Patents by Inventor Toshihiko Ochiai

Toshihiko Ochiai 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: 5258782
    Abstract: A device is provided which is capable of removing the charge of a recording medium, even a low charge. The recording medium has an electrically-conductive layer and dielectric layers, and is used for forming a toner image by an image forming apparatus. The device includes a first charge-removing electrode in contact with the electrically-conductive layer of the recording medium and a second charge-removing electrode which is in contact with the dielectric layer of the recording medium and is positioned on a side of the recording medium which is opposite to the side of the first charge-removing electrode. A voltage with the same polarity as that remaining on the surface of the dielectric layer of the recording medium is applied to the first charge-removing electrode, and a voltage with a polarity opposite to that remaining on the surface of the dielectric layer is applied to the second charge-removing electrode.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: November 2, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshihiko Ochiai
  • Patent number: 5198840
    Abstract: An image forming apparatus forms a record image with developer on a recording medium by supplying the developer between a plurality of recording electrodes and the recording medium disposed in confronting relation to the recording electrodes and by applying a signal voltage to the recording electrodes in response to image information. The image forming apparatus improves the image quality and simplifies the apparatus by providing a prevention means disposed proximate the recording electrodes and downstream thereof in a developer moving direction, for preventing the developer from shifting.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: March 30, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshihiko Ochiai, Takeshi Matoba
  • Patent number: 5077566
    Abstract: An image forming apparatus includes recording electrodes electrically isolated from each other; a recording medium movable relative to the recording electrodes; developer supplier for supplying a conductive developer into between the recording electrodes and the recording medium; developer remover contactable to the recording medium to remove the developer from the recording medium; humidity detector for detecting an ambient humidity; and a bias applying device for applying a different bias voltage to the developer remover in accordance with an output of the humidity detector.
    Type: Grant
    Filed: July 20, 1990
    Date of Patent: December 31, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshihiko Ochiai, Hakaru Muto, Tetsuya Kobayashi, Yujiro Ando
  • Patent number: 4989021
    Abstract: The cleaning device for removing the toner image formed by conductive and magnetic toner from the recording medium. The cleaning device includes a rubbing member made of an electrically conductive brush of soft material or a conductive resin blade made of soft material to clean the recording medium. The cleaning device is disposed upstream of the recording position. Damage of the recording material by cleaning is prevented according to the present invention.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: January 29, 1991
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshihiko Ochiai, Yujiro Ando
  • Patent number: 4910538
    Abstract: An image forming apparatus for forming an image by applying a toner on a recording medium by means of an electrostatic force has a belt-like recording medium comprising a laminated layer region. The laminated layer region includes (1) a conductive layer, (2) a surface insulating layer disposed on said conductive layer and having a conductive-layer region in which a portion of the conductive layer is exposed from the surface insulating layer, and (3) a protective layer comprising conductive particles dispersed in resin provided on a surface of the exposed conductive-layer region. Support structure is provided for stretching the belt-like recording medium. A driving source is also included for driving the belt-like recording medium. A conductive contact is provided for rubbing the exposed conductive-layer region, and a wiring member is provided for connecting the conductive contact to a biasing source.
    Type: Grant
    Filed: August 3, 1989
    Date of Patent: March 20, 1990
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshihiko Ochiai, Yujiro Ando
  • Patent number: 4831394
    Abstract: A recording electrode assembly which is relatively moved with respect to a recording medium, for depositing onto the recording medium electrically conductive and magnetic toner magnetically conveyed, the assembly includes an array of recording electrodes, electrically isolated from each other, adapted to be supplied with an electric voltage representing information to be recorded, wherein the array is adapted to extend transversely with a direction of the relative movement of the recording material; a supporting member for supporting the array of the recording electrodes; and a conductive member, electrically isolated from the recording electrodes, for providing a surface member at an upstream of the recording electrodes with respect to a direction of movement of the toner magnetically conveyed.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: May 16, 1989
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toshihiko Ochiai, Yujiro Ando
  • Patent number: 4788564
    Abstract: A board recording apparatus in which a recording medium (1) in the form of an endless belt moves sequentially between an image formation station (6) and a charge elimination station (14). A charge elimination electrode (16) at the charge elimination station applied voltages via the residual electrically conductive toner (9) to eliminate charges which otherwise cause toner to adhere and produce smudges in subsequent displays.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: November 29, 1988
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toshihiko Ochiai
  • Patent number: 4597926
    Abstract: A method of manufacturing a radial flow turbine rotor is disclosed, which comprises the steps of injection molding a rotor body including a conical shaft and a plurality of blades formed on the periphery of the shaft and at an angle to the axis of the shaft from a ceramic material using a mold having parting lines corresponding to blade edges such that projections are formed on the blade edges, sintering the molding thus obtained, and grinding the edge surfaces of the blades facing a casing. The blades are thus provided with projections on their inlet and outlet edges which face a fluid passage.
