Patents by Inventor Tsuyoshi Yamamoto

Tsuyoshi Yamamoto 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).

  • INTAKE PORT STRUCTURE FOR INTERNAL COMBUSTION ENGINE
    Publication number: 20190383207
    Abstract: In an engine (1), when an intake valve (16) opens, a downstream end portion (61) of a first intake port (6) extends to direct to between a shade back (162a) positioned on a cylinder axis (C) side with respect to a valve stem (161) and a ceiling surface (51) facing the shade back (162a). As viewed in a section perpendicular to a direction perpendicular to an intake air flow direction, a second intake port side inner wall surface (61a) at the downstream end portion (61) of the first intake port (6) curves apart from a second intake port (7) in a direction from an exhaust side to an intake side as compared to the shape of an opposite second intake port side inner wall surface (61b) mirror-reversed to a second intake port (7) side.
    Type: Application
    Filed: March 3, 2017
    Publication date: December 19, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yasushi NAKAHARA, Yohei SUZUKI, Tsuyoshi YAMAMOTO, Michiharu KAWANO, Yuya HONDA, Kento ONISHI
  • INTAKE PORT STRUCTURE FOR INTERNAL COMBUSTION ENGINE
    Publication number: 20190383208
    Abstract: In an engine (1), an ignition plug (22) is arranged between a first intake port (6) and a second intake port (7). In a case where a downstream end portion (71) of the second intake port (7) is divided into a first intake port (6) side and an opposite first intake port (6) side, an inner wall surface (71a) of an opposite first intake port (6) side portion extends in a direction toward the first intake port (6) as extending from an upstream side to a downstream side of the second intake port (7).
    Type: Application
    Filed: March 3, 2017
    Publication date: December 19, 2019
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yasushi NAKAHARA, Yohei SUZUKI, Tsuyoshi YAMAMOTO, Michiharu KAWANO, Yuya HONDA, Kento ONISHI
  • SEMICONDUCTOR DEVICE
    Publication number: 20190296149
    Abstract: In a semiconductor device, a trench is continuously connected to reach a main cell region and a sense cell region, and a shield electrode and a gate electrode layer are continuously connected to reach the main cell region and the sense cell region within the trench. The shield electrode extends to a side of the main cell region away from the sense cell region on one end side of the trench in a longitudinal direction to be electrically connected to an upper electrode. The gate electrode layer extends to a side of the main cell region away from the sense cell region on the other end side of the trench in the longitudinal direction to be electrically connected to a gate liner.
    Type: Application
    Filed: June 12, 2019
    Publication date: September 26, 2019
    Inventors: Tsuyoshi YAMAMOTO, Kenta GODA, Shunsuke HARADA, Yoshiaki NAKAYAMA
  • WAVEGUIDE SHEET AND PHOTOELECTRIC CONVERSION DEVICE
    Publication number: 20190293880
    Abstract: A waveguide sheet captures incident light and waveguides the incident light in a direction intersecting with an incident direction. The waveguide sheet includes a diffraction grating layer that changes a traveling direction of the incident light and a plurality of first light-transmissive pairs. Each of the first light-transmissive pairs includes a first light-transmissive layer having a shape with first concave streaks and first convex streaks being repeatedly arranged in a first direction that is a direction intersecting with the incident direction, and a second light-transmissive layer laminated on the first light-transmissive layer.
