Patents by Inventor Jin-Long CHAN

Jin-Long CHAN 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: 11551890
    Abstract: A keyswitch includes a cap, first and second support members slidably connected to the cap and opposite to each other, and first and second blocks formed on the cap. The cap is movable between a non-pressed position and a pressed position. The first support member abuts against the first block when the cap is located at the non-pressed position. The first block moves away from the first support member at a first gap when the cap moves downward from the non-pressed position. The first support member abuts against the cap when the cap is located at the non-pressed position, and abuts against the second block when the cap continues moving downward to the pressed position.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: January 10, 2023
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Jin-Long Chan, Yu-Chih Chang, Cheng-Min Su
  • Publication number: 20210175028
    Abstract: A keyswitch includes a cap, first and second support members slidably connected to the cap and opposite to each other, and first and second blocks formed on the cap. The cap is movable between a non-pressed position and a pressed position. The first support member abuts against the first block when the cap is located at the non-pressed position. The first block moves away from the first support member at a first gap when the cap moves downward from the non-pressed position. The first support member abuts against the cap when the cap is located at the non-pressed position, and abuts against the second block when the cap continues moving downward to the pressed position.
    Type: Application
    Filed: March 4, 2020
    Publication date: June 10, 2021
    Inventors: Jin-Long Chan, Yu-Chih Chang, Cheng-Min Su
  • Patent number: 10978261
    Abstract: A method for fabricating a keyboard covering film is provided. The method includes steps of: coating a transparent plastic material on an upper surface of a fabric layer before the transparent plastic material is cured; treating the fabric layer and the transparent plastic material by a hot press process to cure the transparent plastic material to form a transparent layer and to make the transparent layer and the fabric layer jointly form a number of keycap receiving sections; forming a mask layer on a lower surface of the fabric layer; removing a portion of the mask layer and a portion of the fabric layer located within each of the keycap receiving sections to form a number of hollow patterns.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: April 13, 2021
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Zheng-Hong Lai, Chih-Ho Hsu, Che-Wei Lee, Jin-Long Chan, Yuan-bao Chen, Chang-En Sun
  • Publication number: 20200303141
    Abstract: A method for fabricating a keyboard covering film is provided. The method includes steps of: coating a transparent plastic material on an upper surface of a fabric layer before the transparent plastic material is cured; treating the fabric layer and the transparent plastic material by a hot press process to cure the transparent plastic material to form a transparent layer and to make the transparent layer and the fabric layer jointly form a number of keycap receiving sections; forming a mask layer on a lower surface of the fabric layer; removing a portion of the mask layer and a portion of the fabric layer located within each of the keycap receiving sections to form a number of hollow patterns.
    Type: Application
    Filed: June 10, 2020
    Publication date: September 24, 2020
    Inventors: Zheng-Hong LAI, Chih-Ho HSU, Che-Wei LEE, Jin-Long CHAN, Yuan-bao CHEN, Chang-En SUN
  • Patent number: 10770246
    Abstract: A keyboard covering film including a fabric layer, a transparent layer and a mask layer is disclosed. The transparent layer is disposed on an upper surface of the fabric layer. The mask layer is disposed on a lower surface of the fabric layer. The transparent layer and the fabric layer are treated by a hot pressing process to form a number of keycap receiving sections. The keycap receiving sections, the fabric layer and the mask layer are located on the same side of the transparent layer. The fabric layer and the mask layer have hollow patterns within the keycap receiving sections, wherein the hollow patterns are formed by removing a portion of the fabric layer and the mask layer.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: September 8, 2020
    Assignee: DARFON ELECTRONICS CORP.
    Inventors: Zheng-Hong Lai, Chih-Ho Hsu, Che-Wei Lee, Jin-Long Chan, Yuan-bao Chen, Chang-En Sun
  • Publication number: 20180323021
    Abstract: A keyboard covering film including a fabric layer, a transparent layer and a mask layer is disclosed. The transparent layer is disposed on an upper surface of the fabric layer. The mask layer is disposed on a lower surface of the fabric layer. The transparent layer and the fabric layer are treated by a hot pressing process to form a number of keycap receiving sections. The keycap receiving sections, the fabric layer and the mask layer are located on the same side of the transparent layer. The fabric layer and the mask layer have hollow patterns within the keycap receiving sections, wherein the hollow patterns are formed by removing a portion of the fabric layer and the mask layer.
    Type: Application
    Filed: May 4, 2018
    Publication date: November 8, 2018
    Inventors: Zheng-Hong LAI, Chih-Ho HSU, Che-Wei LEE, Jin-Long CHAN, Yuan-bao CHEN, Chang-En SUN