Patents by Inventor Naomichi Miyakawa

Naomichi Miyakawa 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: 10446783
    Abstract: A light-emitting device includes a pair of first electrodes arranged separated from and opposing each other on a first surface of a substrate; a light-emitting layer arranged on at least one of the first electrodes; a second electrode arranged on the light-emitting layer; and a bridge layer connecting the first electrodes. The bridge layer is formed of a material having a resistance that falls within a range of 100 k? to 100 M?.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: October 15, 2019
    Assignees: JAPAN SCIENCE AND TECHNOLOGY AGENCY, TOKYO INSTITUTE OF TECHNOLOGY, Asahi Glass Company, Limited
    Inventors: Hideo Hosono, Yoshitake Toda, Nobuhiro Nakamura, Naomichi Miyakawa, Satoru Watanabe, Toshinari Watanabe
  • Patent number: 10407604
    Abstract: Provided is a heat-dissipating resin composition including: a rubber material having an average emissivity of 80% or higher in a wavelength range from 5 ?m to 20 ?m; and a filler having a grain diameter of 15 ?m or smaller and an aspect ratio of 3 to 10, wherein the heat-dissipating resin composition has an emissivity of 90% or higher in the wavelength range from 5 ?m to 20 ?m.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: September 10, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Honami Nawa, Hirohisa Hino, Arata Kishi, Naomichi Ohashi, Yasuhiro Suzuki, Hidenori Miyakawa
  • Publication number: 20190172605
    Abstract: Disclosed herein is an amorphous C12A7 electride thin film which has an electron density of greater than or equal to 2.0×1018 cm?3 and less than or equal to 2.3×1021 cm?3, and exhibits a light absorption at a photon energy position of 4.6 eV. Also disclosed herein is an amorphous thin film which is fabricated using a target made of a crystalline C12A7 electride, and containing an electride of an amorphous solid material includig calcium, aluminum, and oxygen, in which an Al/Ca molar ratio of the thin film is 0.5 to 4.7.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 6, 2019
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hideo HOSONO, Yoshitake TODA, Katsuro HAYASHI, Setsuro ITO, Satoru WATANABE, Naomichi MIYAKAWA, Toshinari WATANABE, Kazuhiro ITO
  • Patent number: 10249402
    Abstract: A C12A7 electride thin film fabrication method includes a step of forming an amorphous C12A7 electride thin film on a substrate by vapor deposition under an atmosphere with an oxygen partial pressure of less than 0.1 Pa using a target made of a crystalline C12A7 electride having an electron density within a range of 2.0×1018 cm?3 to 2.3×1021 cm?3.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: April 2, 2019
    Assignees: TOKYO INSTITUTE OF TECHNOLOGY, AGC Inc., JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hideo Hosono, Yoshitake Toda, Katsuro Hayashi, Setsuro Ito, Satoru Watanabe, Naomichi Miyakawa, Toshinari Watanabe, Kazuhiro Ito
  • Publication number: 20190058142
    Abstract: A thin film of metal oxide includes zinc (Zn); tin (Sn); silicon (Si); and oxygen (O). In terms of oxide, based on 100 mol % of total of oxides of the thin film, SnO2 is greater than 15 mol % but less than or equal to 95 mol %.
    Type: Application
    Filed: October 24, 2018
    Publication date: February 21, 2019
    Applicants: JAPAN SCIENCE AND TECHNOLOGY AGENCY, TOKYO INSTITUTE OF TECHNOLOGY, AGC Inc.
    Inventors: Hideo HOSONO, Yoshitake TODA, Satoru WATANABE, Toshinari WATANABE, Kazuhiro ITO, Naomichi MIYAKAWA, Nobuhiro NAKAMURA
  • Publication number: 20180374959
    Abstract: An oxide semiconductor compound includes gallium; and oxygen. An optical band gap is 3.4 eV or more. An electron Hall mobility obtained by performing a Hall measurement at a temperature of 300 K is 3 cm2/Vs or more.
    Type: Application
    Filed: August 30, 2018
    Publication date: December 27, 2018
    Applicants: TOKYO INSTITUTE OF TECHNOLOGY, AGC Inc.
    Inventors: Hideo HOSONO, Toshio KAMIYA, Hideya KUMOMI, Junghwan KIM, Nobuhiro NAKAMURA, Satoru WATANABE, Naomichi MIYAKAWA
  • Patent number: 10128457
    Abstract: A light-emitting device having a light-extraction structure includes: a first electrode; a second electrode; a light-emitting layer disposed between the first electrode and the second electrode; and an inorganic-material-based layer disposed between the first electrode and the light-emitting layer or between the second electrode and the light-emitting layer. The inorganic-material-based layer has thickness of 100 nm or more and has conductivity of 10?6 ??1 cm?1 or more and 100 ??1 cm?1 or less.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: November 13, 2018
    Assignee: AGC Inc.
