Patents by Inventor Toshiaki Yamashita

Toshiaki Yamashita 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: 20220173280
    Abstract: A light-transmissive member includes: a light transmitting portion having an emission surface from which light is emitted; and a metal region on the emission surface, wherein the metal region comprises either (i) a metal film having a thickness in a range of 1 nm to 10 nm, or (ii) dispersed metal particles each having a maximum length in a direction perpendicular to the emission surface in a range of 1 nm to 100 nm.
    Type: Application
    Filed: November 29, 2021
    Publication date: June 2, 2022
    Applicant: NICHIA CORPORATION
    Inventor: Toshiaki YAMASHITA
  • Publication number: 20220149252
    Abstract: A wavelength conversion part includes: a wavelength conversion member formed primarily of a ceramic material; an enclosing member formed primarily of a ceramic material, wherein the enclosing member surrounds one or more lateral faces of the wavelength conversion member; and a heat dissipating member having an upper face, wherein the heat dissipating member is fixed to the wavelength conversion member, and wherein the upper face of the heat dissipating member opposes lower faces of the wavelength conversion member and enclosing member. The lower face of the wavelength conversion member projects towards the heat dissipating member beyond the lower face of the enclosing member. A portion of the lower face of the enclosing member is separated from the upper face of the heat dissipating member by an air gap.
    Type: Application
    Filed: January 21, 2022
    Publication date: May 12, 2022
    Applicant: NICHIA CORPORATION
    Inventors: Toshiaki YAMASHITA, Akinori HARA
  • Patent number: 11264544
    Abstract: A wavelength conversion part includes: a wavelength conversion member formed primarily of a ceramic material, wherein the wavelength conversion member has a lower face and one or more lateral faces; an enclosing member formed primarily of a ceramic material, wherein the enclosing member has a lower face, and wherein the enclosing member surrounds the one or more lateral faces of the wavelength conversion member; and a heat dissipating member having a upper face, wherein the heat dissipating member is fixed to the wavelength conversion member, and wherein the upper face of the heat dissipating member opposes the lower face of the wavelength conversion member and the lower face of the enclosing member. The lower face of the wavelength conversion member projects towards the heat dissipating member beyond the lower face of the enclosing member.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: March 1, 2022
    Assignee: NICHIA CORPORATION
    Inventors: Toshiaki Yamashita, Akinori Hara
  • Publication number: 20220010202
    Abstract: A method of manufacturing a wavelength conversion member that includes a sintered body having a light incidence face, a light emission face, and a light reflecting face different from the light incidence face and the light emission face, the method comprising: providing a sintered body containing inorganic particles and phosphor particles, and forming a plurality of recessed portions on the light reflecting face of the sintered body, which comprises acid treating the sintered body.
    Type: Application
    Filed: July 9, 2021
    Publication date: January 13, 2022
    Applicant: NICHIA CORPORATION
    Inventor: Toshiaki YAMASHITA
  • Publication number: 20210384699
    Abstract: A method of manufacturing a metal-coated member includes: providing a composite ceramic member including a ceramic part, and a connection part connected to the ceramic part; disposing a precious metal layer on a surface region that includes at least a portion of a surface of the ceramic part and a portion of a surface of the connection part, the precious metal layer including a precious metal; and removing at least a portion of the precious metal layer that is on the surface of the ceramic part and delineated by the boundary between the ceramic part and the connection part. The connection part has stronger adhesion to the precious metal than the ceramic part.
    Type: Application
    Filed: June 4, 2021
    Publication date: December 9, 2021
    Applicant: NICHIA CORPORATION
    Inventor: Toshiaki YAMASHITA
  • Publication number: 20210364794
    Abstract: An optical control device is provided that controls an angle of a reflecting member. The optical control device includes a holding portion, an actuator, an angle detection unit, and a control unit. The angle detection unit is provided at a position outside an outer shape of the actuator in an actuator holder on which the actuator is placed, and detects a rotation angle of the reflecting member. The control unit drives the actuator based on the angle detected by the angle detection unit, and controls the rotation angle of the reflecting member.
    Type: Application
    Filed: August 3, 2021
    Publication date: November 25, 2021
    Inventors: Katsumi Fujimoto, Tsuguji Kambayashi, Toshiaki Yamashita
  • Publication number: 20210332475
    Abstract: A method for manufacturing a wavelength conversion member, includes: providing a wavelength conversion layer having a phosphor-containing portion and a light reflecting portion surrounding the phosphor-containing portion, and the wavelength conversion layer having an upper surface, a bottom surface and at least one side surface; forming a light-blocking film on the upper surface of the wavelength conversion layer; and removing a part of the light-blocking film by laser processing to expose at least a part of the phosphor-containing portion from the light-blocking film.
