Patents by Inventor Takashi Yamazaki

Takashi Yamazaki 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: 10490324
    Abstract: In an alloy for an R-T-B-based rare earth sintered magnet of the present invention formed of a rare earth element R, a transition metal T containing Fe as a main component, a metal element M containing one or more types of metals selected from Al, Ga, and Cu, and B and inevitable impurities, 13 at % to 16 at % of R is contained, 4.5 at % to 6.2 at % of B is contained, 0.1 at % to 2.4 at % of M is contained, the balance is T and the inevitable impurities, a proportion of Dy in the entire rare earth element is 0 at % to 65 at %, Formula 1 described below is satisfied, a main phase containing R2Fe14B and an alloy grain boundary phase containing more R than the main phase are included, and a distance between the alloy grain boundary phases is greater than or equal to 3 ?m and less than or equal to 11 ?m. 0.30?B/TRE?0.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: November 26, 2019
    Assignee: TDK CORPORATION
    Inventors: Takashi Yamazaki, Kenichiro Nakajima, Akifumi Muraoka
  • Publication number: 20190323626
    Abstract: A valve device includes a body, a joint, a check valve, a valve seat fixation member having an outer peripheral surface on which an external thread is provided, and a sealing member. The body has an attachment hole that attaches the joint and the valve seat fixation member from an outside of the body in a sequence of the joint and the valve seat fixation member, and that has an inner peripheral surface in which an internal thread screwed to the external thread of the valve seat fixation member is provided. The sealing member is provided between the joint and the valve seat fixation member. An outer peripheral edge of the sealing member is located radially inward of a screwed region of the internal thread and the external thread.
    Type: Application
    Filed: April 17, 2019
    Publication date: October 24, 2019
    Applicant: JTEKT CORPORATION
    Inventors: Takuya SUZUKI, Kazuki OKAMURA, Takashi YAMAZAKI, Toshihiko SHIMA, Kazushi NUMAZAKI, Naohiro SAKAMOTO, Akio NAKAMURA, Koji KIDA
  • Patent number: 10428408
    Abstract: An R-T-B-based rare earth sintered magnet, comprising a rare earth element R, B, a metallic element M which includes one or more metals selected from Al, Ga and Cu, a transition metal T which includes Fe as a main component, and inevitable impurities, wherein the sintered magnet includes 13 atom % to 15.5 atom % of R, 5.0 atom % to 6.0 atom % of B, 0.1 atom % to 2.4 atom % of M, and T and the inevitable impurities as a balance, and wherein the sintered magnet includes 0.015 atom % to 0.10 atom % of Zr as the transition metal T.
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: October 1, 2019
    Assignee: TDK Corporation
    Inventors: Takashi Yamazaki, Akifumi Muraoka, Kenichiro Nakajima
  • Patent number: 10416231
    Abstract: An electronic component transport apparatus includes: an openable and closable first opening and closing portion; a first rotation support portion which supports the first opening and closing portion to be rotatable; a second opening and closing portion provided to be openable and closable in the first opening and closing portion; and a second rotation support portion which supports the second opening and closing portion to be rotatable. An area of the first opening and closing portion is greater than an area of the second opening and closing portion.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: September 17, 2019
    Assignee: Seiko Epson Corporation
    Inventors: Daisuke Kirihara, Masami Maeda, Toshioki Shimojima, Takashi Yamazaki
  • Patent number: 10399888
    Abstract: The invention provides a production method for a glass particulate deposit M which includes a deposition step where a starting rod 111 and a burner 222 for production of glass particles 130 are installed in a reactor 102, a glass source material is introduced into the burner 222, the glass source material is subjected to flame thermal decomposition in the flame formed by the burner 222 to thereby form glass particles 130, and the formed glass particles 130 are deposited on the starting rod 111 to produce a glass particulate deposit M. In the deposition step of the production method, at least two ejecting ports 231 are provided per one burner 222 for ejecting the glass source material from the burner 222, and a flow rate of the glass source material jetting out through one glass source material ejecting port 231 is from 4 m/s to 60 m/s.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: September 3, 2019
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Tomohiro Ishihara, Takashi Yamazaki
  • Publication number: 20190229706
    Abstract: A vibration element includes a base and a vibrating arm extending from the base. The vibrating arm includes an arm positioned between the base and a weight. A weight film is disposed on the weight. The weight has a first principal surface and a second principal surface in a front and back relationship with respect to a center plane of the arm. A center of gravity of the weight is located between the first principal surface and the center plane of the arm. A center of gravity of the weight film is located between the second principal surface and the center plane of the arm.
    Type: Application
    Filed: January 22, 2019
    Publication date: July 25, 2019
    Inventors: Seiichiro OGURA, Keiichi YAMAGUCHI, Masahiro OSHIO, Takashi YAMAZAKI
  • Publication number: 20190210910
    Abstract: An optical fiber drawing method where a glass base material passes through an opening provided in a drawing furnace from the material side and drawing is performed by suspending and descending the material into the drawing furnace while being sealed by a sealing mechanism provided in the vicinity of the opening, in which a first portion of the sealing mechanism seals a gap between an outer peripheral surface of the material and an inner surface of the opening when drawing starts and a tapered portion of the material starts passing through the first portion, and a second portion is disposed above the first portion before sealing by the first portion becomes ineffective, and then conduction between inside and outside of the drawing furnace is carried out to prevent fluctuation of pressure inside the furnace immediately after disposing the second portion and the conduction is interrupted when the material further descends.
