Patents by Inventor Kazuo Aoki

Kazuo Aoki 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: 10340429
    Abstract: According to one embodiment of the present invention, the light emitting device includes an LED element, a side wall which surrounds the LED element, a phosphor layer which is fixed to the side wall with an adhesive layer therebetween, and is positioned above the LED element, and a metal pad as a heat dissipating member. The side wall includes an insulating base which surrounds the LED element and a metal layer which is formed on a side surface at the LED element side of the base, and is in contact with the metal pad and the adhesive layer. The adhesive layer includes a resin layer that includes a resin containing particles which have higher thermal conductivity than the resin or a layer that includes solder.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: July 2, 2019
    Assignees: KOHA CO., LTD., TAMURA CORPORATION, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Daisuke Inomata, Hiroaki Sano, Seitaro Yoshida, Kazuo Aoki, Kiyoshi Shimamura, Encarnacion Antonia Garcia Villora
  • Patent number: 10269536
    Abstract: The objective of the present invention is to simultaneously achieve image observations at a high resolution using an electron microscope, and X-ray analysis at a high energy-resolution using a microcalorimeter. An X-ray detector is disposed at a position where the intensity of the magnetic field from an objective lens is weaker than the critical magnetic field of a material used in a thermal insulation shield for a superconducting transition-edge sensor or a microcalorimeter. In addition, an optical system for transmitting X-rays to the detector is inserted between a sample and the detector. Alternatively, a magnetic field shield for shielding the X-ray detector is used.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: April 23, 2019
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Satoshi Takada, Naomasa Suzuki, Kazuo Aoki, Takehiko Konno, Takayuki Hoshino
  • Publication number: 20180240643
    Abstract: The objective of the present invention is to simultaneously achieve image observations at a high resolution using an electron microscope, and X-ray analysis at a high energy-resolution using a microcalorimeter. An X-ray detector is disposed at a position where the intensity of the magnetic field from an objective lens is weaker than the critical magnetic field of a material used in a thermal insulation shield for a superconducting transition-edge sensor or a microcalorimeter. In addition, an optical system for transmitting X-rays to the detector is inserted between a sample and the detector. Alternatively, a magnetic field shield for shielding the X-ray detector is used.
    Type: Application
    Filed: March 25, 2015
    Publication date: August 23, 2018
    Inventors: Satoshi TAKADA, Naomasa SUZUKI, Kazuo AOKI, Takehiko KONNO, Takayuki HOSHINO
  • Publication number: 20180088469
    Abstract: Provided is a defect detection device including an illumination unit including a condenser lens and a plurality of light beam synthesis units, and a detection unit detecting scattered light generated on a sample by the illumination unit. The condenser lens condenses a plurality of light beams, emitted onto the sample and having substantially the same wavelength and substantially the same polarization, on the sample. The plurality of light beam synthesis units bring the plurality of light beams close to each other and make the light beams have light paths parallel to the optical axis of the condenser lens.
    Type: Application
    Filed: September 25, 2017
    Publication date: March 29, 2018
    Inventors: Yuko OTANI, Kazuo AOKI, Toshifumi HONDA, Nobuhiko KANZAKI
  • Publication number: 20180044588
    Abstract: A flat plate-shaped phosphor member includes a plurality of granular single crystal phosphors, each of which including a YAG crystal as a mother crystal, the YAG crystal having a composition represented by a formula of Y3-x-yGdxCeyAl5O12-w (0.03?x?0.2, 0.003?y?0.2, ?0.2?w?0.2). Reduction of fluorescence intensity of the phosphor is less than 3% when an excitation light wavelength is 460 nm and a temperature is increased from 25° C. to 100° C.
    Type: Application
    Filed: October 4, 2017
    Publication date: February 15, 2018
    Inventors: Makoto WATANABE, Daisuke INOMATA, Kazuo AOKI, Kiyoshi SHIMAMURA, Encarnacion Antonia GARCIA VILLORA
  • Publication number: 20170249753
    Abstract: A defect observation apparatus includes a storage unit configured to store defect information about defects detected by an external inspection apparatus; a first imaging unit configured to capture an image of a defect using a first imaging condition and a second imaging condition; a control unit configured to correct positional information on the defect using the image captured with the first imaging unit; and a second imaging unit configured to capture an image of the defect based on the corrected positional information.