    Inventors: Nobuhiro Nakamura, Naomichi Miyakawa, Satoru Watanabe, Toshinari Watanabe
  • Patent number: 9879338
    Abstract: A method of manufacturing an electrically conductive mayenite compound, includes preparing a body to be processed including a mayenite compound; and placing the body to be processed in the presence of carbon monoxide gas and aluminum vapor supplied from an aluminum source without being in contact with the aluminum source and retaining the body to be processed at a temperature range of 1080° C. to 1450° C. under a reducing atmosphere.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: January 30, 2018
    Assignee: Asahi Glass Company, Limited
    Inventors: Kazuhiro Ito, Satoru Watanabe, Toshinari Watanabe, Naomichi Miyakawa
  • Patent number: 9881773
    Abstract: A production method of an electroconductive mayenite compound having an electron density greater than or equal to 5×1020 cm?3 includes preparing an object of processing containing a mayenite compound or a precursor of a mayenite compound, placing aluminum foil on at least part of a surface of the object of processing, and retaining the object of processing at temperatures falling within the range of 1080° C. to 1450° C. in a low oxygen partial pressure atmosphere.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: January 30, 2018
    Assignee: Asahi Glass Company, Limited
    Inventors: Kazuhiro Ito, Satoru Watanabe, Toshinari Watanabe, Naomichi Miyakawa
  • Publication number: 20170186989
    Abstract: A light-emitting device includes a pair of first electrodes arranged separated from and opposing each other on a first surface of a substrate; a light-emitting layer arranged on at least one of the first electrodes; a second electrode arranged on the light-emitting layer; and a bridge layer connecting the first electrodes. The bridge layer is formed of a material having a resistance that falls within a range of 100 k? to 100 M?.
    Type: Application
    Filed: March 16, 2017
    Publication date: June 29, 2017
    Applicants: JAPAN SCIENCE AND TECHNOLOGY AGENCY, TOKYO INSTITUTE OF TECHNOLOGY, Asahi Glass Company, Limited
    Inventors: Hideo HOSONO, Yoshitake TODA, Nobuhiro NAKAMURA, Naomichi MIYAKAWA, Satoru WATANABE, Toshinari WATANABE
  • Publication number: 20170186990
    Abstract: A light-emitting device having a light-extraction structure includes: a first electrode; a second electrode; a light-emitting layer disposed between the first electrode and the second electrode; and an inorganic-material-based layer disposed between the first electrode and the light-emitting layer or between the second electrode and the light-emitting layer. The inorganic-material-based layer has thickness of 100 nm or more and has conductivity of 10?6 ??1cm?1 or more and 100 ??1cm?1 or less.
    Type: Application
    Filed: March 15, 2017
    Publication date: June 29, 2017
    Applicant: Asahi Glass Company, Limited
    Inventors: Nobuhiro NAKAMURA, Naomichi MIYAKAWA, Satoru WATANABE, Toshinari WATANABE
  • Publication number: 20170186984
    Abstract: A thin film of metal oxide includes zinc (Zn); tin (Sn); silicon (Si); and oxygen (O). In terms of oxide, based on 100 mol % of total of oxides of the thin film, SnO2 is greater than 15 mol % but less than or equal to 95 mol %.
    Type: Application
    Filed: March 16, 2017
    Publication date: June 29, 2017
    Applicants: JAPAN SCIENCE AND TECHNOLOGY AGENCY, TOKYO INSTITUTE OF TECHNOLOGY, Asahi Glass Company, Limited
    Inventors: Hideo HOSONO, Yoshitake TODA, Satoru WATANABE, Toshinari WATANABE, Kazuhiro ITO, Naomichi MIYAKAWA, Nobuhiro NAKAMURA
  • Publication number: 20160285027
    Abstract: A thin film of amorphous metal oxide includes zinc (Zn), silicon (Si) and oxygen (O), the atomic ratio of Zn/(Zn+Si) being 0.30 to 0.95.
