Patents by Inventor Koichi Ui

Koichi Ui 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: 11035047
    Abstract: The present disclosure provides a high-quality electrolytic aluminum foil which includes a smooth surface and an end portion containing no dendritic deposit, and a method for producing the same which can obtain the electrolytic aluminum foil at a high collection rate. An electrolytic aluminum foil of the present disclosure includes a surface having an arithmetic average height (Sa) of 0.15 ?m or less, wherein when, for a size of a crystal grain present in a cross-sectional surface, a first maximum dimension as measured in a thickness direction of the cross-sectional surface is x (?m), and a second maximum dimension as measured in a width direction of the cross-sectional surface is y (?m), x and y satisfy (x+y)/2?3 ?m and 1?x/y?4.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: June 15, 2021
    Assignee: UACJ Corporation
    Inventors: Yukio Honkawa, Junji Nunomura, Yoichi Kojima, Koichi Ui
  • Publication number: 20190276945
    Abstract: The present disclosure provides a high-quality electrolytic aluminum foil which includes a smooth surface and an end portion containing no dendritic deposit, and a method for producing the same which can obtain the electrolytic aluminum foil at a high collection rate. An electrolytic aluminum foil of the present disclosure includes a surface having an arithmetic average height (Sa) of 0.15 ?m or less, wherein when, for a size of a crystal grain present in a cross-sectional surface, a first maximum dimension as measured in a thickness direction of the cross-sectional surface is x (?m), and a second maximum dimension as measured in a width direction of the cross-sectional surface is y (?m), x and y satisfy (x+y)/2?3 ?m and 1?x/y?4.
    Type: Application
    Filed: May 21, 2019
    Publication date: September 12, 2019
    Applicant: UACJ CORPORATION
    Inventors: Yukio Honkawa, Junji Nunomura, Yoichi Kojima, Koichi Ui
  • Patent number: 10276863
    Abstract: A composite material including a carbon-containing material and a non-stoichiometric titanium compound shown by a chemical formula of Li4+xTi5?xO12, where x is in a range of 0<x<0.30, the composite material including at least one composite particle that has a core portion including the non-stoichiometric titanium compound and a mixed layer formed on a surface of the core portion, the mixed layer including non-stoichiometric titanium compound and carbon, and having an atomic ratio of titanium and carbon in a range of Ti/C=1/50 or more.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: April 30, 2019
    Assignees: KURARAY CO., LTD., INCORPORATED NATIONAL UNIVERSITY IWATE UNIVERSITY
    Inventors: Takashi Wakui, Naoki Fujiwara, Yuhi Shimazumi, Yoshio Yamamoto, Koichi Ui, Yoshihiro Kadoma
  • Publication number: 20160164083
    Abstract: A composite material including a carbon-containing material and a non-stoichiometric titanium compound shown by a chemical formula of Li4+xTi5?xO12, where x is in a range of 0<x<0.30, the composite material including at least one composite particle that has a core portion including the non-stoichiometric titanium compound and a mixed layer formed on a surface of the core portion, the mixed layer including non-stoichiometric titanium compound and carbon, and having an atomic ratio of titanium and carbon in a range of Ti/C=1/50 or more.
    Type: Application
    Filed: December 9, 2015
    Publication date: June 9, 2016
    Applicants: Kuraray Co., Ltd., Incorporated National University Iwate University
    Inventors: Takashi WAKUI, Naoki Fujiwara, Yuhi Shimazumi, Yoshio Yamamoto, Koichi UI, Yoshihiro Kadoma
  • Publication number: 20090277793
    Abstract: [Object] To provide a nanocarbon/aluminum composite material having high strength and electrical conductivity for suitable use in a lead wire, a heat exchanger and an automotive part and a process for producing the nanocarbon/aluminum composite material. [Solution] There is provided a plating liquid for nanocarbon/aluminum composite production, comprising an aluminum halide, nanocarbon and 1,3-dialkylimidazolium halide and/or the like, wherein the molar ratio of the aluminum halide to the 1,3-dialkylimidazolium halide and/or the like is in the range of 20:80 to 80:20 and the 1,3-dialkylimidazolium halide and/or the like has an alkyl group with a carbon number of 1 to 12. There are also provided a nanocarbon/aluminum composite production process comprising forming a plating film on a substrate surface by electrolysis of the plating liquid in a dry, oxygen-free atmosphere with the passage of a direct current etc. under the electrolysis conditions of a bath temperature of 0 to 300° C. and a current density of 0.
    Type: Application
    Filed: June 16, 2006
    Publication date: November 12, 2009
    Inventors: Atsushi Ehira, Ryo Murakami, Nobuyuki Koura, Koichi Ui, Takashi Yatsushiro
  • Patent number: 7241534
    Abstract: A lithium polymer secondary battery comprising: a negative electrode including a carbonaceous material, as an active material, obtainable by attaching or covering an amorphous carbon on the surface of graphite particle; an electrolyte layer; and a positive electrode having at least a metal oxide containing lithium as an active material, wherein the electrolyte layer comprising: a polymer containing a unit derived from vinylene carbonate; an organic solvent; and lithium salt.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: July 10, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Naoto Nishimura, Masako Kitagawa, Motoaki Nishijima, Naoto Torata, Koichi Ui
  • Publication number: 20040126668
    Abstract: A lithium polymer secondary battery comprising: a negative electrode including a carbonaceous material, as an active material, obtainable by attaching or covering an amorphous carbon on the surface of graphite particle; an electrolyte layer; and a positive electrode having at least a metal oxide containing lithium as an active material, wherein the electrolyte layer comprising: a polymer containing a unit derived from vinylene carbonate; an organic solvent; and lithium salt.
    Type: Application
    Filed: February 24, 2004
    Publication date: July 1, 2004
    Inventors: Naoto Nishimura, Masako Kitagawa, Motoaki Nishijima, Naoto Torata, Koichi Ui
  • Publication number: 20020053395
    Abstract: A titanium oxide film containing a dopant element formed on a silicon substrate by supplying a titanium compound for forming the titanium oxide film and a compound of a dopant element for a silicon semiconductor in a gaseous state to a surface of the silicon substrate heated to a predetermined temperature, wherein the concentration of the dopant element in the titanium oxide film becomes progressively higher from the surface of the titanium oxide film to the surface of the silicon substrate.
    Type: Application
    Filed: August 17, 2001
    Publication date: May 9, 2002
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Koichi Ui, Satoshi Okamoto, Tohru Nunoi
  • Patent number: 6297134
    Abstract: A titanium oxide film containing a dopant element formed on a silicon substrate by supplying a titanium compound for forming the titanium oxide film and a compound of a dopant element for a silicon semiconductor in a gaseous state to a surface of the silicon substrate heated to a predetermined temperature, wherein the concentration of the dopant element in the titanium oxide film becomes progressively higher from the surface of the titanium oxide film to the surface of the silicon substrate.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: October 2, 2001
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Koichi Ui, Satoshi Okamoto, Tohru Nunoi