    Type: Application
    Filed: December 21, 2016
    Publication date: August 31, 2017
    Inventors: Yuko OTANI, Kazuo AOKI, Yohei MINEKAWA
  • Publication number: 20170186923
    Abstract: According to one embodiment of the present invention, the light emitting device includes an LED element, a side wall which surrounds the LED element, a phosphor layer which is fixed to the side wall with an adhesive layer therebetween, and is positioned above the LED element, and a metal pad as a heat dissipating member. The side wall includes an insulating base which surrounds the LED element and a metal layer which is formed on a side surface at the LED element side of the base, and is in contact with the metal pad and the adhesive layer. The adhesive layer includes a resin layer that includes a resin containing particles which have higher thermal conductivity than the resin or a layer that includes solder.
    Type: Application
    Filed: March 16, 2017
    Publication date: June 29, 2017
    Applicants: KOHA CO., LTD., TAMURA CORPORATION, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Daisuke INOMATA, Hiroaki SANO, Seitaro YOSHIDA, Kazuo AOKI, Kiyoshi SHIMAMURA, Encarnacion Antonia GARCIA VILLORA
  • Publication number: 20170179346
    Abstract: A light-emitting device includes a light-emitting element to emit a bluish light, and a yellowish phosphor to absorb the light emitted by the light-emitting element and produce a yellowish fluorescence. The yellowish phosphor comprises a single crystal phosphor comprising a composition represented by a compositional formula (Y1-a-bLuaCeb)3+cAl5-cO12 (where 0?a?0.9994, 0.001?b?0.0067, ?0.016?c?0.315. Commission International de l'Eclairage (CIE) chromaticity coordinates x and y of an emission spectrum obtained by using CIE 1931 color-matching function to satisfy a relationship of ?0.4377x+0.7384?y??0.4377x+0.7504 when a peak wavelength of excitation light is 450 nm and temperature is 25° C. The single crystal phosphor is disposed off of the light-emitting element.
    Type: Application
    Filed: March 9, 2017
    Publication date: June 22, 2017
    Inventors: Daisuke INOMATA, Yusuke ARAI, Hiroaki SANO, Kazuo AOKI, Kiyoshi SHIMAMURA, Encarnacion Antonia GARCIA VILLORA
  • Patent number: 9634216
    Abstract: According to one embodiment of the present invention, the light emitting device includes an LED element, a side wall which surrounds the LED element, a phosphor layer which is fixed to the side wall with an adhesive layer therebetween, and is positioned above the LED element, and a metal pad as a heat dissipating member. The side wall includes an insulating base which surrounds the LED element and a metal layer which is formed on a side surface at the LED element side of the base, and is in contact with the metal pad and the adhesive layer. The adhesive layer includes a resin layer that includes a resin containing particles which have higher thermal conductivity than the resin or a layer that includes solder.
    Type: Grant
    Filed: August 8, 2014
    Date of Patent: April 25, 2017
    Assignees: Koha Co., Ltd., Tamura Corporation, National Institute for Materials Science
    Inventors: Daisuke Inomata, Hiroaki Sano, Seitaro Yoshida, Kazuo Aoki, Kiyoshi Shimamura, Encarnacion Antonia Garcia Villora
  • Patent number: 9571026
    Abstract: An inverter apparatus that includes an inverter that is interposed between an AC rotary electric machine and both a DC power supply and a smoothing capacitor and that includes a plurality of switching elements; a controller that controls driving of the plurality of switching elements; and a current sensor that detects a current flowing through a wire connecting the DC power supply and the inverter together, wherein the controller determines whether or not to stop driving of all of the plurality of switching elements based on the current detected by the current sensor while the AC rotary electric machine is caused to perform a regenerative operation of generating power.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: February 14, 2017
    Assignee: AISIN AW CO., LTD.
