Patents by Inventor Yoshio Ishida

Yoshio Ishida 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).

  • Publication number: 20240150934
    Abstract: A polysilicon rod has a diameter of 120 mm or more, the polysilicon rod having a lowest resistivity of 3300 ?cm or more and an RRG of 100% or less. A polysilicon rod has a diameter of 140 mm or more, the polysilicon rod having a lowest resistivity of 3300 ?cm or more and an RRG of 150% or less.
    Type: Application
    Filed: November 3, 2023
    Publication date: May 9, 2024
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Atsushi YOSHIDA, Naruhiro HOSHINO, Masahiko ISHIDA, Takeshi AOYAMA, Shigetoshi YAMAGISHI, Yoshio KANEKO
  • Patent number: 9000931
    Abstract: A noise processing apparatus measures a first potential difference signal, between a first electrode and a second electrode that is used as a reference electrode, and measures a second potential difference signal, between the second electrode and a third electrode that is arranged on the steering unit in the apparatus. The apparatus calculates the difference between the intensities of the first potential difference signal and the second potential difference signal calculated at the predetermined intervals. The apparatus corrects the first potential difference signal or the second potential difference signal by using the calculated difference such that the intensities of the first potential difference signal and the second potential difference signal are canceled out.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: April 7, 2015
    Assignees: Fujitsu Limited, The University of Tokyo
    Inventors: Hideki Tomimori, Ken Sasaki, Yasuhiko Nakano, Satoshi Sano, Yoshio Ishida
  • Publication number: 20130022209
    Abstract: A noise processing apparatus measures a first potential difference signal, between a first electrode and a second electrode that is used as a reference electrode, and measures a second potential difference signal, between the second electrode and a third electrode that is arranged on the steering unit in the apparatus. The apparatus calculates the difference between the intensities of the first potential difference signal and the second potential difference signal calculated at the predetermined intervals. The apparatus corrects the first potential difference signal or the second potential difference signal by using the calculated difference such that the intensities of the first potential difference signal and the second potential difference signal are canceled out.
    Type: Application
    Filed: May 30, 2012
    Publication date: January 24, 2013
    Applicants: The University of Tokyo, FUJITSU LIMITED
    Inventors: Hideki TOMIMORI, Ken Sasaki, Yasuhiko Nakano, Satoshi Sano, Yoshio Ishida
  • Patent number: 7506641
    Abstract: A first series circuit having an energy storage coil 21, a first diode 3, and a capacitor 6 connected between a direct current power supply E and a ground terminal GND is arranged. A second series circuit of a switching element 5 and an ignition coil 4 is connected to both ends of the capacitor 6. The switching element 5 of the ignition device configured as above is controlled so as to perform a plurality of ON/OFF operations in time of the ignition operation of the ignition plug 8 connected to the secondary side of the ignition coil 4. As a result, the capacitive discharge and the inductive discharge are alternately repeated at the ignition plug 8. According to the present invention, a multiple discharge type ignition device in which the number of components is reduced, and the power consumption is suppressed is realized.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: March 24, 2009
    Assignee: Diamond Electric Mfg. Co., Ltd.
    Inventor: Yoshio Ishida
  • Publication number: 20070062501
    Abstract: A first series circuit having an energy storage coil 21, a first diode 3, and a capacitor 6 connected between a direct current power supply E and a ground terminal GND is arranged. A second series circuit of a switching element 5 and an ignition coil 4 is connected to both ends of the capacitor 6. The switching element 5 of the ignition device configured as above is controlled so as to perform a plurality of ON/OFF operations in time of the ignition operation of the ignition plug 8 connected to the secondary side of the ignition coil 4. As a result, the capacitive discharge and the inductive discharge are alternately repeated at the ignition plug 8. According to the present invention, a multiple discharge type ignition device in which the number of components is reduced, and the power consumption is suppressed is realized.
    Type: Application
    Filed: September 19, 2006
    Publication date: March 22, 2007
    Inventor: Yoshio Ishida
  • Patent number: 6725910
    Abstract: A heat pipe comprising a flat container, and a member selected from a rod, a plate and a mesh, the member being fixedly arranged between narrow walls of the container so that space is provided in the inner circumference of the container both in the direction of width and length of the container.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: April 27, 2004
    Assignee: Diamond Electric Mfg. Co., Ltd.
