Patents by Inventor Koh HATANAKA

Koh HATANAKA 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).

  • Battery manufacturing method
    Patent number: 11658343
    Abstract: A battery manufacturing method includes forming a unit cell having a positive electrode that is obtained by a positive electrode active material layer containing an electrolytic solution being disposed on a positive electrode current collector, a negative electrode that is obtained by a negative electrode active material layer containing an electrolytic solution being disposed on a negative electrode current collector, and a separator interposed between the positive and negative electrodes. Heat sealing a seal part that is disposed at an outer peripheral portion of the unit cell. Cooling the outer peripheral portion of the unit cell by using a cooling medium after carrying out the heat sealing of the seal part. The method is performed such that the positive electrode and the negative electrode are formed without an application film being subjected to a drying process performed through heating.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: May 23, 2023
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kazuyuki Yoda, Tomohiro Kaburagi, Eiji Minegishi, Koh Hatanaka, Takuya Sakurai, Masanori Shimada, Yusuke Emori, Yuichiro Yokoyama
  • BATTERY MANUFACTURING METHOD
    Publication number: 20210005934
    Abstract: A battery manufacturing method includes forming a unit cell having a positive electrode that is obtained by a positive electrode active material layer containing an electrolytic solution being disposed on a positive electrode current collector, a negative electrode that is obtained by a negative electrode active material layer containing an electrolytic solution being disposed on a negative electrode current collector, and a separator interposed between the positive and negative electrodes. Heat sealing a seal part that is disposed at an outer peripheral portion of the unit cell. Cooling the outer peripheral portion of the unit cell by using a cooling medium after carrying out the heat sealing of the seal part. The method is performed such that the positive electrode and the negative electrode are formed without an application film being subjected to a drying process performed through heating.
    Type: Application
    Filed: March 20, 2019
    Publication date: January 7, 2021
    Inventors: Kazuyuki YODA, Tomohiro KABURAGI, Eiji MINEGISHI, Koh HATANAKA, Takuya SAKURAI, Masanori SHIMADA, Yusuke EMORI, Yuichiro YOKOYAMA