Patents by Inventor Yoshihiro Yamaguchi

Yoshihiro Yamaguchi 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: 20150255370
    Abstract: A semiconductor device with improved heat radiation and improved insulation performance. The semiconductor device includes a semiconductor element, a lead frame bonded on one surface to the semiconductor element, a first insulating layer disposed on the other surface of the lead frame, and a metal base plate connected to the lead frame with the first insulating layer interposed between them, wherein an outer peripheral portion of the first insulating layer is inside an outer peripheral portion of the metal base plate, and the outer peripheral portion of the first insulating layer is covered with a second insulating layer having higher moisture resistance and higher insulation performance than the first insulating layer, the outer peripheral portion including an electric field concentrated point in an outer peripheral portion of the lead frame.
    Type: Application
    Filed: December 20, 2013
    Publication date: September 10, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroki Shiota, Atsushi Yamatake, Kenichi Suga, Yoshihiro Yamaguchi, Tetsuya Ueda
  • Publication number: 20150237718
    Abstract: A circuit board having a power semiconductor element mounted thereon includes an insulating plate, a bonding pattern, a circuit pattern, and a pad plate. The insulating plate is made of aluminum nitride ceramic and has a first surface and a second surface opposite to the first surface. The bonding pattern is bonded to the first surface of the insulating plate and made of any of aluminum and aluminum alloy. The circuit pattern is bonded to the second surface of the insulating plate and made of any of aluminum and aluminum alloy. The pad plate is bonded to the circuit pattern, only partially covers the circuit pattern, and is made of any of copper and copper alloy.
    Type: Application
    Filed: November 7, 2014
    Publication date: August 20, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoshihiro YAMAGUCHI, Tatsunori YANAGIMOTO, Hidetoshi ISHIBASHI
  • Publication number: 20150234861
    Abstract: An image processing system may include an imaging device for capturing an image and an image processing apparatus for processing the image. The imaging device may include an imaging unit for capturing the image, a first recording unit for recording information relating to the image, the information being associated with the image, and a first transmission control unit for controlling transmission of the image to the image processing apparatus. The image processing apparatus may include a reception control unit for controlling reception of the image transmitted from the imaging device, a feature extracting unit for extracting a feature of the received image, a second recording unit for recording the feature, extracted from the image, the feature being associated with the image, and a second transmission control unit for controlling transmission of the feature to the imaging device.
    Type: Application
    Filed: April 24, 2015
    Publication date: August 20, 2015
    Applicant: SONY CORPORATION
    Inventors: Tamaki Kojima, Yoshihiro Yamaguchi, Mikio Sakemoto, Katsuhiro Takematsu
  • Patent number: 9105716
    Abstract: A semiconductor device includes: a first semiconductor layer of a first conductivity type; a second semiconductor layer of the first conductivity type provided on a main surface of the first semiconductor layer and having a lower impurity concentration than that of the first semiconductor layer; a third semiconductor layer of a second conductivity type provided on the second semiconductor layer; a fourth semiconductor layer of the first conductivity type selectively provided on the third semiconductor layer; a gate electrode provided in a trench passing through the third semiconductor layer and reaching the second semiconductor layer; a first main electrode contacting the fourth semiconductor layer and contacting the third semiconductor layer through a contact groove provided to pass through the fourth semiconductor layer between the contiguous gate electrodes; a second main electrode provided on an opposite surface to the main surface of the first semiconductor layer; and a fifth semiconductor layer of the s
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: August 11, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Miwako Akiyama, Yusuke Kawaguchi, Yoshihiro Yamaguchi
  • Publication number: 20150214798
    Abstract: A permanent magnet dynamoelectric machine of surface magnet type is configured to have a flanged U-shaped magnet presser made of a conductive metal, and to fix the magnet presser to a rotor core using a fixing member so as to fix a part of an outer periphery of a permanent magnet in a radial direction with a flange of the magnet presser. This ensures the permanent magnet dynamoelectric machine of surface magnet type to be adaptable to large-torque, high-speed and large-capacity.
