Inventor
HSIEH YU-CHUN
TW33 patents
⚠️ This page may combine multiple inventors who share the name “HSIEH YU-CHUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DARFON ELECTRONICS CORP
27 patentsUS10431402B2Oct 1, 2019
Button switch with adjustable tactile feedback
DARFON ELECTRONICS CORP19 citations86
US11108393B2Aug 31, 2021
Optical keyswitch triggered by support mechanism having at least one rotatable frame enable a protrusion to move along with a key cap
DARFON ELECTRONICS CORP7 citations83
US11223357B2Jan 11, 2022
Keyswitch
DARFON ELECTRONICS CORP6 citations75
US11018667B2May 25, 2021
Optical keyswitch
DARFON ELECTRONICS CORP2 citations73
US10930451B2Feb 23, 2021
Keyswitch with adjustable tactile feedback
DARFON ELECTRONICS CORP4 citations73
US10637470B2Apr 28, 2020
Optical keyswitch
DARFON ELECTRONICS CORP6 citations73
US10572018B2Feb 25, 2020
Keyswitch with adjustable tactile feedback
DARFON ELECTRONICS CORP4 citations73
US11770123B2Sep 26, 2023
Optical keyswitch comprising a keycap having a light transmission area and a keycap projection area projected on a circuit board
DARFON ELECTRONICS CORP2 citations72
US11817278B2Nov 14, 2023
Magnetic type keyswitch
DARFON ELECTRONICS CORP2 citations70
US12160235B2Dec 3, 2024
Optical keyswitch with sliding end
DARFON ELECTRONICS CORP0 citations62
US12020873B2Jun 25, 2024
Sensing keyboard and sensing keyswitches thereof
DARFON ELECTRONICS CORP0 citations62
US11978598B2May 7, 2024
Keyswitch structure and lift mechanism thereof
DARFON ELECTRONICS CORP0 citations62
US11855624B2Dec 26, 2023
Optical switch comprising a movable member to rotate in response to movement of a support mechanism to change the intensity of received optical signal
DARFON ELECTRONICS CORP0 citations62
US11735380B2Aug 22, 2023
Keyswitch structure and keyboard
DARFON ELECTRONICS CORP1 citations62
US11705294B2Jul 18, 2023
Input device and key structure thereof
DARFON ELECTRONICS CORP0 citations62
US11551888B2Jan 10, 2023
Keyswitch structure and keyboard
DARFON ELECTRONICS CORP0 citations62
US10866640B2Dec 15, 2020
Adjusting method applied to a keyswitch for adjusting tactile feedback
DARFON ELECTRONICS CORP0 citations52
US10795447B2Oct 6, 2020
Keyswitch with adjustable tactile feedback
DARFON ELECTRONICS CORP0 citations52
US12406817B2Sep 2, 2025
Keyswitch structure
DARFON ELECTRONICS CORP0 citations51
US12216824B2Feb 4, 2025
Mute-able input device with keystroke tactile feedback
DARFON ELECTRONICS CORP0 citations51
US12080492B2Sep 3, 2024
Keyswitch structure and lift mechanism thereof
DARFON ELECTRONICS CORP0 citations51
US12009161B2Jun 11, 2024
Key structure
DARFON ELECTRONICS CORP0 citations51
US11990295B2May 21, 2024
Keyswitch and illuminated keyswitch
DARFON ELECTRONICS CORP0 citations51
US11923159B2Mar 5, 2024
Keyswitch structure and keycap support mechanism thereof
DARFON ELECTRONICS CORP0 citations51
US11327573B2May 10, 2022
Keyboard and keyswitch and adjustment mechanism thereof
DARFON ELECTRONICS CORP0 citations51
US12272504B2Apr 8, 2025
Keyswitch assembly
DARFON ELECTRONICS CORP0 citations48
US10535477B2Jan 14, 2020
Button switch and keyswitch thereof
DARFON ELECTRONICS CORP0 citations40