    Type: Application
    Filed: September 4, 2017
    Publication date: July 11, 2019
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Satoshi YOSHIKAWA, Iwao OKAZAKI, Takashi YAMAZAKI
  • Publication number: 20190091869
    Abstract: To select a picking position of a workpiece in a simpler method. A robot system includes a three-dimensional measuring device for generating a range image of a plurality of workpieces, a robot having a hand for picking up at least one of the plurality of workpieces, a display part for displaying the range image generated by the three-dimensional measuring device, and a reception part for receiving a teaching of a picking position for picking-up by the hand on the displayed range image. The robot picks up at least one of the plurality of workpieces by the hand on the basis of the taught picking position.
    Type: Application
    Filed: August 30, 2018
    Publication date: March 28, 2019
    Inventors: Takashi YAMAZAKI, Daisuke OKANOHARA, Eiichi MATSUMOTO
  • Publication number: 20190041834
    Abstract: A product-input-plan developing device for developing product input plans including an input order of products to a manufacture line that includes a branch and a merge, and paths along which the products individually flow in the manufacture line, includes a processor configured to optimize product input plans for k number of products for which a product input plan is developable without causing information explosion from among the products to be input to the manufacture line; and determine adoption of product input plans for first n (n<k) number of products from among the product input plans optimized by the processor, wherein the processor repeatedly executes the process for optimizing the product input plan and the processor repeatedly executes the process for determination for a product for which adoption of the product input plan is not determined by the processor.
    Type: Application
    Filed: October 10, 2018
    Publication date: February 7, 2019
    Applicant: FUJITSU LIMITED
    Inventor: Takashi Yamazaki
  • Patent number: 10177385
    Abstract: A nickel-hydrogen secondary battery includes an electrode group including a separator, a positive electrode and a negative electrode, the positive electrode includes a positive electrode active material, the positive electrode active material includes a composite particle including a compound of Co and a compound of Ni, and the ratio R represented by A/B satisfies a relationship of R?0.3, when the amount of jumping in the X-ray absorption fine structure spectrum of the Co in 7600 to 7800 eV and the amount of jumping in the X-ray absorption fine structure spectrum of the Ni in 8300 to 8500 eV obtained by measurement according to a conversion electron yield method are defined as A and B, respectively.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: January 8, 2019
    Assignees: FDK CORPORATION, FUJITSU LIMITED
    Inventors: Yuzo Imoto, Takeshi Ito, Shigekazu Yasuoka, Shuuichi Doi, Takashi Yamazaki, Yuji Kataoka
  • Publication number: 20180351859
    Abstract: A communication path control system includes a communication performance evaluation unit configured to evaluate communication performance of a network based on a number of SYN packets transmitted to a second communication device by a first communication device, and a path control unit configured to change a communication path of the first communication device to a third communication device from the second communication device in the case where a deterioration of communication performance of the second communication device is detected.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 6, 2018
    Inventors: Takashi YAMAZAKI, Fumihiro SATO, Keitaro OTA, Tatsuya KYOGOKU
  • Patent number: 10148898
    Abstract: An image sensor driving apparatus extracts an image signal from an image sensor including a plurality of photoelectric conversion elements two-dimensionally arrayed, and includes a conversion unit which converts the image signal into digital data by performing offset correction for the image signal. The apparatus obtains digital data corresponding to a first sampling count by causing the conversion unit to process a reference voltage signal in accordance with a synchronization signal which determines an imaging frame rate, and obtains digital data corresponding to a second sampling count by causing the conversion unit to process a reference voltage signal every time extracting an image signal from a photoelectric conversion element group obtained by dividing a plurality of photoelectric conversion elements. The apparatus generates a correction value used for offset correction based on the obtained digital data corresponding to the first and second sampling counts.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: December 4, 2018
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Kanako Dowaki, Yuichi Naito, Kazumasa Matsumoto, Takashi Yamazaki
  • Publication number: 20180312395
    Abstract: A MEMS element includes a surface silicon layer on which an element is formed and on which a first electrode and a second electrode as element electrodes and an electrode pad connected to the first electrode and the second electrode are disposed, and in which a first wiring through-hole is disposed at a position overlapping with the electrode pad of the surface silicon layer and a wiring electrode electrically connected to the electrode pad is disposed in the first wiring through-hole, in plan view.
