Patents by Inventor Akifumi MIZUTANI

Akifumi MIZUTANI 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).

  • Wiring substrate
    Patent number: 12219704
    Abstract: A wiring substrate includes a first conductor pattern, a second conductor pattern, an insulating layer interposed between the first and second patterns and having a through hole, and a plating conductor integrally formed with the second pattern and filling the through hole in the insulating layer such that the plating conductor is in contact with the first pattern. The through hole has an expansion part such that an opening width of the through hole on the first pattern side is widened, and the plating conductor includes a first plating film directly formed on inner wall of the through hole and a second plating film formed on the first plating film such that the minimum thickness of the first plating film in the expansion part is in the range of 55% to 95% of the minimum thickness of the first plating film in the through hole other than the expansion part.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: February 4, 2025
    Assignee: IBIDEN CO., LTD.
    Inventors: Naoki Mizutani, Akifumi Shikano
  • Battery module and battery module manufacturing method
    Patent number: 11677117
    Abstract: A battery module includes a box-shaped housing case that is open at an upper side and that does not include a hole formed in a side wall, a battery stack that includes plural battery cells stacked along a horizontal direction and that is housed inside the housing case, and a shim that is disposed between the battery stack and the housing case so as to press the battery stack along the stacking direction of the battery cells in a state in which the battery stack is housed inside the housing case.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: June 13, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Akifumi Mizutani
  • BATTERY MODULE AND BATTERY MODULE MANUFACTURING METHOD
    Publication number: 20210273287
    Abstract: A battery module includes a box-shaped housing case that is open at an upper side and that does not include a hole formed in a side wall, a battery stack that includes plural battery cells stacked along a horizontal direction and that is housed inside the housing case, and a shim that is disposed between the battery stack and the housing case so as to press the battery stack along the stacking direction of the battery cells in a state in which the battery stack is housed inside the housing case.
    Type: Application
    Filed: January 19, 2021
    Publication date: September 2, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Akifumi MIZUTANI
  • METHOD OF OBTAINING A CELL POPULATION CONTAINING CANCER STEM CELLS
    Publication number: 20150079626
    Abstract: The present invention relates to a method of obtaining a cell population containing cancer stem cells, which comprises culturing iPS cells in the presence of culture supernatant of cancer cells.
    Type: Application
    Filed: March 18, 2014
    Publication date: March 19, 2015
    Applicants: LSIP, LLC, National University Corporation Okayama University
    Inventors: Masaharu SENO, Akifumi MIZUTANI, Tomonari KASAI