Patents by Inventor Rong-Shu Li

Rong-Shu Li 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).

  • Dual spring key structure
    Patent number: 10013076
    Abstract: An input device includes at least one key structure and a film circuit board disposed below the key structure. The key structure includes a top cover, a plunger, a sleeve, a rod, a first elastic element, a second elastic element and a bottom cover. The plunger is assembled on the top cover and has a protruding portion protruding from a first opening of the top cover and a guiding portion. The sleeve is assembled inside the plunger. The rod is movably disposed in the sleeve. The first elastic element is disposed in the rod, wherein the guiding portion passes through the first elastic element so that a first end of the first elastic element leans against the plunger. The bottom cover having a second opening locks the top cover. A second end and a third end of the second elastic element respectively lean against the sleeve and the bottom cover.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: July 3, 2018
    Assignees: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, Lite-On Technology Corporation
    Inventors: Chih-Wen Su, Rong-Shu Li
  • INPUT DEVICE
    Publication number: 20180095544
    Abstract: An input device includes at least one key structure and a film circuit board disposed below the key structure. The key structure includes a top cover, a plunger, a sleeve, a rod, a first elastic element, a second elastic element and a bottom cover. The plunger is assembled on the top cover and has a protruding portion protruding from a first opening of the top cover and a guiding portion. The sleeve is assembled inside the plunger. The rod is movably disposed in the sleeve. The first elastic element is disposed in the rod, wherein the guiding portion passes through the first elastic element so that a first end of the first elastic element leans against the plunger. The bottom cover having a second opening locks the top cover. A second end and a third end of the second elastic element respectively lean against the sleeve and the bottom cover.
    Type: Application
    Filed: February 8, 2017
    Publication date: April 5, 2018
    Applicants: LITE-ON ELECTRONICS (GUANGZHOU) LIMITED, Lite-On Technology Corporation
    Inventors: Chih-Wen Su, Rong-Shu Li