    Type: Application
    Filed: January 15, 2015
    Publication date: July 30, 2015
    Inventors: Fumio TAJIMA, Yoshihiro YAMAGUCHI, Kazuhiro HASEGAWA, Koji CHOSA, Katsumi SHIBATA
  • Patent number: 9093277
    Abstract: The present invention includes a plate electrode to be a plate-shaped electrode member, an epoxy sheet serving as an integrated insulating sheet and provided on the plate electrode, a double printed board serving as a control board and provided on the epoxy sheet, and a board integrated electrode in which the plate electrode and the double printed board are formed integrally by the epoxy sheet.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: July 28, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yoshihiro Yamaguchi
  • Patent number: 9088193
    Abstract: A motor control device which can determine a magnetic pole position for a magnetic pole position detector included in a permanent magnet motor in which the reluctance torque proportion is larger than the magnet torque proportion is provided. In a permanent magnet synchronous motor having multi-phase windings of N axes (N?2), the windings of optionally selected K axes (K?N) are DC excited using corresponding independent power supplies.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: July 21, 2015
    Assignees: Aida Engineering, Ltd., Hitachi Industrial Equipment Systems Co., Ltd.
    Inventors: Yoshihiro Yamaguchi, Hiroshi Nagase, Fumio Tajima, Masataka Yahara, Yukinari Fujisawa
  • Publication number: 20150171682
    Abstract: The purpose of the present invention is to improve torque in a composite torque rotating electric machine which uses permanent magnets having a low residual magnetic flux density such as ferrite magnets. This composite torque rotating electric machine is characterized by being provided with: a stator comprising armature windings arranged at a fixed interval at multiple positions on the inner periphery; a rotor which has a permanent magnet in a cylindrical core comprising laminated magnetic steel sheets and which is arranged inside of the stator; and magnetic flux blocking units which are provided across the circumferential direction on the outer periphery of the rotor and which block the closed loop magnetic flux generated around the stator windings. The magnetic flux blocking units are provided with multiple permanent magnets, and a non-magnetic body disposed between said permanent magnets. Further, the non-magnetic body is an air gap.
    Type: Application
    Filed: May 28, 2012
    Publication date: June 18, 2015
    Applicant: AIDA ENGINEERING, LTD.
    Inventors: Yukinari Fujisawa, Masataka Yahara, Hiroshi Nagase, Fumio Tajima, Yoshihiro Yamaguchi
  • Publication number: 20150158682
    Abstract: An paper stacker includes a side fence and a lift plate. The side fence extends in a stacking direction and is configured to regulate a position in a width direction of paper. The lift plate is capable of moving the paper to a paper feed point. The side fence includes a main body, a swell segment swelling from the main body toward an edge of the paper below the paper feed point, and an urging segment including an urging surface portion above the swell segment. The urging surface portion is capable of moving toward the edge of the paper to urge the edge of the paper at the paper feed point.
    Type: Application
    Filed: December 3, 2014
    Publication date: June 11, 2015
    Applicant: KYOCERA DOCUMENT SOLUTIONS INC.
    Inventor: Yoshihiro YAMAGUCHI
  • Patent number: 9047287
    Abstract: An image processing system may include an imaging device for capturing an image and an image processing apparatus for processing the image. The imaging device may include an imaging unit for capturing the image, a first recording unit for recording information relating to the image, the information being associated with the image, and a first transmission control unit for controlling transmission of the image to the image processing apparatus. The image processing apparatus may include a reception control unit for controlling reception of the image transmitted from the imaging device, a feature extracting unit for extracting a feature of the received image, a second recording unit for recording the feature, extracted from the image, the feature being associated with the image, and a second transmission control unit for controlling transmission of the feature to the imaging device.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: June 2, 2015
    Assignee: Sony Corporation
    Inventors: Tamaki Kojima, Yoshihiro Yamaguchi, Mikio Sakemoto, Katsuhiro Takematsu
  • Patent number: 9029994
    Abstract: A semiconductor device includes a base plate having one main surface joined to an insulating substrate on which a semiconductor chip and the like are mounted and a transfer mold resin which is so provided as to cover the one main surface of the base plate, the insulating substrate, the semiconductor chip, and the like and expose the other main surface of the base plate. The coefficient of linear expansion of the base plate is lower than that of copper and the coefficient of linear expansion of the transfer mold resin is not higher than 16 ppm/° C. The transfer mold resin has such scooped shapes as to expose opposed short-side centers and the vicinity of the base plate, respectively. The base plate has mounting holes in portions exposed by the scooped shapes of the transfer mold resin.
