Patents by Inventor Shigenori KOISHI

Shigenori KOISHI 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).

  • Negative-electrode active material, production process for the same and electric storage apparatus
    Patent number: 10230100
    Abstract: A negative-electrode active material is used for a negative electrode, the negative-electrode active material including: agglomerated particles including nanometer-size silicon produced by heat treating a lamellar polysilane having a structure in which multiple six-membered rings constituted of a silicon atom are disposed one after another, and expressed by a compositional formula, (SiH)n; and a carbon layer including amorphous carbon, and covering at least some of the agglomerated particles to be composited therewith. An electric storage apparatus including the same is not only able to reduce the irreversible capacity, but also able to inhibit the generation of “SEI.
    Type: Grant
    Filed: December 25, 2013
    Date of Patent: March 12, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yusuke Sugiyama, Masataka Nakanishi, Nobuhiro Goda, Tomohiro Niimi, Masakazu Murase, Takeshi Kondo, Shigenori Koishi, Hiroshi Hirate, Yoshihiro Nakagaki, Mutsumi Takahashi
  • Production process for nanometer-size silicon material
    Patent number: 9527748
    Abstract: A nanometer-size silicon material produced by heat treating a lamellar polysilane exhibits Raman-shift peaks existing at 341±10 cm?1, 360±10 cm?1, 498±10 cm?1, 638±10 cm?1, and 734±10 cm?1 in a Raman spectrum, has a large specific surface area, and has a reduced SiO content.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: December 27, 2016
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yusuke Sugiyama, Masataka Nakanishi, Takashi Mori, Masakazu Murase, Tomohiro Niimi, Yoshihiro Nakagaki, Shigenori Koishi, Hiroshi Hirate
  • NEGATIVE-ELECTRODE ACTIVE MATERIAL, PRODUCTION PROCESS FOR THE SAME AND ELECTRIC STORAGE APPARATUS
    Publication number: 20150349337
    Abstract: A negative-electrode active material is used for a negative electrode, the negative-electrode active material including: agglomerated particles including nanometer-size silicon produced by heat treating a lamellar polysilane having a structure in which multiple six-membered rings constituted of a silicon atom are disposed one after another, and expressed by a compositional formula, (SiH)n; and a carbon layer including amorphous carbon, and covering at least some of the agglomerated particles to be composited therewith. An electric storage apparatus including the same is not only able to reduce the irreversible capacity, but also able to inhibit the generation of “SEI.
    Type: Application
    Filed: December 25, 2013
    Publication date: December 3, 2015
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yusuke SUGIYAMA, Masataka NAKANISHI, Nobuhiro GODA, Tomohiro NIIMI, Masakazu MURASE, Takeshi KONDO, Shigenori KOISHI, Hiroshi HIRATE, Yoshihiro NAKAGAKI, Mutsumi TAKAHASHI
  • NANOMETER-SIZE SILICON MATERIAL AND NEGATIVE-ELECTRODE ACTIVE MATERIAL, AND PRODUCTION PROCESS FOR THE SAME AND ELECTRIC STORAGE APPARATUS
    Publication number: 20150307362
    Abstract: A nanometer-size silicon material produced by heat treating a lamellar polysilane exhibits Raman-shift peaks existing at 341±10 cm?1, 360±10 cm?1, 498±10 cm?1, 638±10 cm?1, and 734±10 cm?1 in a Raman spectrum, has a large specific surface area, and has a reduced SiO content.
    Type: Application
    Filed: November 18, 2013
    Publication date: October 29, 2015
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Yusuke SUGIYAMA, Masataka NAKANISHI, Takashi MORI, Masakazu MURASE, Tomohiro NIIMI, Yoshihiro NAKAGAKI, Shigenori KOISHI, Hiroshi HIRATE