    Type: Application
    Filed: June 11, 2019
    Publication date: September 26, 2019
    Inventors: Seiji NISHIWAKI, Tohru NAKAGAWA, Tsuyoshi YAMAMOTO
  • Cam journal lubricant supply mechanism for engine
    Patent number: 10400643
    Abstract: An oil supply path passes through members separate from a cylinder head (4) to supply a lubricant to bearings (73, 74) of camshaft journals. The oil supply path includes an oil supply passage (66) for the camshaft above the camshaft (19, 20), a connection passage (64) for the camshaft between the oil supply passage for the camshaft and an internal passage (61, 62) in the cylinder head (4), and branch oil passages (68) for the camshaft journals. Each branch oil passage branches off from the oil supply passage for the camshaft, and is connected to one of the bearings (73, 74) from above. Each of the branch passages includes a throttle (168) with a smaller cross-sectional flow area than the oil supply passage for the camshaft.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: September 3, 2019
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Takashi Kashiwabara, Tsuyoshi Yamamoto, Yasushi Nakahara, Kouichi Shimizu
  • Solid electrolytic capacitor
    Patent number: 10340092
    Abstract: A solid electrolytic capacitor that includes a capacitor element including an anode portion having a metal layer, a dielectric layer, and a cathode portion having a solid electrolyte layer and a current collector layer; a leading conductor layer; an insulating resin body covering the capacitor element and the leading conductor layer, the insulating resin body having a first end surface and a second end surface opposite to each other; a first external electrode; and a second external electrode. The first external electrode has at least one plating layer on the first end surface, and is connected to the leading conductor layer at the first end surface. The second external electrode has at least one plating layer on the second end surface, and is connected to the metal layer at the second end surface.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: July 2, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hiroyuki Demizu, Kenichi Oshiumi, Tomohiro Suzuki, Shinya Yoshida, Koji Fujimoto, Tadahisa Sano, Tsuyoshi Yamamoto, Yoshinori Ueda, Shinji Otani
  • THERMAL PRINT HEAD AND THERMAL PRINTER
    Publication number: 20190193418
    Abstract: According to one embodiment, a thermal print head includes a heat sink, a head substrate having a plurality of heat generating elements placed on the heat sink and disposed in a primary scanning direction, a circuit board placed on the heat sink so as to be adjacent to the head substrate in an auxiliary scanning direction and provided with a connection circuit, and a control element electrically connected to the heat generating element via a first bonding wire and electrically connected to the connection circuit via a second bonding wire, wherein a plurality of first bonding wires is disposed in parallel in the primary scanning direction, and among the first bonding wires, the first bonding wire having a length of at least 2 mm or more is a metal wire having a Young's modulus greater than that of gold.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 27, 2019
    Applicant: TOSHIBA HOKUTO ELECTRONICS CORPORATION
    Inventors: Megumi YAMAUCHI, Seiichi NORO, Masakatsu DOI, Yoshihide ABE, Tomonori SUZUKI, Yuuki KOMORI, Tsuyoshi YAMAMOTO
  • THERMAL PRINT HEAD AND THERMAL PRINTER
    Publication number: 20190193417
    Abstract: According to one embodiment, a thermal print head includes a heat sink; a head substrate placed on the heat sink and having a plurality of heat generating elements arranged in a primary scanning direction; a circuit board placed on the heat sink so as to be adjacent to the head substrate in an auxiliary scanning direction and provided with a connection circuit; and a control element electrically connected to the heat generating element via a first bonding wire and electrically connected to the connection circuit via a second bonding wire, in which at least one of the first bonding wire and the second bonding wire includes any of a copper wire, a copper alloy wire, and a wire mainly made of copper and coated with a metal different from copper.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 27, 2019
    Applicant: TOSHIBA HOKUTO ELECTRONICS CORPORATION
    Inventors: Megumi Yamauchi, Seiichi Noro, Masakatsu Doi, Tsuyoshi Yamamoto, Yoshihide Abe, Tomonori Suzuki, Yuuki Komori
  • Tunable laser device
    Patent number: 10312663
    Abstract: A apparatus includes a tunable laser configured to include a tunable filter and a mirror; a first optical splitter provided between the tunable filter and the mirror, the first optical splitter including a first port and a second port on a tunable filter side and a third port and a fourth port on a mirror side, in which the tunable filter is coupled to the first port and the mirror is coupled to the third port, respectively; a first optical waveguide coupled to the second port; a second optical waveguide coupled to the fourth port; and an optical coupler with which the first optical waveguide and the second optical waveguide are combined.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: June 4, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Kazumasa Takabayashi, Suguru Akiyama, Tsuyoshi Yamamoto
  • DISCHARGING APPARATUS
    Publication number: 20190084300
    Abstract: A discharging apparatus includes: a discharging unit that includes a liquid chamber which stores a liquid intermittently supplied from a liquid supply source and a nozzle which discharges the liquid stored in the liquid chamber; a pressure detection unit that detects a pressure of the liquid supplied to the liquid chamber; and a control unit that controls the discharging unit based on a detection result from the pressure detection unit, in which the control unit limits liquid discharging by the discharging unit in a case where the pressure of the liquid supplied to the liquid chamber does not fall within an allowable pressure range.
