Patents by Inventor Yoshitaka Watanabe

Yoshitaka Watanabe 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: 11145615
    Abstract: A lead-free solder has a heat resistance temperature which is high and a thermal conductive property which is not changed in a high temperature range. A semiconductor device includes a solder material containing more than 5.0% by mass and 10.0% by mass or less of Sb and 2.0 to 4.0% by mass of Ag, and the remainder consisting of Sn and inevitable impurities. A bonding layer including the solder material, is formed between a semiconductor element and a substrate electrode or a lead frame.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: October 12, 2021
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventors: Hirohiko Watanabe, Shunsuke Saito, Yoshitaka Nishimura, Fumihiko Momose
  • Patent number: 11143100
    Abstract: To provide a tensioner that has a simple structure and is easy to assemble, and is configured to smoothly relieve pressure during oil release with reduced flow resistance so that the oil pressure in an oil pressure chamber is kept stable in a favorable manner. A relief valve unit includes a cap member that fits with a seat member to retain a stopper member inside the seat member. An external relief hole, which causes a relief-side space in a plunger hole to communicate with the outside of a plunger, opens radially in an outer circumferential surface of the plunger.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: October 12, 2021
    Assignee: TSUBAKIMOTO CHAIN CO.
    Inventors: Yoshitaka Iwasaki, Masanori Watanabe, Osamu Yoshida, Yuji Kurematsu, Yuichiro Ishikawa
  • Publication number: 20210310364
    Abstract: A turbine wheel that retains a fixation wire to inhibit the movement of turbine rotor blades along mating grooves includes: multiple tab sections that form housing sections that house part of the fixation wire; and a wire retention pin to retain the fixation wire in the housing sections. The tab section has a pin slot extending from the radially inner end toward the radially outward side. The wire retention pin has a first pin section having a width smaller than the pin slot and a second pin section having a width larger than the pin slot. The first pin section has multiple divided pieces. The wire retention pin is arranged such that the first pin section is positioned in the pin slot and the second pin section is positioned in the housing section, and is fixed to the tab section with the divided pieces bent outward.
    Type: Application
    Filed: January 28, 2021
    Publication date: October 7, 2021
    Inventors: Yoshiki SAKAMOTO, Yasuyuki WATANABE, Yoshitaka SATO
  • Patent number: 11137264
    Abstract: A display system includes: a display that displays an image; and a display controller that causes the display to display a first image resembling roads around a vehicle and a second image resembling a recommended lane determined on the basis of a route to a destination set by the vehicle among the roads around the vehicle. The display controller causes the display to display the second image and a third image guiding a course of the vehicle when the vehicle has reached a second position located a predetermined distance before a first position at which the vehicle has to make a turn in the route to the destination.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: October 5, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Masaya Ikeda, Kenji Sugiyama, Yoshitaka Mimura, Takashi Watanabe, Taichi Sogo, Masayuki Takahashi
  • Publication number: 20210273591
    Abstract: A power conversion device includes a harmonic voltage generation unit that superimposes dc-axis and qc-axis harmonic voltages on dc-axis and qc-axis voltage commands in accordance with a switching signal; and an inductance estimation unit that estimates dc-axis inductance and qc-axis inductance on a basis of dc-axis and qc-axis harmonic currents, amplitude values of the harmonic voltages, and the switching signal.
