Patents by Inventor Yu-chao WEI

Yu-chao WEI 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: 20220233373
    Abstract: An object is to make it easier to lift and move a wheelchair by keeping casters from hanging even when the wheelchair is lifted by one hand. To this end, a wheelchair includes a folding mechanism that couples a left-side support arm and a right-side support arm foldably in a left-right direction of the vehicle body. The folding mechanism includes an operation part for use in changing a state of a left-side support arm and a right-side support arm from one of a folded state or an unfolded state to another. The operation part is arranged between a rear drive wheel and a caster in a side view of the vehicle body.
    Type: Application
    Filed: January 3, 2022
    Publication date: July 28, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takashi IWASE, Isao TODA, Chih-Hung CHEN, Yu-chao WEI
  • Publication number: 20220233372
    Abstract: It is an object to improve riding comfort of a wheelchair having a folding mechanism by keeping an operation part of the folding mechanism from contacting a wheelchair user seated. A folding mechanism includes an operation part for use in changing a state of a left-side support arm and a right-side support arm from one of a folded state or an unfolded state to another. The operation part is arranged below an upper end part of a seat frame with a predetermined space therebetween.
    Type: Application
    Filed: January 3, 2022
    Publication date: July 28, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takashi IWASE, Isao TODA, Yu-chao WEI
  • Publication number: 20220233374
    Abstract: It is an object to make it easy to unfold a wheelchair simply by lifting a part of the wheelchair with one hand. A wheelchair includes a folding mechanism that folds a left-side support arm and a right-side support arm. The folding mechanism includes a grip part coupled to the distal end part of the left-side support arm and the distal end part of the right-side support arm. The grip part extends in the pivoting direction of the left-side support arm and the right-side support arm at a time of switching from a folded state to an unfolded state.
    Type: Application
    Filed: January 5, 2022
    Publication date: July 28, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Takashi IWASE, Isao TODA, Chih-Hung CHEN, Yu-chao WEI