    Type: Grant
    Filed: February 27, 2012
    Date of Patent: May 12, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tetsuya Ueda, Yoshihiro Yamaguchi
  • Patent number: 9024228
    Abstract: In order to increase the flow rate of coolant liquid supplied to the nozzle (88) of a plasma torch (10) and to extend the life of the plasma torch (10), within the plasma torch (10), an electrode coolant liquid passage (60, 84, 85, 86, and 64) which supplies coolant liquid to an electrode (80), and a nozzle coolant liquid passage (56, 70, 92, 72 and 68) which supplies coolant liquid to the nozzle (88), are provided separately as independent coolant liquid passages which extend in parallel, and which are mutually electrically insulated from one another. Moreover, the flow rate of coolant liquid in the nozzle coolant liquid passage is greater than the flow rate of coolant liquid in the electrode coolant liquid passage.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: May 5, 2015
    Assignees: Komatsu Ltd., Komatsu Industries Corporation
    Inventors: Yoshihiro Yamaguchi, Shigeo Morimoto, Mikio Minonishi
  • Publication number: 20150115523
    Abstract: A sheet stacking device includes sheet stacking portion, electric motor, current detecting portion, abnormality determining portion, and updating portion. The sheet stacking portion is supported to be movable in up-down direction and configured to stack sheets thereon. The electric motor outputs, to the sheet stacking portion, a driving force for moving the sheet stacking portion in up-down direction. The current detecting portion detects a current value of the electric motor. The abnormality determining portion determines that the sheet stacking portion is in abnormal state when the detected current value is greater than a predetermined threshold. The updating portion updates the threshold based on the current value that was detected by the current detecting portion while the sheet stacking portion with a predetermined set amount of sheets stacked thereon was being moved by the driving force received from the electric motor.
    Type: Application
    Filed: October 27, 2014
    Publication date: April 30, 2015
    Inventors: Yoshihiro Yamaguchi, Katsuhiro Yoshiuchi
  • Publication number: 20150108865
    Abstract: A composite torque rotating electric machine includes a stator having armature windings arranged at multiple positions in a circumferential direction, a rotor having a cylindrical core, first permanent magnets arranged on axes (d) and in the circumferential direction on the outer periphery of the rotor, second permanent magnets arranged on axes (d) on the inner periphery side of the rotor across from the permanent magnets on the outer circumference side, third permanent magnets on axes (q) and extending in the longitudinally and radially of the rotor, and air gaps on the outer periphery side of the third permanent magnets and intermediate in the circumferential direction of the first permanent magnets. The radial distance between the first and second magnets is greater than the circumferential distance between the first permanent magnets and the air gaps. A rectifier having multiple slits is disposed between the first permanent magnets and the air gaps.
    Type: Application
    Filed: May 28, 2012
    Publication date: April 23, 2015
    Applicant: AIDA ENGINEERING, LTD.