    Type: Application
    Filed: May 29, 2019
    Publication date: September 2, 2021
    Inventors: Kazuaki TOBARI, Yoshitaka IWAJI, Agnes HADINATA, Yusaku ONUMA, Takuya SUGIMOTO, Atsuhiko NAKAMURA, Hiroshi WATANABE, Yoshiyuki TAGUCHI
  • Patent number: 11033382
    Abstract: There is provided an intraocular lens injector including: a hollow body composed of an injector main body 5 having a lens installing portion on which an intraocular lens is installed, and an injection tube 7 attached to a tip part of the injector body 5; a rotary member 8 having a first threaded portion formed thereon and attached to a rear end part of the injector body 5 that constitutes the hollow body, rotatably around an axis of the hollow body; a plunger 9 having a second threaded portion 9c formed thereon, and configured to move through the hollow body in an axial direction of the hollow body; a rod 10 configured to push out the intraocular lens from the lens installing portion by moving through the hollow body in the axial direction of the hollow body together with the plunger 9, wherein a tip side of the plunger 9 is injected into the hollow body in a state in which the first threaded portion and the second threaded portion 9c are meshed with each other, and a rear end side of the plunger 9 is dispose
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: June 15, 2021
    Assignee: Hoya Corporation
    Inventors: Yoshitaka Watanabe, Kazunori Kudo
  • Publication number: 20210161653
    Abstract: There is provided an intraocular lens injector capable of smoothly performing an operation when an intraocular lens is injected, the intraocular lens injector, including: a hollow body 5 having a lens setting portion 11 on which an intraocular lens 4 is set; a plunger 9 that moves through an inside of the hollow body 5 in an axial direction of the hollow body 5; a pushing member 10 that pushes out the intraocular lens 4 from the lens setting portion 11 by moving together with the plunger 9, through the inside of the hollow body 5, and toward front part of the axial direction of the hollow body 5; a first flange 14a protruded from an outer circumferential surface of the hollow body 5; and a second flange 14b arranged on a rear end side with respect to the first flange and protruded from the outer circumferential surface of the hollow body 5; wherein the hollow body 5 is configured so that a shape on the A direction side toward a center of gravity of the hollow body 5 in which the first flange 14a is arra
    Type: Application
    Filed: April 25, 2019
    Publication date: June 3, 2021
    Inventors: Masahiro NODA, Yoshitaka WATANABE
  • Patent number: 10914380
    Abstract: A piston includes a piston body and a piston ring fitted into a ring groove. The piston ring has a top surface that includes: a convex portion formed between an inner edge position and a central position at which a radial direction thickness is ½, with the piston ring in a free state, and a planar portion or an inclined peripheral portion continuous with the convex portion on a radially outer side of the convex portion. In a predetermined status of the piston body and the piston ring, an angle between the top surface of the ring groove and the planar portion or the inclined peripheral portion is at least 18 arcminutes in a cross-section that is parallel to a central axis of the piston body and includes the central axis.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: February 9, 2021
    Assignees: KABUSHIKI KAISHA RIKEN, HONDA FOUNDRY CO., LTD.
    Inventors: Kazuyuki Fushimi, Yoshitaka Watanabe, Kazuki Sato
  • Patent number: 10790914
    Abstract: An acoustic communication system includes a first acoustic communication apparatus and a second acoustic communication apparatus. The first acoustic communication apparatus transmits a first acoustic wave to the second acoustic communication apparatus. The second acoustic communication apparatus transmits, as a response, a second acoustic wave to the first acoustic communication apparatus continuously in constant cycles until a next first acoustic wave is received. Each cycle includes a transmission period and a pause period.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: September 29, 2020
    Assignee: JAPAN AGENCY FOR MARINE-EARTH SCIENCE AND TECHNOLOGY
    Inventors: Hiroshi Ochi, Takuya Shimura, Yoshitaka Watanabe, Mitsuyasu Deguchi
  • Publication number: 20200040995
    Abstract: A piston includes a piston body and a piston ring fitted into a ring groove. The piston ring has a top surface that includes: a convex portion formed between an inner edge position and a central position at which a radial direction thickness is ½, with the piston ring in a free state, and a planar portion or an inclined peripheral portion continuous with the convex portion on a radially outer side of the convex portion. In a predetermined status of the piston body and the piston ring, an angle between the top surface of the ring groove and the planar portion or the inclined peripheral portion is at least 18 arcminutes in a cross-section that is parallel to a central axis of the piston body and includes the central axis.
    Type: Application
    Filed: March 27, 2018
    Publication date: February 6, 2020
    Applicants: KABUSHIKI KAISHA RIKEN, HONDA FOUNDRY CO., LTD.