    Type: Grant
    Filed: March 13, 1985
    Date of Patent: July 1, 1986
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Akio Ando, Toshihiko Ochiai, Masae Nakanishi, Shozo Kawasaki, Katsutoshi Nishida
  • Patent number: 4510218
    Abstract: A negative electrolyte for electrolyte circulation-type storage batteries has a composition basically comprising zinc bromide as an active material and this active material is mixed with specified amounts of quaternary ammonium bromides of heterocyclic compounds such as morpholine, pyridine and pyrrolidine or ammonia as a bromine complexing agent and a dendrite inhibitor with or without specified amounts of Sn.sup.2+ and Pb.sup.2+.
    Type: Grant
    Filed: November 1, 1983
    Date of Patent: April 9, 1985
    Assignee: Kabushiki Kaisha Meidensha
    Inventors: Yasuo Ando, Toshihiko Ochiai
  • Patent number: 4419971
    Abstract: A cylinder liner for use in an internal combustion engine which is formed of ceramic material having a density higher than 95% of theoretical value and a randomly directed and homogeneous structure. The ceramic liner is composed of silicon nitride, silicon carbide, an oxynitride such as silicon oxynitride and silicon aluminum oxynitride, silicon nitride-silicon carbide or aluminum nitride.
    Type: Grant
    Filed: November 23, 1982
    Date of Patent: December 13, 1983
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Kiyoshi Nakamura, Katsutoshi Nishida, Toshihiko Ochiai, Akio Ando, Syoji Okada
  • Patent number: 4385866
    Abstract: A curved blade rotor for a radial inflow turbo supercharger which is made of ceramic material and having a plurality of curved blades each with a curved outer edge. The surface roughness of the curved outer edge is 0.8S to 2S wherein "S" indicates surface roughness according to Japanese Industrial Standard B 0601.
    Type: Grant
    Filed: March 17, 1980
    Date of Patent: May 31, 1983
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Toshihiko Ochiai, Kiyoshi Nakamura, Katsutoshi Nishida, Masato Sakai
  • Patent number: 4359022
    Abstract: A valve for an internal combustion engine formed of ceramic material for resistance to corrosion, heat and wear. The valve may include a valve tip, a lock groove, a valve stem, a valve fillet, a valve face, a valve margin and a valve head. Certain portions of the valve, such as the valve tip, the lock groove and the valve stem may, alternatively, be formed of metal. The ceramic material includes, among other compositions, silicon nitride, silicon carbide, aluminum nitride, silicon oxynitride, silicon aluminum oxynitride and silicon nitride-silicon carbide.
    Type: Grant
    Filed: March 17, 1980
    Date of Patent: November 16, 1982
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Kiyoshi Nakamura, Masae Nakanishi, Syozo Kawasaki, Toshihiko Ochiai, Katsutoshi Nishida
  • Patent number: 4332909
    Abstract: A silicon nitride based sintered product produced by sintering a powder mixture consisting essentially of silicon nitride, at least one oxide of yttrium, scandium, cerium, lanthanum and the metals of lanthanide series and at least one metal or metal oxide of iron, nickel and cobalt.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: June 1, 1982
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Katsutoshi Nishida, Toshihiko Ochiai
  • Patent number: 4123199
    Abstract: A rotor-shaft assembly comprising a ceramic turbine rotor, a metal shaft and a metal connector disposed between the rotor and the shaft. The metal connector is fixed to the rotor by some suitable means and coupled with the metal shaft by mutual engagement of teeth provided at the ends of the connector and the shaft.
    Type: Grant
    Filed: March 25, 1977
    Date of Patent: October 31, 1978
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventors: Syogo Shimizu, Toshihiko Ochiai, Masato Sakai
  • Patent number: 3930875
    Abstract: A pump member for molten metal manufactured from a sintered mass including aluminium nitride as a major component and 0.1 to 10% by weight of at least one oxide selected from the group consisting of oxides of Group IIIA elements of the Periodic Table.
    Type: Grant
    Filed: April 24, 1973
    Date of Patent: January 6, 1976
    Assignee: Tokyo Shibaura Electric Co., Ltd.
    Inventors: Toshihiko Ochiai, Mitsutoshi Hirano, Hiroshi Inoue