Patents by Inventor Hiromichi Koshika

Hiromichi Koshika 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).

  • Positive electrode mix
    Patent number: 9859562
    Abstract: A positive electrode mix including a solid electrolyte and a sulfur-based active material, wherein the solid electrolyte comprises a Li element or a Na element; a S element; and a halogen element selected from the group consisting of I, Br, Cl and F.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: January 2, 2018
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hiromichi Koshika, Hiroyuki Higuchi, Takayoshi Kambara
  • Positive electrode material containing a composite of sulfur and a porous conductive substance, and glass or glass ceramic particles for lithium ion batteries, and lithium ion battery
    Patent number: 9620772
    Abstract: A lithium-ion battery cathode material includes a composite of sulfur and porous carbon, and glass particles and/or glass ceramic particles that satisfy a composition represented by the following formula (1), LiaMbPcSd??(1) wherein M is B, Zn, Si, Cu, Ga, or Ge, and a to d are the compositional ratio of each element, and satisfy a:b:c:d=1 to 12:0 to 0.2:1:2 to 9.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: April 11, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Hiromichi Koshika, Hiroyuki Higuchi, Atsushi Sato
  • COMPOSITE MATERIAL
    Publication number: 20160036054
    Abstract: A composite material including an alkali metal sulfide, a conductive aid having fine pores and a solid electrolyte, wherein the alkali metal sulfide, the conductive aid and the solid electrolyte are aggregated and the half width of a peak of the alkali metal sulfide measured by X-ray diffraction is 1.0° or more.
    Type: Application
    Filed: March 26, 2014
    Publication date: February 4, 2016
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Kazuaki YANAGI, Hiroyuki HIGUCHI, Hiromichi KOSHIKA, Shinichi KUROKAWA
  • POSITIVE ELECTRODE MIX
    Publication number: 20150162614
    Abstract: A positive electrode mix including a solid electrolyte and a sulfur-based active material, wherein the solid electrolyte comprises a Li element or a Na element; a S element; and a halogen element selected from the group consisting of I, Br, Cl and F.
    Type: Application
    Filed: June 25, 2013
    Publication date: June 11, 2015
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hiromichi Koshika, Hiroyuki Higuchi, Takayoshi Kambara
  • ELECTRODE MATERIAL AND LITHIUM ION BATTERY USING SAME
    Publication number: 20140315102
    Abstract: An electrode material including at least one of sulfur and a compound that contains a sulfur atom, a conductive material, and a solid electrolyte that contains a lithium atom, a phosphorous atom and a sulfur atom, wherein the solid electrolyte has at least one of a peak at 86.1±0.6 ppm and a peak at 83.0±1.0 ppm in the solid 31PNMR spectrum, and the ratio of the phosphorous atoms contained in the peak is 62 mol % or more relative to the phosphorous atoms contained in the all peaks.
    Type: Application
    Filed: November 19, 2012
    Publication date: October 23, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Akiko Tsuji, Masaru Nakagawa, Hiromichi Koshika
  • POSITIVE ELECTRODE MATERIAL FOR LITHIUM ION BATTERIES, AND LITHIUM ION BATTERY
    Publication number: 20130302684
    Abstract: A lithium-ion battery cathode material includes a composite of sulfur and porous carbon, and glass particles and/or glass ceramic particles that satisfy a composition represented by the following formula (1), LiaMbPcSd??(1) wherein M is B, Zn, Si, Cu, Ga, or Ge, and a to d are the compositional ratio of each element, and satisfy a:b:c:d=1 to 12:0 to 0.2:1:2 to 9.
    Type: Application
    Filed: December 21, 2011
    Publication date: November 14, 2013
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Hiromichi Koshika, Hiroyuki Higuchi, Atsushi Sato