    Inventors: Kazuyuki FUSHIMI, Yoshitaka WATANABE, Kazuki SATO
  • Patent number: 10512864
    Abstract: An oil separator configured to separate from gas mist oil contained in target gas of the present invention is aimed to enhance separation efficiency of oil mist contained in target gas while reducing the weight of the separation disks. The oil separator of the present invention includes a rotor. This rotor has a plurality of separation disks 34 (61, 62) layered along the axis line of the spindle. Each of the separation disks 34 are configured with truncated cone shape plate members and have formed concavo-convex ribs 64, 65 extending from the rotational center in the radiation direction on the outer peripheral side parts 61b, 62b corresponding to the inclined surfaces of the truncated cone.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: December 24, 2019
    Assignee: TOKYO ROKI CO., LTD.
    Inventors: Kosaku Ishida, Kazuaki Murai, Yoshitaka Watanabe
  • Publication number: 20190316501
    Abstract: A stack of separation disks, which includes a spindle and a rotor, and separates mist oil from processing-target gas by rotating the rotor and introducing oil for separation and the processing-target gas; the stack constituting the rotor, and the stack including: a first separation disk that is constituted by a plate member having a circular truncated cone shape, and has a rib formed on an inclined surface of the circular truncated cone shape, the rib extending in a first direction inclined toward one direction in a rotation direction with respect to a radial direction from a center of rotation; and a second separation disk that is constituted by a plate member having the circular truncated cone shape, and has a rib formed on an inclined surface of the circular truncated cone shape, the rib extending in a second direction inclined toward another direction opposite the one direction.
    Type: Application
    Filed: May 23, 2016
    Publication date: October 17, 2019
    Applicant: TOKYO ROKI CO., LTD.
    Inventor: Yoshitaka Watanabe
  • Publication number: 20190192284
    Abstract: There is provided an intraocular lens injector for injecting an intraocular lens into an eye, including: an injector main body 5; an injection tube 7 attached to a tip part of the injector main body 5 and having a nozzle portion 7b; and an attachment member 16 having a protruding surface disposed in a state of protruding to outside from an outer circumferential surface of the nozzle portion 7b, wherein the attachment member 16 has an engaging portion 16b engaged with a sleeve portion 16a and is configured to be movable with respect to the injection tubed 7.
    Type: Application
    Filed: June 28, 2018
    Publication date: June 27, 2019
    Applicant: Hoya Corporation
    Inventors: Yoshitaka WATANABE, Xiaoxiao ZHANG
  • Patent number: 10322362
    Abstract: An oil separator includes a cylindrical housing that accommodates a rotor and is provided with a gas discharge portion (first exhaust portion), the oil separator being configured to introduce target gas from a rotation center side of the rotor to condense oil mist and emit condensed oil from an outer peripheral edge of the rotor and further being configured to discharge from the housing through the gas discharge portion the blow-by gas (target gas) after having the oil mist separated. The oil separator includes a dome portion (sectioning member) that covers from an outside of the housing the gas discharge portion and sections a closed space around the gas discharge portion and an outlet pipe (second exhaust portion) that is provided to the dome portion and that discharges the blow-by gas from the closed space that is sectioned by the dome portion.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: June 18, 2019
    Assignee: TOKYO ROKI CO., LTD.
    Inventors: Kosaku Ishida, Yoshitaka Watanabe
  • Publication number: 20190151078
    Abstract: There is provided an intraocular lens injector including: a hollow body composed of an injector main body 5 having a lens installing portion on which an intraocular lens is installed, and an injection tube 7 attached to a tip part of the injector body 5; a rotary member 8 having a first threaded portion formed thereon and attached to a rear end part of the injector body 5 that constitutes the hollow body, rotatably around an axis of the hollow body; a plunger 9 having a second threaded portion 9c formed thereon, and configured to move through the hollow body in an axial direction of the hollow body; a rod 10 configured to push out the intraocular lens from the lens installing portion by moving through the hollow body in the axial direction of the hollow body together with the plunger 9, wherein a tip side of the plunger 9 is injected into the hollow body in a state in which the first threaded portion and the second threaded portion 9c are meshed with each other, and a rear end side of the plunger 9 is dispose
    Type: Application
    Filed: June 28, 2017
    Publication date: May 23, 2019
    Inventors: Yoshitaka WATANABE, Kazunori KUDO
  • Patent number: 10226725
    Abstract: A rotor separates oil mist from a target gas. This rotor includes a separation disk group having separation disks including a plurality of truncated cone shape plate members layered. The separation disk group includes a first space (hollow part with attachment opening) and a second space (gaps between separation disks), the first space formed on a rotation center side of the rotor and the second space formed between separation disks that are laid over and in communication with the first space. The first space contains an oil introducing portion (gap between the upper end of the spindle and the upper side sealing member). Target gas is introduced into the first space, target gas and oil introduced from the oil introducing portion are made to flow from the first space to the second space to be discharged outward from an outer peripheral edge of the separation disk group, while rotating the rotor.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: March 12, 2019
    Assignee: TOKYO ROKI CO., LTD.