    Type: Application
    Filed: August 17, 2018
    Publication date: March 21, 2019
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Takashi Machida, Tsuyoshi Yamamoto
  • Power generation system
    Patent number: 10138762
    Abstract: A power generation system in which the combustion heat of hydrocarbon gas is used to heat the steam for power generation; at the same time, the exhaust heat thereof is used to dry and thy-distill low rank coal. The power generation system includes: a dry distillation step for dry-distilling low rank coal of high moisture content; a cooling step for cooling the fixed carbon obtained in the dry distillation step; a combustion step in which hydrocarbon gas obtained in the dry distillation step is used as the main fuel; and a power generation step in which there are provided a power generator moving a steam turbine by main steam generated in the combustion step and a condenser.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: November 27, 2018
    Assignee: KYUSHU ELECTRIC POWER CO., INC.
    Inventors: Tatsuro Harada, Seiichiro Matsuda, Isao Mochida, Jun-ichiro Hayashi, Yohsuke Matsushita, Tsuyoshi Yamamoto
  • Organic light-emitting panel and organic light-emitting device with optimized bank profile
    Patent number: 10109690
    Abstract: An object is to provide an organic light-emitting panel and an organic light-emitting device capable of reducing ink repellence at portions of banks intersecting an insulating layer. Light-emitting units of the organic light-emitting panel are separated by the insulating layer and the banks. The insulating layer is disposed between first electrode units that are adjacent in a first direction, and the banks are disposed between first electrode units that are adjacent in a second direction. Portions of the banks that intersect with the insulating layer extend over the insulating layer in the first direction. Each of the portions of the banks over the insulating layer, in lateral cross-section, have a surface where an inclination angle ?1 and an inclination angle ?2 between the surface and a surface of the insulating layer satisfy ?1>20° and ?2>20°.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: October 23, 2018
    Assignee: JOLED INC.
    Inventors: Nobuto Hosono, Tsuyoshi Yamamoto
  • CAM JOURNAL LUBRICANT SUPPLY MECHANISM FOR ENGINE
    Publication number: 20180274407
    Abstract: An oil supply path passes through members separate from a cylinder head (4) to supply a lubricant to bearings (73, 74) of camshaft journals. The oil supply path includes an oil supply passage (66) for the camshaft above the camshaft (19, 20), a connection passage (64) for the camshaft between the oil supply passage for the camshaft and an internal passage (61, 62) in the cylinder head (4), and branch oil passages (68) for the camshaft journals. Each branch oil passage branches off from the oil supply passage for the camshaft, and is connected to one of the bearings (73, 74) from above. Each of the branch passages includes a throttle (168) with a smaller cross-sectional flow area than the oil supply passage for the camshaft.
    Type: Application
    Filed: March 14, 2017
    Publication date: September 27, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takashi KASHIWABARA, Tsuyoshi YAMAMOTO, Yasushi NAKAHARA, Kouichi SHIMIZU
  • TUNABLE LASER DEVICE
    Publication number: 20180226767
    Abstract: A apparatus includes a tunable laser configured to include a tunable filter and a mirror; a first optical splitter provided between the tunable filter and the mirror, the first optical splitter including a first port and a second port on a tunable filter side and a third port and a fourth port on a mirror side, in which the tunable filter is coupled to the first port and the mirror is coupled to the third port, respectively; a first optical waveguide coupled to the second port; a second optical waveguide coupled to the fourth port; and an optical coupler with which the first optical waveguide and the second optical waveguide are combined.
    Type: Application
    Filed: February 2, 2018
    Publication date: August 9, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Kazumasa Takabayashi, Suguru Akiyama, Tsuyoshi Yamamoto
  • Method of manufacturing ceramic sintered body and ceramic sintered body
    Patent number: 10040116
    Abstract: There is provided a manufacturing method including: forming a molded body element with a molding material containing a ceramic powder and a binder; forming a ceramic molded body by disposing at least one molded body element in a mold and then injecting a molding material containing a ceramic powder and a binder into the mold and graft molding a graft molded body element to the molded body element; and forming a ceramic sintered body by degreasing and sintering the ceramic molded body. A graft connecting surface of the molded body element to which the graft molded body element is graft molded is formed so as to have a surface roughness of 2 ?m or more in terms of Ra.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: August 7, 2018
    Assignee: HITACHI METALS, LTD.
