing the reflected light from the manuscript into the light-receiving surfaces of the photodetectors; and a light-absorbing substance that is disposed on the outer surface of each of the optical fibers, wherein the light-absorbing substance is disposed on the outer surface of each of the optical fibers, except for the region with a given length from the end of the optical fiber array that faces the manuscript.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: July 17, 1990
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Atsushi Yoshinouchi, Masataka Itoh, Shuhei Tsuchimoto, Keiji Tarui, Satoshi Nishigaki
  • Patent number: 4939591
    Abstract: A contact-type image sensor comprising a light source that illuminates the manuscript to be read; photodetectors that convert the light reflected by the manuscript into an electrical signal; a substrate that is disposed between the photodetectors and the manuscript, a bundle of optical fibers being buried in the substrate; and wiring electrodes that are disposed on the top surface of the substrate corresponding to the light-emitting face of the bundle of optical fibers and that are disposed on the light-receiving surfaces of the photodetectors, wherein the photodetectors are disposed in such a manner that the light-receiving surfaces of the photodetectors face the light-emitting face of the bundle of optical fibers, the wiring electrodes disposed on the photodetectors being electrically bonded to the wiring electrodes disposed on the substrate.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: July 3, 1990
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masataka Itoh, Atsushi Yoshinouchi, Satoshi Nishigaki, Takashi Nukii, Shuhei Tsuchimoto
  • Patent number: 4908457
    Abstract: 1,2,4,5-benzoylenebis(anthraquinone[1,2-d]imidazole) compounds represented by following general formula (1) or ##STR1## wherein R and R' each are hydrogen atom, a halogen atom, hydroxyl group, a lower alkyl group, a lower alkoxy group or an aryl group which may be substituted and m and n each are an integer of 1 or 2, and photosensitive members for electrophotography having a photosensitive layer containing them.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: March 13, 1990
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Satoshi Katayama, Yoshihide Shimoda, Hiroshi Sugimura, Eiji Imada, Shuhei Tsuchimoto
  • Patent number: 4883733
    Abstract: An electrophotographic printing process is disclosed that comprises the steps of: imagewise exposing a photosensitive means with light of a wavelength at which photochromism occurs, to thereby record the image therein, wherein said photosensitive means has a photosensitive layer formed on a conductive support, said photosensitive layer containing a photochromically sensitive compound that shows photoconductivity when irradiated with light of different wavelengths before and after said photochromism occurs; charging the entire surface of said photosensitive layer; and uniformly exposing said photosensitive means with light of a wavelength at which photochromism does not occur, but at which said photochromically sensitive compound or photoisomeric compound therewith shows photoconductivity, to thereby form the image of a charge pattern on the surface of said photosensitive layer.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: November 28, 1989
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Sugimura, Eiji Imada, Yoshimi Kojima, Shuhei Tsuchimoto
  • Patent number: 4859060
    Abstract: A variable interferometric device comprising a Fabry-Perot interferometer composed of a pair of reflecting substances facing each other with a space therebetween formed by spacers and a means for deforming at least one of the reflecting substances constituting said Fabry-Perot interferometer to thereby change the interferometric characteristics of said Fabry-Perot interferometer.
    Type: Grant
    Filed: November 25, 1986
    Date of Patent: August 22, 1989
    Assignee: 501 Sharp Kabushiki Kaisha
    Inventors: Masayuki Katagiri, Masanori Watanabe, Kazutaka Uda, Masaya Hijikigawa, Shuhei Tsuchimoto, Yasuhiko Inami
  • Patent number: 4828876
    Abstract: A process for preparing a photoelectric conversion film containing one or more compound semiconductor made from Cd and group Vi element comprises coating a paste containing (a) a photoelectric conversion material, (b) a dopant, (c) a flux, (d) an organic binder, and optionally (e) a glass frit on a substrate, and sintering it at 300.degree. C.-800.degree. C. in an inert gas blanket.