    Inventors: Hiromichi Agata, Kazuo Aoki, Yasushi Nakamura
  • Publication number: 20160240748
    Abstract: As one of purposes, the present invention provides: a single-crystal phosphor which can exhibit excellent properties under high-temperature conditions; and a light-emitting device in which the phosphor is used. As one embodiment, a single-crystal phosphor is provided, which has a chemical composition represented by the compositional formula: (Y1-x-y-zLuxGdyCez)3+aAl5-aO12(0?x?0.9994, 0?y?0.0669, 0.0002?z?0.0067, ?0.016?a?0.315).
    Type: Application
    Filed: October 20, 2014
    Publication date: August 18, 2016
    Applicants: KOHA CO., LTD., NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Daisuke Inomata, Kazuo Aoki, Kiyoshi Shimamura, Encarnacion Antonia Garcia Villora
  • Publication number: 20160190418
    Abstract: According to one embodiment of the present invention, the light emitting device includes an LED element, a side wall which surrounds the LED element, a phosphor layer which is fixed to the side wall with an adhesive layer therebetween, and is positioned above the LED element, and a metal pad as a heat dissipating member. The side wall includes an insulating base which surrounds the LED element and a metal layer which is formed on a side surface at the LED element side of the base, and is in contact with the metal pad and the adhesive layer. The adhesive layer includes a resin layer that includes a resin containing particles which have higher thermal conductivity than the resin or a layer that includes solder.
    Type: Application
    Filed: August 8, 2014
    Publication date: June 30, 2016
    Applicants: KOHA CO., LTD., TAMURA CORPORATION, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Daisuke INOMATA, Hiroaki SANO, Seitaro YOSHIDA, Kazuo AOKI, Kiyoshi SHIMAMURA, Encarnacion Antonia GARCIA VILLORA
  • Patent number: 9358870
    Abstract: The overall outer shape of a vehicle drive device including an inverter device is reduced in size. An input member and a rotating electrical machine are arranged side by side on a first axis, and a differential gear unit is placed on a second axis. An inverter device is located so as to overlap the differential gear unit as viewed in a radial direction, and is located between a second reference line that extends perpendicularly to a first reference line passing through the first axis and the second axis and that passes through the first axis and a third reference line that extends perpendicularly to the first reference line and that passes the second axis, as viewed in an axial direction.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: June 7, 2016
    Assignee: AISIN AW CO., LTD.
    Inventors: Yutaka Hotta, Tatsuyuki Uechi, Hiromichi Agata, Kazuo Aoki, Tatsuya Kondo, Manabu Miyazawa
  • Publication number: 20160134221
    Abstract: An inverter apparatus that includes an inverter that is interposed between an AC rotary electric machine and both a DC power supply and a smoothing capacitor and that includes a plurality of switching elements; a controller that controls driving of the plurality of switching elements; and a current sensor that detects a current flowing through a wire connecting the DC power supply and the inverter together, wherein the controller determines whether or not to stop driving of all of the plurality of switching elements based on the current detected by the current sensor while the AC rotary electric machine is caused to perform a regenerative operation of generating power.
    Type: Application
    Filed: March 10, 2014
    Publication date: May 12, 2016
    Applicant: AISIN AW CO., LTD.
    Inventors: Hiromichi Agata, Kazuo Aoki, Yasushi Nakamura
  • Publication number: 20160043289
    Abstract: Provided are a YAG-based single crystal phosphor which produces fluorescence in an unconventional color and a phosphor-containing member and a light emitting device including the single crystal phosphor. Provided is a single crystal phosphor which includes a composition represented by composition formula (Y1?a?bLuaCeb)3+cAl5?cO12 (wherein 0?a?0.9994, 0.0002?b?0.0067 and ?0.016?c?0.315), and in which CIE chromaticity coordinates x and y of an emission spectrum satisfy a relationship of ?0.4377x+0.7384?y??0.4585x+0.7504 when a peak wavelength of excitation light is 450 nm and temperature is 25° C.
