Patents by Inventor Koichiro Maeda

Koichiro Maeda 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).

  • Publication number: 20230259411
    Abstract: An approach for preventing deadlocks when calling a plurality of web services in a single transaction. The approach receives a list of service definitions from a client to call as a single unit of work (UOW). The approach sorts, based on applying a predetermined ordering rule, the list into a standardized order list. The approach sends the standardized order list to the client for execution.
    Type: Application
    Filed: February 15, 2022
    Publication date: August 17, 2023
    Inventor: Koichiro Maeda
  • Patent number: 10014528
    Abstract: To provide a conductive adhesive composition for an electrochemical element electrode and used in forming a conductive adhesive layer that is highly uniform and is interposed between a collector and an electrode composition layer, being able to contribute to increased adhesion between the two. The conductive adhesive composition for an electrochemical element electrode is characterized by containing: conductive carbon; a particulate copolymer (A) containing a dibasic acid monomer unit; a particulate copolymer (B) containing an ethylenically unsaturated carboxylic acid amide derivative unit; and a dispersing agent.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: July 3, 2018
    Assignee: Zeon Corporation
    Inventors: Koichiro Maeda, Naoki Yoshida
  • Patent number: 9365954
    Abstract: The present invention provides: a polyphenylene sulfide fiber that has excellent tensile strength; and a polyphenylene sulfide fiber that decreases in toughness to a small extent even when subjected to a long-term heat treatment and has excellent tensile strength. The polyphenylene sulfide fiber according to the present invention is characterized by comprising a polyphenylene sulfide resin having a weight average molecular weight of 50000 to 80000 inclusive, having a rigid amorphous content of 50% or more, and having a crystal size of 5 nm or more in the direction of a (111) crystal plane.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: June 14, 2016
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Takeshi Sugimoto, Keiji Kaiho, Koichiro Maeda
  • Publication number: 20150013296
    Abstract: The present invention provides: a polyphenylene sulfide fiber that has excellent tensile strength; and a polyphenylene sulfide fiber that decreases in toughness to a small extent even when subjected to a long-term heat treatment and has excellent tensile strength. The polyphenylene sulfide fiber according to the present invention is characterized by comprising a polyphenylene sulfide resin having a weight average molecular weight of 50000 to 80000 inclusive, having a rigid amorphous content of 50% or more, and having a crystal size of 5 nm or more in the direction of a (111) crystal plane.
    Type: Application
    Filed: February 19, 2013
    Publication date: January 15, 2015
    Inventors: Takeshi Sugimoto, Keiji Kaiho, Koichiro Maeda
  • Patent number: 8828595
    Abstract: Disclosed is a sealing material composition for a secondary battery, which is capable of providing a safe sealing layer that exhibits excellent adhesion in the sealing portion, while preventing leakage of the electrolyte solution. Specifically disclosed is a sealing material composition for a secondary battery, which is characterized by containing a diene rubber, a thermoplastic elastomer, carbon and an organic liquid material. The sealing material composition for a secondary battery is also characterized in that the number of coarse particles contained in 3 mL of the composition is 10 or less, said coarse particles having a maximum diameter of 10 ?m or more.
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: September 9, 2014
    Assignee: Zeon Corporation
    Inventors: Koichiro Maeda, Naoki Yoshida
  • Publication number: 20140154569
    Abstract: To provide a conductive adhesive composition for an electrochemical element electrode and used in forming a conductive adhesive layer that is highly uniform and is interposed between a collector and an electrode composition layer, being able to contribute to increased adhesion between the two. The conductive adhesive composition for an electrochemical element electrode is characterized by containing: conductive carbon; a particulate copolymer (A) containing a dibasic acid monomer unit; a particulate copolymer (B) containing an ethylenically unsaturated carboxylic acid amide derivative unit; and a dispersing agent.
    Type: Application
    Filed: August 3, 2012
    Publication date: June 5, 2014
    Applicant: ZEON CORPORATION
    Inventors: Koichiro Maeda, Naoki Yoshida
  • Publication number: 20130122358
    Abstract: Disclosed is a sealing material composition for a secondary battery, which is capable of providing a safe sealing layer that exhibits excellent adhesion in the sealing portion, while preventing leakage of the electrolyte solution. Specifically disclosed is a sealing material composition for a secondary battery, which is characterized by containing a diene rubber, a thermoplastic elastomer, carbon and an organic liquid material. The sealing material composition for a secondary battery is also characterized in that the number of coarse particles contained in 3 mL of the composition is 10 or less, said coarse particles having a maximum diameter of 10 ?m or more.
