Patents by Inventor Spencer Fumio Yamada

Spencer Fumio Yamada 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).

  • Foot exercise device
    Patent number: 11305156
    Abstract: A foot exercise device is described. In some embodiments, a foot exercise device includes a base structure and a forefoot structure coupled to the base structure. The base structure is configured to remain stationary. The forefoot structure is configured to be moved by a forefoot of a user while the base structure remains stationary. In some embodiments, a foot exercise device includes a base structure and a heel structure coupled to the base structure. The base structure is configured to remain stationary. The heel structure is configured to be moved by a heel of the user while the base structure remains stationary.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: April 19, 2022
    Inventor: Spencer Fumio Yamada
  • FOOT EXERCISE DEVICE
    Publication number: 20210086028
    Abstract: A foot exercise device is described. In some embodiments, a foot exercise device includes a base structure and a forefoot structure coupled to the base structure. The base structure is configured to remain stationary. The forefoot structure is configured to be moved by a forefoot of a user while the base structure remains stationary. In some embodiments, a foot exercise device includes a base structure and a heel structure coupled to the base structure. The base structure is configured to remain stationary. The heel structure is configured to be moved by a heel of the user while the base structure remains stationary.
    Type: Application
    Filed: December 18, 2019
    Publication date: March 25, 2021
    Inventor: Spencer Fumio Yamada