    Type: Application
    Filed: April 14, 2021
    Publication date: October 28, 2021
    Inventors: Naoki EBOSHI, Hiroaki YUTO, Hiroki SAKATA, Toshiaki YAMASHITA, Akinori HARA
  • Publication number: 20210325908
    Abstract: In order to enable both positioning control and movement control of a moving body that have been adapted to the movement state of the moving body, a selection device comprises: a movement mode designation unit that designates a movement mode for a movement performed by the moving body on the basis of surroundings state information expressing the state of the surroundings of the moving body, and movement state information expressing the movement state of the moving body; and a selection unit that uses the movement mode to select a control mode from either a first control mode for performing a first control, which is a control of the position and orientation of the moving body, or a second control mode for performing a second control, which is a control of the velocity and angular velocity of the moving body.
    Type: Application
    Filed: August 20, 2019
    Publication date: October 21, 2021
    Applicant: NEC Corporation
    Inventor: Toshiaki YAMASHITA
  • Publication number: 20210313767
    Abstract: A light emitting device includes: a light emitting element; and a wavelength conversion member including: a wavelength conversion part configured to convert light emitted from the light emitting element into light having a different wavelength and to output the light having the different wavelength, an enclosing part enclosing the wavelength conversion part, and a conducting layer disposed on the enclosing part and surrounding the wavelength conversion part. The conducting layer comprises ruthenium oxide.
    Type: Application
    Filed: April 5, 2021
    Publication date: October 7, 2021
    Applicant: NICHIA CORPORATION
    Inventor: Toshiaki YAMASHITA
  • Publication number: 20210300269
    Abstract: A wire harness attachment structure for a vehicle seat capable of being flipped up from a usage position where the vehicle seat is disposed on a floor to a storage position where the vehicle seat is disposed along a standing wall portion of a vehicle body, includes: a rotation shaft that couples the vehicle seat to the standing wall portion; a guide member including a pair of wall portions arranged to face each other in an axial direction of the rotation shaft, and being partly opened in a radial direction between the wall portions; and a wire harness that electrically couples the vehicle seat and the vehicle body. A portion of the wire harness is disposed between the wall portions and does not come into contact with a member other than the wall portions when the vehicle seat is flipped up from the usage position to the storage position.
    Type: Application
    Filed: March 23, 2021
    Publication date: September 30, 2021
    Applicants: TOYOTA BOSHOKU KABUSHIKI KAISHA, YAZAKI CORPORATION
    Inventors: Keita TSUJI, Shingo KUROIWA, Toshiaki YAMASHITA
  • Patent number: 11128099
    Abstract: A light-emitting device includes: a semiconductor laser element; a surrounding member surrounding the semiconductor laser element; a fluorescent member containing a fluorescent material that is excitable by light emitted from the semiconductor laser element so as to emit light having a wavelength different from a wavelength of the light emitted from the semiconductor laser element; a supporting member located above the surrounding member, wherein the supporting member comprises a through-hole that allows light emitted from the semiconductor laser element to pass therethrough, and wherein the fluorescent member is located in the through-hole; a light-transmissive heat dissipating member, wherein a lower surface of the heat dissipating member is bonded to the surrounding member, and an upper surface of the heat dissipating member is bonded to the supporting member; and a reflective film disposed on the heat dissipating member.
    Type: Grant
    Filed: October 29, 2019
    Date of Patent: September 21, 2021
    Assignee: NICHIA CORPORATION
    Inventor: Toshiaki Yamashita
  • Patent number: 11105775
    Abstract: An inspection operator can perform a hammering inspection without operation to move an inspection device to a location to be inspected, and the hammering inspection can also be performed to the location to be inspected where a vehicle has difficulty in entering. An inspection system includes a flying device including a hammering inspection unit that performs an inspection and a flying unit that flies with the hammering inspection unit, a ground-side device that is fixedly installed at a position relative to a location to be inspected and detects a position of the flying device, and a flight instruction unit that controls the flying device in such a way that a forwarding direction of the flying device is a direction from the ground-side device to the location to be inspected based on the position of the flying device.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: August 31, 2021
    Assignee: NEC CORPORATION
    Inventors: Toshiaki Yamashita, Hideo Adachi, Michitaro Shozawa
  • Patent number: 11043789
    Abstract: A light emitting device includes a plurality of semiconductor laser elements, a light-transmissive member, and a wavelength conversion member. Each of the semiconductor laser elements is configured to emit light having a first wavelength. The light-transmissive member includes a plurality of first inclined surfaces and a lower surface. The light-transmissive member is positioned with respect to the semiconductor laser elements so that beams of the light emitted from the semiconductor laser elements enter the light-transmissive member respectively through the first inclined surfaces and exit from the lower surface. The wavelength conversion member is disposed in contact with the lower surface of the light-transmissive member and configured to convert at least a portion of the light exiting from the lower surface to wavelength-converted light having a second wavelength.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: June 22, 2021
    Assignee: NICHIA CORPORATION
    Inventor: Toshiaki Yamashita
  • Patent number: 11018471
    Abstract: A method of producing a light emitting device includes: providing a fluorescent material; dividing a plurality of laser elements into a shorter-wavelength group and a longer-wavelength group so that lights emitted from the laser elements in the shorter-wavelength group have peak wavelengths shorter than an excitation peak wavelength of the fluorescent material and lights emitted from the laser elements in the longer-wavelength group have peak wavelengths longer than the excitation peak wavelength of the fluorescent material; and selecting one or more of the laser elements from each of the shorter-wavelength group and the longer-wavelength group in combination with the fluorescent material to produce a light emitting device.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: May 25, 2021
    Assignee: NICHIA CORPORATION
    Inventor: Toshiaki Yamashita
  • Publication number: 20210107635
    Abstract: The multi-rotor helicopter includes an airframe that is a device main body, and a plurality of fan units configured to raise the airframe. Each of the plurality of fan units has a fan frame supported by the airframe, a propeller axially supported by a support arm integrated with the fan frame and configured to generate a lifting power and a propulsion power, a drive motor driven to rotate the propeller, and a motor driver configured to control a driving current supplied to the drive motor and control rotation of the propeller. The motor driver is provided at a position above the propeller.