    Type: Application
    Filed: April 24, 2018
    Publication date: November 1, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Takashi YAMAZAKI, Akihiko EBINA, Osamu KAWAUCHI, Yoshihiko YOKOYAMA
  • Patent number: 10114911
    Abstract: A fluid structure interaction simulation method includes a graph information forming process to form graph information of nodes obtained by discretizing a computing region for each of a fluid and a structure that are represented by meshes, and a main time development loop process to simulate a physical phenomenon. The loop process includes arranging IMEs (Interaction Mediating Elements) that move with a displacement of the structure, on a boundary of the structure, defining, within the IME, correcting functions of a pressure and a velocity of the fluid that interact with the pressure and the velocity of the fluid and the displacement of the structure, and executing a simulation based on the correcting functions, in a state in which the meshes of the fluid are mismatched to the meshes of the structure.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: October 30, 2018
    Assignees: FUJITSU LIMITED, THE UNIVERSITY OF TOKYO
    Inventors: Takashi Yamazaki, Yoshimasa Kadooka, Toshiaki Hisada, Seiryo Sugiura, Takumi Washio, Junichi Okada
  • Patent number: 10103308
    Abstract: A thermoelectric conversion element includes a p-type film having a perovskite structure, the p-type film including Co; an n-type film having a perovskite structure, the n-type film including Ti; first and second i-type films configured to be arranged to face each other across the n-type film, the first and second i-type films having a perovskite structure and including Ti; and a barrier film configured to be interposed between a multilayer body and the p-type film, the barrier film having a perovskite structure and including Zr, the multilayer body including the n-type film and the first and second i-type films.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: October 16, 2018
    Assignee: FUJITSU LIMITED
    Inventors: John David Baniecki, Takashi Yamazaki, Hiroyuki Aso, Yoshihiko Imanaka
  • Publication number: 20180284301
    Abstract: A radiation imaging apparatus that generates an image by receiving radiation transmitted through an object, comprises a sensor array configured to detect radiation, an obtaining unit configured to obtain an image signal from a detection signal of the sensor array, a power reception unit configured to receive power supplied from outside, and battery that is charged by using the power received by the power reception unit. The radiation imaging apparatus generates, in response to the satisfaction of a predetermined condition after power reception is started by the power reception unit, an image for correction by obtaining the image signal from the obtaining unit.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 4, 2018
    Inventor: Takashi Yamazaki
  • Patent number: 10034076
    Abstract: An earphone includes: a housing; a dynamic driver unit provided in the housing; and a sound conduit having a length of approximately 10 mm or more, the sound conduit being configured to transmit sound output from the dynamic driver unit.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: July 24, 2018
    Assignee: SONY CORPORATION
    Inventors: Tomohiro Matsuo, Akihiro Ogata, Kazuyasu Tsunezumi, Takashi Yamazaki
  • Patent number: 10020097
    Abstract: A method of manufacturing an R-T-B rare earth sintered magnet includes a process of disposing and sintering a compact of a first alloy powder and an alloy material of a second alloy in a chamber of a sintering furnace. The first alloy consists of R which represents a rare earth element, T which represents a transition metal essentially containing Fe, a metal element M which represents Al and/or Ga, B, Cu, and inevitable impurities. The first alloy contains 11 at % to 17 at % of R, 4.5 at % to 6 at % of B, 0 at % to 1.6 at % of M, and T as the balance, and Dy content in all of the rare earth elements is 0 at % to 29 at %. The second alloy consists of R which represents a rare earth element, T which represents a transition metal essentially containing Fe, a metal element M which represents Al and/or Ga, B, Cu, and inevitable impurities. The second alloy contains 11 at % to 20 at % of R, 4.5 at % to 6 at % of B, and 0 at % to 1.
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: July 10, 2018
    Assignee: SHOWA DENKO K.K.
    Inventors: Kenichiro Nakajima, Akifumi Muraoka, Takashi Yamazaki
  • Publication number: 20180175794
    Abstract: A resonator includes a surface silicon layer as a base material, a first silicon oxide layer disposed on a first surface of the surface silicon layer, and a second silicon oxide layer disposed on the opposite side to the surface silicon layer of the first silicon oxide layer, wherein when the thickness of the surface silicon layer is represented by tsi, the thickness of the first silicon oxide layer is represented by ta, and the thickness of the second silicon oxide layer is represented by tb, the following relationships are satisfied: 0.138×tsi<ta<0.268×tsi and 0.189×tsi<tb<0.527×tsi.
    Type: Application
    Filed: December 1, 2017
    Publication date: June 21, 2018
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takashi YAMAZAKI
  • Patent number: 9997470
    Abstract: Embodiments include a semiconductor manufacturing method comprising, providing an object to be processed, the object including a semiconductor element, a sealing resin layer sealing the semiconductor element, a ground terminal electrically connected to the semiconductor element and including a first protruding part protruding through a surface of the resin layer, and a signal terminal electrically connected to the semiconductor element and including a second protruding part protruding through the surface of the resin layer; positioning the object in a jig, wherein the jig covers the entire second protruding part of the signal terminal, and wherein the jig only partially covers the first protruding part of the ground terminal, such that at least a first portion of the first protruding part of the ground terminal is left uncovered by the jig; while the object is positioned in the jig, fabricating a conductive shield layer on the resin layer and at least some of the first portion of the first protruding part of
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: June 12, 2018
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Masaji Iwamoto, Takashi Yamazaki