Inventor
CHANG A-MING
TW21 patents
⚠️ This page may combine multiple inventors who share the name “CHANG A-MING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PRIMAX ELECTRONICS LTD
18 patentsUS6160537ADec 12, 2000
Computer joystick for moving an object in three dimensions
PRIMAX ELECTRONICS LTD26 citations92
US6181327B1Jan 30, 2001
Computer joystick
PRIMAX ELECTRONICS LTD18 citations77
US10108276B2Oct 23, 2018
Mouse device
PRIMAX ELECTRONICS LTD2 citations72
US9146649B1Sep 29, 2015
Passive touch pen
PRIMAX ELECTRONICS LTD6 citations72
US10725568B1Jul 28, 2020
Scroll module
PRIMAX ELECTRONICS LTD3 citations71
US9001043B2Apr 7, 2015
Mouse device
PRIMAX ELECTRONICS LTD2 citations62
US8363013B2Jan 29, 2013
Input device with click button
PRIMAX ELECTRONICS LTD2 citations62
US8049725B2Nov 1, 2011
Wireless mouse
PRIMAX ELECTRONICS LTD5 citations62
US10775908B1Sep 15, 2020
Luminous scroll module
PRIMAX ELECTRONICS LTD1 citations61
US10310629B2Jun 4, 2019
Joystick-type mouse
PRIMAX ELECTRONICS LTD1 citations61
US10310633B2Jun 4, 2019
Mouse device
PRIMAX ELECTRONICS LTD1 citations60
US7753548B2Jul 13, 2010
Input device having indicating lamp
PRIMAX ELECTRONICS LTD1 citations50
US9030435B2May 12, 2015
Touch input device with button function
PRIMAX ELECTRONICS LTD0 citations41
US8810539B1Aug 19, 2014
Touch input device with button function
PRIMAX ELECTRONICS LTD0 citations41
US10429951B2Oct 1, 2019
Mouse device with adjustable moving resolution
PRIMAX ELECTRONICS LTD0 citations40
US10310635B2Jun 4, 2019
Mouse device
PRIMAX ELECTRONICS LTD0 citations40
US9836138B2Dec 5, 2017
Touch pen
PRIMAX ELECTRONICS LTD0 citations40
US7744238B2Jun 29, 2010
Input device having multi-stage indicating lamp
PRIMAX ELECTRONICS LTD0 citations40