Patents by Inventor Seiji Tainaka

Seiji Tainaka 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).

  • Core for a pillow
    Patent number: D971424
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: November 29, 2022
    Assignee: NISHIKAWA Co., Ltd.
    Inventors: Shinano Yamada, Seiji Tainaka
  • Core for a pillow
    Patent number: D971425
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: November 29, 2022
    Assignee: NISHIKAWA Co., Ltd.
    Inventors: Shinano Yamada, Seiji Tainaka
  • Core for a pillow
    Patent number: D978573
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: February 21, 2023
    Assignee: NISHIKAWA Co., Ltd.
    Inventors: Seiji Tainaka, Shinano Yamada
  • Core for a pillow
    Patent number: D979985
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: March 7, 2023
    Assignee: NISHIKAWA Co., Ltd.
    Inventors: Shinano Yamada, Seiji Tainaka