    Type: Application
    Filed: June 10, 2016
    Publication date: September 29, 2016
    Applicants: JAPAN SCIENCE AND TECHNOLOGY AGENCY, TOKYO INSTITUTE OF TECHNOLOGY, ASAHI GLASS COMPANY, LIMITED
    Inventors: HIDEO HOSONO, YOSHITAKE TODA, TOSHINARI WATANABE, NAOMICHI MIYAKAWA, KAZUHIRO ITO, SATORU WATANABE, AKIRA MITSUI, KAZUTO OHKOSHI
  • Patent number: 9428827
    Abstract: A method of manufacturing an electrically conductive mayenite compound, includes (a) preparing a body to be processed, the body to be processed including a mayenite compound or a precursor of a mayenite compound; and (b) performing a heat treatment on the body to be processed under a reducing atmosphere including an aluminum compound and carbon monoxide (CO) gas within a range of 1080° C. to 1450° C., the aluminum compound being a compound that emits aluminum oxide gas during the heat treatment on the body to be processed.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: August 30, 2016
    Assignee: Asahi Glass Company, Limited
    Inventors: Kazuhiro Ito, Satoru Watanabe, Toshinari Watanabe, Naomichi Miyakawa
  • Patent number: 9368739
    Abstract: A light emitting device including an organic electroluminescence element is provided. The light emitting device may be a display device or a lighting device. The organic electroluminescence element includes an anode, a light emitting layer, and a cathode that are arranged in this order. An electron injection layer is arranged between the light emitting layer and the cathode. The electron injection layer is made of an amorphous C12A7 electride.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: June 14, 2016
    Assignees: TOKYO INSTITUTE OF TECHNOLOGY, Asahi Glass Company, Limited
    Inventors: Hideo Hosono, Yoshitake Toda, Setsuro Ito, Satoru Watanabe, Naomichi Miyakawa, Kazuhiro Ito, Toshinari Watanabe
  • Publication number: 20160111263
    Abstract: There is provided a sputtering target for forming an amorphous film, the sputtering target including an electrically conductive mayenite compound, wherein electron density of the electrically conductive mayenite compound is greater than or equal to 3×1020 cm?3, and wherein the electrically conductive mayenite compound includes one or more elements that are selected from a group including C, Fe, Na, and Zr.
    Type: Application
    Filed: December 22, 2015
    Publication date: April 21, 2016
    Applicant: Asahi Glass Company, Limited
    Inventors: Kazuhiro ITO, Satoru WATANABE, Naomichi MIYAKAWA, Toshinari WATANABE, Akira MITSUI
  • Publication number: 20150184281
    Abstract: A method of manufacturing an electrically conductive mayenite compound, includes (a) preparing a body to be processed, the body to be processed including a mayenite compound or a precursor of a mayenite compound; and (b) performing a heat treatment on the body to be processed under a reducing atmosphere including an aluminum compound and carbon monoxide (CO) gas within a range of 1080° C. to 1450° C., the aluminum compound being a compound that emits aluminum oxide gas during the heat treatment on the body to be processed.
    Type: Application
    Filed: March 17, 2015
    Publication date: July 2, 2015
    Applicant: Asahi Glass Company, Limited
    Inventors: Kazuhiro ITO, Satoru WATANABE, Toshinari WATANABE, Naomichi MIYAKAWA
  • Publication number: 20150184282
    Abstract: A method of manufacturing an electrically conductive mayenite compound, includes preparing a body to be processed including a mayenite compound; and placing the body to be processed in the presence of carbon monoxide gas and aluminum vapor supplied from an aluminum source without being in contact with the aluminum source and retaining the body to be processed at a temperature range of 1080° C. to 1450° C. under a reducing atmosphere.
    Type: Application
    Filed: March 17, 2015
    Publication date: July 2, 2015
    Applicant: Asahi Glass Company, Limited
    Inventors: Kazuhiro ITO, Satoru Watanabe, Toshinari Watanabe, Naomichi Miyakawa
  • Publication number: 20150137103
    Abstract: A light emitting device including an organic electroluminescence element is provided. The light emitting device may be a display device or a lighting device. The organic electroluminescence element includes an anode, a light emitting layer, and a cathode that are arranged in this order. An electron injection layer is arranged between the light emitting layer and the cathode. The electron injection layer is made of an amorphous C12A7 electride.
    Type: Application
    Filed: December 11, 2014
    Publication date: May 21, 2015
    Applicants: TOKYO INSTITUTE OF TECHNOLOGY, ASAHI GLASS COMPANY, LIMITED
    Inventors: Hideo Hosono, Yoshitake TODA, Setsuro ITO, Satoru WATANABE, Naomichi MIYAKAWA, Kazuhiro ITO, Toshinari WATANABE
  • Publication number: 20150136593
    Abstract: A production method of an electroconductive mayenite compound having an electron density greater than or equal to 5×1020 cm?3 includes preparing an object of processing containing a mayenite compound or a precursor of a mayenite compound, placing aluminum foil on at least part of a surface of the object of processing, and retaining the object of processing at temperatures falling within the range of 1080° C. to 1450° C. in a low oxygen partial pressure atmosphere.
    Type: Application
    Filed: December 11, 2014
    Publication date: May 21, 2015
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Kazuhiro ITO, Satoru WATANABE, Toshinari WATANABE, Naomichi MIYAKAWA