    Type: Application
    Filed: October 22, 2014
    Publication date: February 11, 2016
    Applicant: National Institute for Materials Science
    Inventors: Daisuke INOMATA, Yusuke ARAI, Hiroaki SANO, Kazuo AOKI, Kiyoshi SHIMAMURA, Encarnacion Antonia GARCIA VILLORA
  • Patent number: 9245012
    Abstract: An information classification system includes a server including a knowledge base that receives classification information to be classified, conducts language analysis of the classification information to acquire and classify a plurality of keywords into elements made up of a classification target word and a related word that modifies the classification target word, and conducts a search with the related word, so as to assign a classification identification value to the information; a classification candidate extraction section that extracts the classification identification value that the knowledge base assigns to generate an automatic classification result; and a classification update section that receives the automatic classification result and corrects registered items in the knowledge base with a correction value received through a GUI for classification confirmation while referring to log data that is a processing history about automatic classification for the language analysis and the element classific
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: January 26, 2016
    Assignee: International Business Machines Corporation
    Inventors: Daisuke Maruyama, Kazuo Aoki, Takehiko Ishii
  • Publication number: 20150251531
    Abstract: The overall outer shape of a vehicle drive device including an inverter device is reduced in size. An input member and a rotating electrical machine are arranged side by side on a first axis, and a differential gear unit is placed on a second axis. An inverter device is located so as to overlap the differential gear unit as viewed in a radial direction, and is located between a second reference line that extends perpendicularly to a first reference line passing through the first axis and the second axis and that passes through the first axis and a third reference line that extends perpendicularly to the first reference line and that passes the second axis, as viewed in an axial direction.
    Type: Application
    Filed: July 18, 2013
    Publication date: September 10, 2015
    Inventors: Yutaka Hotta, Tatsuyuki Uechi, Hiromichi Agata, Kazuo Aoki, Tatsuya Kondo, Manabu Miyazawa
  • Patent number: 9117974
    Abstract: A light emitting element that includes a Ga2O3 substrate; an AlxGa1-xN buffer layer (0?×?1) formed on the Ga2O3 substrate; an n-GaN layer formed on the AlxGa1-xN buffer layer; an p-GaN layer formed on a portion of the n-GaN layer; an n-electrode formed on a portion of the n-GaN layer; and an p-electrode formed on the p-GaN layer.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: August 25, 2015
    Assignee: KOHA CO., LTD.
    Inventors: Noboru Ichinose, Kiyoshi Shimamura, Yukio Kaneko, Encarnacion Antonia Garcia Villora, Kazuo Aoki
  • Patent number: 9112123
    Abstract: [Problem] To provide a light-emitting device which does not undergo the deterioration in luminous efficiency associated with the long-term use. [Solution] A light-emitting device (1) comprises a light-emitting element (10) which can emit blue light and a phosphor (2) which is composed of a single kind of single crystal and can emit yellow light upon the irradiation with the light emitted from the light-emitting element (10) which serves as excitation light. Thus, it becomes possible to prevent the deterioration in luminous efficiency associated with the deterioration in a binder or the like compared with a light-emitting device which utilizes multiple kinds of granular phosphors, because any binder for binding phosphors to each other is not required in the light-emitting device (1).
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: August 18, 2015
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Kazuo Aoki, Makoto Watanabe, Kiyoshi Shimamura, Villora Encarnacion Antonia Garcia
  • Publication number: 20150083967
    Abstract: A phosphor (and a method for manufacturing the same, and a light-emitting device that uses this phosphor) includes single crystals including YAG crystals as a mother crystal, the quantum efficiency of the phosphor at 25° C. being 92% or higher at an excitation light wavelength of 460 nm.
    Type: Application
    Filed: April 18, 2013
    Publication date: March 26, 2015
    Inventors: Makoto Watanabe, Daisuke Inomata, Kazuo Aoki, Kiyoshi Shimamura, Encarnacion Antonia Garcia Villora