    Inventors: Hideko Fukushima, Masayoshi Date, Tsuyoshi Yamamoto, Shuhei Iwagaki
  • Integrated semiconductor optical element and manufacturing method for same
    Patent number: 10027088
    Abstract: The present invention relates to an optical semiconductor integrated element and manufacturing method for same solves difficulty in element manufacture, and reduces optical transmission loss. The present invention is provided with a stripe-shaped waveguide configured from a multilayer structure wherein at least a first conductivity-type lower cladding layer, a waveguide core layer, and an upper cladding layer are layered, and the upper cladding layer is formed using a second conductivity-type upper cladding layer, and an i-type upper cladding layer, which has a bent portion by being shifted in the perpendicular direction with respect to the main extending direction of the waveguide.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: July 17, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Kazumasa Takabayashi, Tsuyoshi Yamamoto
  • Internal combustion engine
    Patent number: 10012134
    Abstract: Injection of the fuel by the injector 43 creates a gas flow in the combustion chamber. The gas expands in a radial fashion from an axis of a cylinder toward a radial outside of the cylinder, and then flows from the radial outside along the cylinder head bottom face 221 toward the axis of the cylinder. The spark plug 41 has a gap positioned away from the axis of the cylinder toward the radial outside of the cylinder at a predetermined distance, and placed radially inwardly from a position opposite a rim of an opening of the cavity 242. A side electrode extends to be oriented in a direction perpendicular to the flow of the gas along the cylinder head bottom face. The gap has a center positioned near the cylinder head bottom face, and closer to an interior of a combustion chamber than to the cylinder head bottom face.
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: July 3, 2018
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Mitsunori Wasada, Tsuyoshi Yamamoto, Yasushi Nakahara, Takashi Youso, Hiroaki Abe, Takaaki Nagano, Atsushi Inoue, Kazuhiro Nagatsu, Takashi Kaminaga, Tatsuya Fujikawa
  • CEMENTED CARBIDE AND CUTTING TOOL
    Publication number: 20180169766
    Abstract: Provided are a cemented carbide having excellent plastic deformation resistance and a cutting tool in which the cemented carbide is used as a substrate. A cemented carbide includes a hard phase containing tungsten carbide particles and a binder phase containing, as a main component, an iron-group element, wherein the formula B/A?0.05 is satisfied, where A represents the number of the tungsten carbide particles, and B represents the number of tungsten carbide particles whose number of contact points with other tungsten carbide particles is 1 or less. Preferably, the iron-group element includes cobalt, and the cobalt content in the cemented carbide is 8% by mass or more. Preferably, the tungsten carbide particles have an average particle diameter of 3 ?m or more.
    Type: Application
    Filed: December 15, 2015
    Publication date: June 21, 2018
    Inventors: Tsuyoshi Yamamoto, Michiko Matsukawa, Yasuki Kido, Keiichi Tsuda
  • Laser and method of controlling laser
    Patent number: 9966724
    Abstract: A laser includes first through fourth gain media, first through fifth wavelength selective filters, and first through fourth wavelength selective mirrors. The first through fourth gain media emit laser beams of different wavelengths. Each of the first through fifth wavelength selective filters includes first through fourth input/output ports. The fifth wavelength selective filter selects light of periodic wavelengths. The first through fourth wavelength selective filters have their respective first input/output ports connected to the first through fourth gain media, respectively, have their respective fourth input/output ports connected to the first through fourth wavelength selective mirrors, respectively, and have their respective second input/output ports connected to the first through fourth input/output ports, respectively, of the fifth wavelength selective filter.
    Type: Grant
    Filed: March 1, 2017
    Date of Patent: May 8, 2018
    Assignee: FUJITSU LIMITED
    Inventors: Kazumasa Takabayashi, Tsuyoshi Yamamoto
  • Fixed carbon production device
    Patent number: 9963639
    Abstract: A fixed carbon production device is provided with: a quench chamber for collecting fixed carbon; a dry distillation furnace which is erected and fixed in the quench chamber and into which raw material coal is fed; a dry distillation unit which is polygonal in horizontal cross-section and is partitioned by a separating wall which partitions the inside of the dry distillation furnace in the vertical direction; a dry distillation mini-furnace which is polygonal in horizontal cross-section and which is partitioned by a partition which partitions the inside of the dry distillation unit in the vertical direction; a pipe heating means which is arranged on the separating wall of the dry distillation unit and the partition of the dry distillation mini-furnace and which dry-distills the raw material coal; and a collection path for collecting fixed carbon collected in the quench chamber.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: May 8, 2018
    Assignee: KYUSHU ELECTRIC POWER CO., INC.
    Inventors: Tatsuro Harada, Seiichiro Matsuda, Isao Mochida, Jun-ichiro Hayashi, Yohsuke Matsushita, Tsuyoshi Yamamoto