    Inventors: Yoshio Ishida, Akimi Shutou, Takashi Doi
  • Patent number: 6508302
    Abstract: A heat pipe comprising a flat container, and a member selected from a rod, a plate and a mesh, the member being fixedly arranged between narrow walls of the container so that space is provided in the inner circumference of the container both in the direction of width and length of the container.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: January 21, 2003
    Assignee: Diamond Electric Mfg. Co. Ltd.
    Inventors: Yoshio Ishida, Akimi Shutou
  • Publication number: 20020179288
    Abstract: A heat pipe comprising a flat container, and a member selected from a rod, a plate and a mesh, the member being fixedly arranged between narrow walls of the container so that space is provided in the inner circumference of the container both in the direction of width and length of the container.
    Type: Application
    Filed: July 19, 2002
    Publication date: December 5, 2002
    Applicant: DIAMOND ELECTRIC MFG. CO., LTD.
    Inventors: Yoshio Ishida, Akimi Shutou, Takashi Doi
  • Patent number: 6408934
    Abstract: A cooling module is disclosed which comprises a plate, a flat heat pipe, a directional motor, and a fin structure, wherein at least a part of the heat pipe is embedded into the plate while being flush with plate, and the heat pipe is disposed close to a heat generating object and a coupling portion of the fin structure.
    Type: Grant
    Filed: May 26, 1999
    Date of Patent: June 25, 2002
    Assignee: Diamond Electric Mfg. Co., Ltd.
    Inventors: Yoshio Ishida, Akimi Shutou, Takao Terasaka
  • Publication number: 20010047859
    Abstract: A heat pipe comprising a flat container, and a member selected from a rod, a plate and a mesh, the member being fixedly arranged between narrow walls of the container so that space is provided in the inner circumference of the container both in the direction of width and length of the container.
    Type: Application
    Filed: December 4, 1998
    Publication date: December 6, 2001
    Inventors: YOSHIO ISHIDA, AKIMI SHUTOU
  • Patent number: 5835348
    Abstract: The present invention is to provide a heat sink used for a portable information processing apparatus, the casing of which has a recess in which an exchangeable arithmetic processor is accommodated. There is provided a heat receiving plate closely coming into contact with the arithmetic processor. The heat receiving plate includes a round hole portion arranged at one end. A heat pipe is inserted into the round hole portion. A fixing member is attached to the heat receiving plate at an outlet portion of the heat pipe arranged in the round hole portion. The heat receiving plate is fixed to the casing through the fixing member so that a hinge mechanism can be formed by the heat receiving plate and the heat pipe which is used as a fulcrum. At least a portion of the heat pipe is thermally connected with a radiating member.
    Type: Grant
    Filed: October 29, 1996
    Date of Patent: November 10, 1998
    Assignee: Diamond Electric Mft.
    Inventor: Yoshio Ishida
  • Patent number: 5588483
    Abstract: A heat radiating apparatus includes a metal pipe attached to at least one side of a metal plate, a heat pipe inserted into an internal hollow of the metal pipe, the hollow being filled with grease having high thermal conductivity, a sleeve seal provided at least one longitudinal end of the metal pipe for sealing the grease in such a way as to permit the heat pipe to freely rotate, and a heat receiving section through which a part of the heat pipe is in contact with a heating body.
    Type: Grant
    Filed: January 26, 1996
    Date of Patent: December 31, 1996
    Assignee: Diamond Electric Mfg. Co., Ltd.
    Inventor: Yoshio Ishida
  • Patent number: 5567986
    Abstract: A heat sink is provided wherein a heat receiving plate and at least one piece of heat radiating fin are stacked in the heat sink, and an interval between the heat receiving plate and fin is maintained by a number of bosses geometrically disposed on the heat radiating fin. The bottom of each boss is soldered onto the adjacent heat receiving plate or heat radiating fin. The heat sink therefore is provided with a plurality of conductive contacts between said fins and said heat receiving plate in the radial or transverse direction.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: October 22, 1996
    Assignee: Diamond Electric Mfg. Co., Ltd.
    Inventor: Yoshio Ishida
  • Patent number: 5535816
    Abstract: A heat sink comprising a heat receiving plate and at least one piece of heat radiating fin stacked on the heat receiving plate, wherein slits which penetrate the heat radiating fin from the upper to lower surface are formed on a flat plate surface of the heat radiating fin, and a plurality of fin protrusions are provided in a portion on the flat plate surface where the slits are not formed, and all the fin protrusions or a portion of the fin protrusions of the stacked heat radiating fin are disposed at different positions on the heat radiating fin so that an interval between the heat receiving plate and heat radiating fin, or an interval between the stacked heat radiating fins is maintained by the fin protrusions.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: July 16, 1996
    Assignee: Diamond Electroic Mfg. Co. Ltd.