    Inventors: Yukinari Fujisawa, Masataka Yahara, Hiroshi Nagase, Fumio Tajima, Yoshihiro Yamaguchi
  • Patent number: 9000321
    Abstract: A thermal cutter for cutting with heat a board mounted upon a table having an internal space includes a plurality of walls and a sound absorbent material. The walls are disposed in the internal space of the table to partition a plurality of exhaust chambers with each of the exhaust chambers having an aperture that opens towards a side on which the board is mounted. The sound absorbent material is provided to at least a portion of at least one of the walls, the sound absorbent material being removably coupled to the table.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: April 7, 2015
    Assignee: Komatsu Industries Corporation
    Inventors: Yoshihiro Yamaguchi, Satoshi Ohnishi
  • Publication number: 20150092997
    Abstract: There are provided a person recognition apparatus, method, and a non-transitory computer readable recording medium which can perform accurate person recognition according to a time dependent face change. A sorting section sorts a plurality of images by shooting date and time. A group division section divides the plurality of images into a plurality of groups according to a predetermined shooting date and time range. A face recognition section extracts feature amounts by face recognition for each group. An in-group person determination section determines a person having a similarity of a predetermined reference threshold value or higher as the same person and integrates the feature amounts relevant to the person for each group. An inter-group person recognition section recognizes persons having a similarity of a predetermined recognition threshold value or higher as the same person between two groups based on the feature amounts integrated in adjacent groups.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 2, 2015
    Inventor: Yoshihiro YAMAGUCHI
  • Publication number: 20150091406
    Abstract: A permanent magnet motor includes a P-pole-implanted permanent magnet rotator containing a ferrite magnet in a laminated silicon steel sheet, wherein, at one pole, a U-shaped permanent magnet comprising three parts, and, at the outer periphery of the U-shaped magnet, one outer-periphery permanent magnet disposed longitudinally in the peripheral direction are provided to generate permanent magnet torque. At one pole, the permanent magnet rotator generates reluctance torque using two salient poles formed between the U-shaped permanent magnet and the outer-periphery permanent magnet. One central salient pole is formed between the adjacent poles. A stator comprises an M-phase stator winding that is a distributed winding, and a stator core having Ns slots. The ratio of Ns/P/M is a common fraction. When the width of the center salient pole is set to ?cp and the slot pitch of the stator core is set to ?s, ?cp is smaller than ?s.
    Type: Application
    Filed: March 30, 2012
    Publication date: April 2, 2015
    Applicant: AIDA ENGINEERING, LTD.
    Inventors: Fumio Tajima, Yoshihiro Yamaguchi, Hiroshi Nagase, Masataka Yahara, Yukinari Fujisawa
  • Patent number: 8987912
    Abstract: A semiconductor device includes a substrate having a conductor; a semiconductor chip disposed on the substrate and electrically connected to the conductor; a tubular electrode having one end electrically connected to the conductor; and a sealing resin sealing the substrate, the semiconductor chip and the electrode. The electrode is configured to be extendable and contractible in the stacking direction in which the substrate and the semiconductor chip are stacked in the state before sealing of the sealing resin. The edge of the other end of the electrode is exposed from the sealing resin. The electrode has a hollow space opened at the edge of the other end. Therefore, a semiconductor device reduced in size and a method of manufacturing this semiconductor device can be provided.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: March 24, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yoshihiro Yamaguchi
  • Patent number: 8976193
    Abstract: An information processing apparatus that executes information display processing is disclosed. The apparatus includes: a display unit that executes information display; and a data processing unit that executes a control of the information display of the display unit and data processing based on a user input. The data processing unit displays an image browsing screen, which corresponds to image data stored in a storage unit, on the display unit and executes display of a map at the position, which corresponds to position information included in attribute information of a selected image, on the basis of a user's input of image selection information and map display request.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: March 10, 2015
    Assignee: Sony Corporation
    Inventors: Hiroki Takakura, Shiro Miyagi, Yoshihiro Yamaguchi
  • Publication number: 20150054302
    Abstract: In an apparatus for reducing vehicle aerodynamic drag equipped with an air jet device installed at upper and lower positions of a rear of a vehicle and each having a vibrator connected to a diaphragm disposed in an enclosed region and adapted to be driven based on a drive signal to vibrate the diaphragm to jet/suck air through an orifice formed in the region, a vehicle traveling condition is detected, the drive signals for the respective air jet devices are determined independently of each other based on the detected traveling condition, and the vibrators of the respective air jet devices are driven based on the determined drive signals to reduce aerodynamic drag acting on the vehicle.
    Type: Application
    Filed: August 19, 2014
    Publication date: February 26, 2015
    Inventors: Yoshihiro Yamaguchi, Shinya Uno, Haruo Aoki