Patents by Inventor Miyuki KOJIMA

Miyuki KOJIMA 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: 10964974
    Abstract: A solid electrolyte is constituted by lithium phosphorus oxynitride (LiPON). A multiplication value obtained by multiplying a ratio of a peak intensity of nitrogen atoms having a single bond with one P atom and having a double bond with another P atom to a peak intensity of an N2 state in a Raman spectroscopy spectrum by a ratio of a content amount of N atoms to a content amount of P atoms is greater than or equal to 0.40.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: March 30, 2021
    Assignee: NGK Insulators, Ltd.
    Inventors: Miyuki Kojima, Yosuke Sato, Yuji Katsuda, Yoshiaki Nagasawa, Kazuyuki Kaigawa
  • Publication number: 20210009434
    Abstract: A lithium ion conductive material has a composition formula of Lia(OH)bFcBr, where 1.8?a?2.3, b=a?c?1, 0.01?c?0.11, and includes an antiperovskite-type crystal phase. Preferably, the lithium ion conductive material further includes a layered antiperovskite-type crystal phase. More preferably, 0?B/(A+B)?0.2 is satisfied, where A is the peak intensity in the vicinity of 2?=31.2° in the X-ray diffractometry using Cu-K? ray and B is the peak intensity in the vicinity of 2?=30.2°.
    Type: Application
    Filed: September 16, 2020
    Publication date: January 14, 2021
    Applicant: NGK INSULATORS, LTD.
    Inventors: Miyuki KOJIMA, Keita MIYANISHI, Yosuke SATO, Yuji KATSUDA
  • Publication number: 20200280047
    Abstract: There is provided an all-solid-state lithium battery including: a positive-electrode plate composed of a lithium complex oxide sintered body having a layered rock-salt structure; a solid electrolyte layer composed of a lithium-ion-conductive antiperovskite material; a negative-electrode plate containing Ti and permitting intercalation and deintercalation of lithium ions at 0.4 (vs. Li/Li+) V or more; a positive-electrode current collecting layer provided on a face, remote from the solid electrolyte layer, of the positive-electrode plate; a negative-electrode current collecting layer provided on a face, remote from the solid electrolyte layer, of the negative-electrode plate; a positive-electrode covering metal membrane provided at an interface between the positive-electrode plate and the solid electrolyte layer; and a negative-electrode covering metal membrane provided at an interface between the negative-electrode plate and the solid electrolyte layer.
    Type: Application
    Filed: May 18, 2020
    Publication date: September 3, 2020
    Applicant: NGK INSULATORS, LTD.
    Inventors: Kei TANAKA, Miyuki KOJIMA, Keita MIYANISHI, Yosuke SATO, Yuji KATSUDA, Yukihisa TAKEUCHI
  • Publication number: 20190006710
    Abstract: A solid electrolyte is constituted by lithium phosphorus oxynitride (LiPON). A multiplication value obtained by multiplying a ratio of a peak intensity of nitrogen atoms having a single bond with one P atom and having a double bond with another P atom to a peak intensity of an N2 state in a Raman spectroscopy spectrum by a ratio of a content amount of N atoms to a content amount of P atoms is greater than or equal to 0.40.
    Type: Application
    Filed: September 10, 2018
    Publication date: January 3, 2019
    Applicant: NGK INSULATORS, LTD.
    Inventors: Miyuki KOJIMA, Yosuke SATO, Yuji KATSUDA, Yoshiaki NAGASAWA, Kazuyuki KAIGAWA
  • Patent number: 9339799
    Abstract: To provide a honeycomb structure capable of using as a catalyst carrier, which functions as a heater, and where a bonding layer is hard to break and an electrical resistance value is hard to rise; including a honeycomb segment bonded body where honeycomb segments are bonded by bonding layer, and a pair of electrode members disposed on a side surface of the bonded body, the electrode members is formed into a band shape, and in a cross section perpendicular to the cell extending direction, one electrode member is disposed on an opposite side across the center of the bonded body to another electrode member, and in at least a part of the bonding layer, inorganic fibers made of ?-SiC and a metal silicide are included in a porous body where silicon carbide are bound with silicon in a state where pores are held among the particles.
    Type: Grant
    Filed: March 21, 2014
    Date of Patent: May 17, 2016
    Assignee: NGK Insulators, Ltd.
    Inventors: Yoshio Kikuchi, Hiroharu Kobayashi, Kenichi Hidaka, Miyuki Kojima, Yoshimasa Kobayashi
  • Publication number: 20140296055
    Abstract: To provide a honeycomb structure capable of using as a catalyst carrier, which functions as a heater, and where a bonding layer is hard to break and an electrical resistance value is hard to rise; including a honeycomb segment bonded body where honeycomb segments are bonded by bonding layer, and a pair of electrode members disposed on a side surface of the bonded body, the electrode members is formed into a band shape, and in a cross section perpendicular to the cell extending direction, one electrode member is disposed on an opposite side across the center of the bonded body to another electrode member, and in at least a part of the bonding layer, inorganic fibers made of ?-SiC and a metal silicide are included in a porous body where silicon carbide are bound with silicon in a state where pores are held among the particles.
    Type: Application
    Filed: March 21, 2014
    Publication date: October 2, 2014
    Applicant: NGK Insulators, Ltd.
    Inventors: Yoshio KIKUCHI, Hiroharu KOBAYASHI, Kenichi HIDAKA, Miyuki KOJIMA, Yoshimasa KOBAYASHI