    Type: Application
    Filed: May 17, 2011
    Publication date: May 16, 2013
    Applicant: ZEON CORPORATION
    Inventors: Koichiro Maeda, Naoki Yoshida
  • Patent number: 7052629
    Abstract: A binder for battery comprising composite polymer particles in which two or more polymers having different chemical structures form a heterogeneous phase structure. Preferably, said two or more polymers include two polymers having a glass transition temperature (Tg) different from each other by 5° C. or more. When a slurry prepared by mixing the binder with a liquid material and an active material is used for the production of an electrode for a secondary battery, especially, a lithium secondary battery, the resulting battery exhibits an improved performance because the slurry imparts a well-balanced binding power and a binding durability.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: May 30, 2006
    Assignee: Zeon Corporation
    Inventors: Koichiro Maeda, Haruhisa Yamamoto
  • Patent number: 6652773
    Abstract: A polymer dispersion composition obtained by dispersing an electrode active material and a polymer having a gel content of 50% or more in an organic dispersion medium of which boiling point at 760 mmHg is 80° C. or above. The composition is successfully usable as, for instance, a binder composition for batteries, and the battery produced therefrom is high in initial capacity and small in the drop of capacity.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: November 25, 2003
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Koichiro Maeda, Toshihiro Inoue, Haruhisa Yamamoto, Keiko Imai
  • Publication number: 20030113626
    Abstract: A binder for battery comprising composite polymer particles in which two or more polymers having different chemical structures form a heterogeneous phase structure. Preferably, said two or more polymers include two polymers having a glass transition temperature (Tg) different from each other by 5° C. or more. When a slurry prepared by mixing the binder with a liquid material and an active material is used for the production of an electrode for a secondary battery, especially, a lithium secondary battery, the resulting battery exhibits an improved performance because the slurry imparts a well-balanced binding power and a binding durability.
    Type: Application
    Filed: January 9, 2003
    Publication date: June 19, 2003
    Applicant: NIPPON ZEON CO., LTD.
    Inventors: Koichiro Maeda, Haruhisa Yamamoto
  • Publication number: 20020068783
    Abstract: This invention provides a polymer dispersion composition obtained by dispersing a polymer having a gel content of 50% or more in an organic dispersion medium of which boiling point at 760 Kgf/cm3 is 80° C. or above. Said composition is successfully usable as, for instance, a binder composition for batteries, and the battery produced therefrom is high in initial capacity and small in the drop of capacity.
    Type: Application
    Filed: December 3, 2001
    Publication date: June 6, 2002
    Applicant: NIPPON ZEON COMPANY, LTD
    Inventors: koichiro Maeda, Toshihiro Inoue, Haruhisa Yamamoto, Keiko Imai
  • Patent number: 6287723
    Abstract: An alkaline secondary battery comprising an electrolyte such as aqueous solution of potassium hydroxide, at least one cathode electrode, at least one anode electrode having an anode active material layer, and a separator such as non-woven fabric between the anode electrode and the cathode electrode, in which the anode active material layer containing an anode active material such as a hydridable alloy or a cadmium alloy, and an anode binder which includes a nonionic polymer produced by emulsion polymerization of a nonionic monomer in the presence of a nonionic surfactant, and in which the electrolyte essentially surrounds the cathode electrode and the anode electrode.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: September 11, 2001
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Koichiro Maeda, Toshihiro Inoue, Kenji Wada, Hidekazu Haneda, Haruhisa Yamamoto
  • Patent number: 6005765
    Abstract: A conductive rubber film having a volume resistivity in the direction perpendicular to the film surface of 0.1-5 .OMEGA.cm is obtained by blending 100 parts by weight of a rubber component comprising rubber with an iodine value of 30 or less (e.g. hydrogenated acrylonitrile butadiene copolymer rubber) with 5 to 100 parts by weight of conductive carbon having a specific surface area of 20 to 2000 m.sup.2 /g, and forming the blend into a film of 0.01-0.2 mm thick by casting by the use of a solvent (e.g. methyl isobutyl ketone). The film is made into collectors and an electric double layer capacitor using an aqueous electrolyte is produced by using the collectors. This capacitor has a low internal resistance, namely, it can be obtained as a high-output capacitor.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: December 21, 1999
    Assignees: Nippon Zeon Co., Ltd., NEC Corporation
    Inventors: Koichiro Maeda, Yukari Kibi