    Inventors: Kosaku Ishida, Tsuyoshi Yao, Yoshitaka Watanabe
  • Publication number: 20180368811
    Abstract: According to one embodiment, an ultrasound diagnostic apparatus includes at least one circuitry, and control circuitry. The at least one circuitry is used for an ultrasound scan. The control circuitry is configured to reset the at least one circuitry upon receipt of a stop instruction to stop the ultrasound scan and to stop supply of a clock to the at least one circuitry.
    Type: Application
    Filed: June 15, 2018
    Publication date: December 27, 2018
    Applicant: Canon Medical Systems Corporation
    Inventors: Nobuyuki NAKAUCHI, Yoshitaka WATANABE, Shigeru AKIYAMA, Taketoshi NAGAI, Jaeho CHOI, Yasuhiro TAKAHASHI
  • Patent number: 9987579
    Abstract: An oil separator includes a plurality of separation discs rotatable together with a spindle and layered in an axis direction of the spindle, a nozzle that protrudes from a lower circumferential face of the spindle and configured to rotate the spindle by injection of an oil, a lower case has a gas inflow part into which blow-by gas flows, an oil discharge part into which an oil after separation is discharged, an upper case that sections together with the lower case a housing chamber in which spindle, separation discs and nozzle are housed, and a sectioning member that sections the housing chamber into a primary separation chamber, configured to primarily separate the oil mist, and a secondary separation chamber that secondarily separates the oil mist included in the gas after primary separation, and forms between the nozzle and the separation discs a communication opening that guides the gas being treated.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: June 5, 2018
    Assignee: Tokyo Roki Co., Ltd.
    Inventors: Kosaku Ishida, Yoshitaka Watanabe, Kazuo Tanaka, Takayuki Hoshi, Takatsugu Kurosawa
  • Publication number: 20180083731
    Abstract: An acoustic communication system includes a first acoustic communication apparatus and a second acoustic communication apparatus. The first acoustic communication apparatus transmits a first acoustic wave to the second acoustic communication apparatus. The second acoustic communication apparatus transmits, as a response, a second acoustic wave to the first acoustic communication apparatus continuously in constant cycles until a next first acoustic wave is received. Each cycle includes a transmission period and a pause period.
    Type: Application
    Filed: September 14, 2017
    Publication date: March 22, 2018
    Inventors: Hiroshi Ochi, Takuya Shimura, Yoshitaka Watanabe, Mitsuyasu Deguchi
  • Patent number: 9817139
    Abstract: An underwater observation apparatus includes an observation apparatus body, a weight structure, a coupling device, and a fusion cutting device. The observation apparatus body is configured to house at least a power source, a communication circuit for a communication device, and a signal processing device. The coupling device couples the observation apparatus body with the weight structure via a remote-controlled release structure capable of releasing the observation apparatus body from the weight structure. The underwater observation apparatus also includes a power feeding coil located inside of a glass sphere to generate magnetic flux, and a power receiving coil located outside of the glass sphere. The power receiving coil generates an induced voltage when interlinked by the magnetic flux generated by the power feeding coil. The power receiving coil is configured to supply drive power to the fusion cutting device.
    Type: Grant
    Filed: May 21, 2013
    Date of Patent: November 14, 2017
    Assignees: JAPAN AGENCY FOR MARINE-EARTH SCIENCE AND TECHNOLOGY, NIPPON MARINE ENTERPRISES, LTD.
    Inventors: Satoshi Shimizu, Takuya Maekawa, Yoshitaka Watanabe, Kiyoshi Hatakeyama