Patents by Inventor Jian-Cheng Lai

Jian-Cheng Lai 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).

  • Patent number: 11557444
    Abstract: Key switches of the inventive subject matter are designed to give users the tactile feel of key switches from expensive mechanical keyboards without drawback typically associated with alternative key switches. In some embodiments, key switches described in this application are designed to function with a sheet of membrane switches, while in other embodiments, key switches of the inventive subject matter incorporate optical switching in place of membrane switching. Embodiments for use with membrane switching feature a plunger and rocker combination that prevents the pressure from a user's key press from being directly transferred to a membrane switch, thereby reducing wear and tear. In optical switching embodiments, pressing the key switch causes an actuator, e.g., come between an optical emitter/receiver pair to register a key press.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: January 17, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Jian-Cheng Lai, Wei-Min Liang, Kuo Shou Yu
  • Patent number: 11373822
    Abstract: Key switches of the inventive subject matter are designed to give users the tactile feel of key switches from expensive mechanical keyboards without drawback typically associated with alternative key switches. In some embodiments, key switches described in this application are designed to function with a sheet of membrane switches. These embodiments feature a plunger and rocker combination that prevents the pressure from a user's key press from being directly transferred to a membrane switch, thereby reducing wear and tear.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: June 28, 2022
    Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Jian-Cheng Lai, Wei-Min Liang, Kuo Shou Yu
  • Publication number: 20210383988
    Abstract: Key switches of the inventive subject matter are designed to give users the tactile feel of key switches from expensive mechanical keyboards without drawback typically associated with alternative key switches. In some embodiments, key switches described in this application are designed to function with a sheet of membrane switches. These embodiments feature a plunger and rocker combination that prevents the pressure from a user's key press from being directly transferred to a membrane switch, thereby reducing wear and tear.
    Type: Application
    Filed: June 4, 2020
    Publication date: December 9, 2021
    Inventors: Jian-Cheng Lai, Wei-Min Liang, Kuo Shou Yu
  • Publication number: 20210383986
    Abstract: Key switches of the inventive subject matter are designed to give users the tactile feel of key switches from expensive mechanical keyboards without drawback typically associated with alternative key switches. In some embodiments, key switches described in this application are designed to function with a sheet of membrane switches, while in other embodiments, key switches of the inventive subject matter incorporate optical switching in place of membrane switching. Embodiments for use with membrane switching feature a plunger and rocker combination that prevents the pressure from a user's key press from being directly transferred to a membrane switch, thereby reducing wear and tear. In optical switching embodiments, pressing the key switch causes an actuator, e.g., come between an optical emitter/receiver pair to register a key press.
    Type: Application
    Filed: June 8, 2020
    Publication date: December 9, 2021
    Inventors: Jian-Cheng Lai, Wei-Min Liang, Kuo Shou Yu
  • Patent number: D441966
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: May 15, 2001
    Inventor: Jian-Cheng Lai
  • Patent number: D830360
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: October 9, 2018
    Assignee: Kingston Digital, Inc.
    Inventors: Albert Jin, Lung Yuan Chen, Jian Cheng Lai
  • Patent number: D844000
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: March 26, 2019
    Assignee: Kingston Digital, Inc.
    Inventors: Baron King Lee, Albert Jin, Yi Ting Lin, Jian Cheng Lai
  • Patent number: D901503
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: November 10, 2020
    Assignee: Kingston Digital, Inc.
    Inventors: Baron King Lee, Albert Jin, Guan Hua Tzeng, Jian Cheng Lai