    Type: Application
    Filed: August 4, 2020
    Publication date: April 15, 2021
    Applicant: NEC CORPORATION
    Inventors: Hisashi MIZUMOTO, Toshiaki YAMASHITA, Hideo ADACHI
  • Publication number: 20210109066
    Abstract: An inspection apparatus comprises a chassis position/attitude estimator to estimate position/attitude information of a moving body and generate a chassis position/attitude estimation signal, a hammering tester hammer part error signal generator to generate a hammering tester hammer part error signal, a hammering tester hammer part position/attitude signal generator to generate a hammering tester hammer part position/attitude signal, a first sensor data frequency characteristic interpolator to generate a first sensor data frequency characteristic interpolation signal from the received chassis position/attitude estimation signal, a second sensor data frequency characteristic interpolator to generate a second sensor data frequency characteristic interpolation signal from the received hammering tester hammer part error signal and the received hammering tester hammer part position/attitude signal, and a hammering tester hammer part position/attitude estimator to generate a hammering tester hammer part position/att
    Type: Application
    Filed: March 30, 2018
    Publication date: April 15, 2021
    Applicant: NEC CORPORATION
    Inventors: Toshiaki YAMASHITA, Michitaro SHOZAWA, Satoshi AOKI
  • Publication number: 20210091531
    Abstract: A light emission device includes: a plurality of semiconductor light-emitting elements; an optical element configured to collimate light emitted from each of the plurality of semiconductor light-emitting elements and output a plurality of collimated beams; a converging portion having an aspheric surface configured to converge the plurality of collimated beams; and a wavelength-converting portion including a transmissive region and a reflective region that surrounds the transmissive region, the transmissive region including a light-incident surface at which the plurality of collimated beams enter, wherein the transmissive region includes a phosphor adapted to be excited by the plurality of collimated beams that have been converged by the converging portion.
    Type: Application
    Filed: September 9, 2020
    Publication date: March 25, 2021
    Applicant: NICHIA CORPORATION
    Inventors: Akinori HARA, Toshiaki YAMASHITA
  • Patent number: 10901095
    Abstract: The present invention makes it possible to enhance the accuracy of position and attitude estimation.
    Type: Grant
    Filed: April 15, 2015
    Date of Patent: January 26, 2021
    Assignee: NEC CORPORATION
    Inventor: Toshiaki Yamashita
  • Patent number: 10886531
    Abstract: Provided is a method for producing a negative electrode for an electric storage device, the method comprising the steps of preparing a negative electrode composition comprising a negative electrode active material that reversibly carries a sodium ion, metal sodium, and a liquid dispersion medium for dispersing them; allowing a negative electrode current collector to hold the negative electrode composition; evaporating at least part of the liquid dispersion medium from the negative electrode composition held by the negative electrode current collector, thereby giving a negative electrode precursor comprising the negative electrode active material, the metal sodium, and the negative electrode current collector; and bringing the negative electrode precursor into contact with an electrolyte having sodium ion conductivity, thereby doping the negative electrode active material with sodium eluted from the metal sodium.
    Type: Grant
    Filed: November 12, 2015
    Date of Patent: January 5, 2021
    Assignees: Sumitomo Electric Industries, Ltd., Nippon Soda Co., Ltd.
    Inventors: Koji Nitta, Shoichiro Sakai, Atsushi Fukunaga, Eiko Imazaki, Koma Numata, Hideaki Ito, Hitoshi Kobayashi, Toshiaki Yamashita, Shinichi Maruyama
  • Publication number: 20200378927
    Abstract: The present invention makes it possible for sounding of an inspection location on an outer wall of a building or the like to be performed using a simple operation. A user interface device accepts an input for designating an inspection location. The mobile robot device flies autonomously and moves to the inspection location, on the basis of the input into the user interface device and the current location of the mobile robot device. The mobile robot device inspects the inspection location using an inspection means such as a sounding means.
    Type: Application
    Filed: June 14, 2017
    Publication date: December 3, 2020
    Applicant: NEC Corporation
    Inventors: Toshihiro NISHIZAWA, Toshiaki YAMASHITA, Namiki HASHIMOTO, Hideo ADACHI, Hiroshi MUROFUSHI, Motoaki SHIMIZU, Akira KOYASHIKI, Kenzo NONAMI, Daisuke IWAKURA, Tytus WOJTARA, Kohji INAGAKI, Naotaka SHIKIDA, Satoshi AOKI