    Inventor: Yoshio Ishida
  • Patent number: 5229438
    Abstract: A two-component, or two-part epoxy resin composition which adheres well to wet mortar and concrete is provided. One part comprising a non-cycloaliphatic epoxy resin, a reactive diluent in the form of an epoxy compound, a modifying resin selected from the group consisting of a coumarone-indene polymer resin, a dicyclopentadiene polymer resin, an acrylonitrile modified polyvinyl chloride resin, an amino terminated acrylonitrile-butadiene copolymer resin, and an epoxy terminated polybutadiene resin, a silane coupling agent having an epoxy or amino group, and a synthetic zeolite is combined, on use, with the other part comprising an amine curing agent selected from the group consisting of a cycloaliphatic polyamine, an aliphatic/aromatic polyamide, and an amine adduct.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: July 20, 1993
    Assignee: Mitsui Petrochemical Industries, Ltd.
    Inventors: Yoshio Ishida, Hiroshi Iizuka, Toru Tomoshige
  • Patent number: 4177402
    Abstract: A magnetron having permanent magnets sealed in the vacuum container, in which the permanent magnets and pole pieces associated therewith are supported with the inner wall of the vacuum container and holders provided thereon, and the pole pieces are projecting through the openings of holders into the interaction spaces which are defined between vanes in the vacuum container and a cathode, and the projecting portion of the pole piece is fixed to the opening of the holder by means of arc-welding or silver-alloy brazing.
    Type: Grant
    Filed: February 23, 1978
    Date of Patent: December 4, 1979
    Assignee: Hitachi, Ltd.
    Inventor: Yoshio Ishida
  • Patent number: 4175245
    Abstract: At least one permanent magnet and a pole piece having a projection is contained in an evacuated envelope formed by an anode cylinder and yokes on the opposite ends thereof. The permanent magnet and the pole piece is clamped between one yoke and a holder secured to the inner wall of the anode cylinder. The holder is provided with an opening a little smaller than the outer diameter of the projection and the projection is force-fitted into the opening to project into an interaction space defined between anode vanes and the cathode electrode.
    Type: Grant
    Filed: February 23, 1978
    Date of Patent: November 20, 1979
    Assignee: Hitachi, Ltd.
    Inventors: Yoshio Ishida, Masao Sakai, Mamoru Tsuzurahara, Ichiro Inamura, Tomokatsu Oguro
  • Patent number: 4169987
    Abstract: The magnetron tube is provided with two concentric supports each with one end connected to the opposite ends of the cathode electrode and two concentric cup shaped input terminals respectively connected to the other ends of the supports. Lead wires extending from a filter for preventing leakage of high frequency wave are welded to the edges of the cup shaped input terminals and clamped thereto at portions near the welded ends by clamping members.
    Type: Grant
    Filed: February 3, 1978
    Date of Patent: October 2, 1979
    Assignee: Hitachi, Ltd.
    Inventors: Tomokatsu Oguro, Yoshio Ishida, Mamoru Tsuzurahara, Satoshi Kobayashi
  • Patent number: 4166235
    Abstract: A magnetron comprising a cathode, an anode cylinder having a plurality of vanes disposed around the cathode for defining an interaction space between the cathode and the vanes, and a pair of permanent magnets disposed opposite to each other for producing a magnetic field in the interaction space. One of the permanent magnets is annular in shape, and this annular magnet is magnetized relative to the other magnet so that their same poles confront each other thereby reducing the size of the magnetron.
    Type: Grant
    Filed: October 13, 1977
    Date of Patent: August 28, 1979
    Assignee: Hitachi, Ltd.
    Inventors: Seizi Yamashita, Tunehiro Endo, Yoshio Ishida
  • Patent number: 3987333
    Abstract: In a magnetron comprising a cathode electrode, an anode cylinder including a plurality of vanes disposed about the cathode electrode for defining an interaction space, and a pair of permanent magnets contained in the anode cylinder for producing magnetic field in the interaction space, one permanent magnet is magnetized in the radial direction whereas the other is magnetized in the axial direction whereby the magnetic field distribution in the interaction space is made uniform.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: October 19, 1976
    Assignee: Hitachi, Ltd.
    Inventors: Kusuo Nakada, Yoshio Ishida