Patents by Inventor Cheng-Wen Shen

Cheng-Wen Shen 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).

  • Keyboard device
    Patent number: 9330862
    Abstract: The present invention discloses a keyboard device. The keyboard device includes a sheet, a membrane switch, an actuating component, and a protrusion keycap structure. The membrane switch is disposed on a side of the sheet. The actuating component is disposed on a side of the membrane switch far away from the sheet and is for pressing the membrane switch to actuate the membrane switch. The protrusion keycap structure is disposed on a side of the actuating component far away from the membrane switch and is for driving the actuating component to actuate the membrane switch upon being pressed. The protrusion keycap structure includes a mylar film.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: May 3, 2016
    Assignee: Wistron Corporation
    Inventors: Wen-Chi Hsu, Cheng-Wen Shen
  • KEYBOARD DEVICE
    Publication number: 20140374231
    Abstract: The present invention discloses a keyboard device. The keyboard device includes a sheet, a membrane switch, an actuating component, and a protrusion keycap structure. The membrane switch is disposed on a side of the sheet. The actuating component is disposed on a side of the membrane switch far away from the sheet and is for pressing the membrane switch to actuate the membrane switch. The protrusion keycap structure is disposed on a side of the actuating component far away from the membrane switch and is for driving the actuating component to actuate the membrane switch upon being pressed. The protrusion keycap structure includes a mylar film.
    Type: Application
    Filed: September 5, 2013
    Publication date: December 25, 2014
    Applicant: Wistron Corporation
    Inventors: Wen-Chi Hsu, Cheng-Wen Shen