    Type: Grant
    Filed: February 4, 1986
    Date of Patent: May 9, 1989
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Soji Ohhara, Satoshi Nishigaki, Shuhei Tsuchimoto, Ryusuke Kita
  • Patent number: 4824539
    Abstract: A Co-Cr perpendicular magnetic recording medium includes a chromium oxide film formed on a Co-Cr perpendicular magnetization film, and a SiO.sub.2 protective film formed on the chromium oxide film. The chromium oxide film is formed by conducting a heating treatment to the surface of the Co-Cr perpendicular magnetization film in an oxygen atmosphere of about 10 .sup.-4 to 10.sup.-3 Torr, at a temperature of about 300.degree. C. to 400.degree. C. for about two hours. The chromium oxide film has a thickness of about 20 to 200 .ANG.. The SiO.sub.2 protective film has a thickness greater than 50 .ANG., but the total thickness of the chromium oxide film and the SiO.sub.2 protective film is selected between 70 and 300 .ANG..
    Type: Grant
    Filed: December 30, 1987
    Date of Patent: April 25, 1989
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tomohisa Komoda, Mamoru Ishizuka, Shuhei Tsuchimoto, Mitsuhiko Yoshikawa
  • Patent number: 4766085
    Abstract: A method for manufacturing a contact type one-dimensional image sensor, which includes the step of providing a light receiving element portion composed of one or more of Group II-VI compounds semiconductor containing Cd on a substrate, and also providing a matrix wiring portion on the same substrate as that of the light receiving element portion, and the method is characterized by the step of forming an insulating layer for the formation of the matrix wiring portion in such a manner as to cover the light receiving element portion.
    Type: Grant
    Filed: August 7, 1986
    Date of Patent: August 23, 1988
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Satoshi Nishigaki, Ryusuke Kita, Shuhei Tsuchimoto, Akiteru Rai, Masaru Iwasaki, Yuzi Matsuda, Takashi Nukii
  • Patent number: 4759951
    Abstract: A process for producing a photoelectric conversion film comprising heat-treating a coating (A) of a photoconductive material composed chiefly of at least one of CdSe, CdS, CdTe, CdS.sub.x Se.sub.1-x and CdS.sub.x Te.sub.1-x wherein x is a real number of less than 1, opposite from a coating (B) in proximity thereto, the coating (B) being made of a material composed chiefly of CdS and a Cd halide.
    Type: Grant
    Filed: September 23, 1986
    Date of Patent: July 26, 1988
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masataka Itoh, Masaya Nagata, Shuhei Tsuchimoto, Atsushi Yoshinouchi, Hiroshi Wada, Katsushi Okibayashi, Soji Ohhara
  • Patent number: 4725482
    Abstract: A Co-Cr perpendicular magnetic recording medium includes a chromium oxide film formed on a Co-Cr perpendicular magnetization film, and a SiO.sub.2 protective film formed on the chromium oxide film. The chromium oxide film is formed by conducting a heating treatment to the surface of the Co-Cr perpendicular magnetization film in an oxygen atmosphere of about 10.sup.-4 to 10.sup.-3 Torr, at a temperature of about 300.degree. C. to 400.degree. C. for about two hours. The chromium oxide film has a thickness of about 20 to 200 .ANG.. The SiO.sub.2 protective film has a thickness greater than 50 .ANG., but the total thickness of the chromium oxide film and the SiO.sub.2 protective film is selected between 70 and 300 .ANG..
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: February 16, 1988
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tomohisa Komoda, Mamoru Ishizuka, Shuhei Tsuchimoto, Mitsuhiko Yoshikawa
  • Patent number: 4701997
    Abstract: A method of making a photo-electric converting element which includes the steps of forming a photoconductive layer on an insulative substrate by applying a single substance of Group II-VI compound semiconductors which include Cd, or two or more Group II-VI compound powders; and then baking to form a photoconductive layer having a thickness of 1 to 10 .mu.m and a surface roughness of 0.2 to 1 .mu.m and also having its peripheral edge tapered outwardly with respect to the substrate at an angle not greater than 60.degree. and forming a counterelectrode by the use of a lift-off technique so as to overlay a portion of the photoconductive layer.
    Type: Grant
    Filed: August 8, 1986
    Date of Patent: October 27, 1987
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Ryusuke Kita, Satoshi Nishigaki, Shuhei Tsuchimoto