Assignee
CHANG CHIN-FU
TW·52 granted patents·2 pending applications·338 citations·filing 1989–2012
Top patents by PatentIndex Score
54 records- 0198US8614688B2Capacitive touch screenCHANG CHIN-FU·Filed 2011·Granted Dec 24, 2013·37 cites·16 claims
- 0296US8830205B2Capacitive touch screen with square or rhombus conductive strips with extension padsCHANG CHIN-FU·Filed 2012·Granted Sep 9, 2014·20 cites·23 claims
- 0395US8400423B2Method and device for analyzing positionsCHANG CHIN-FU·Filed 2011·Granted Mar 19, 2013·16 cites·20 claims
- 0493US8890821B2Method and device for dual-differential sensingCHANG CHIN-FU·Filed 2011·Granted Nov 18, 2014·9 cites·28 claims
- 0592US8570289B2Method and device for position detectionCHANG CHIN-FU·Filed 2010·Granted Oct 29, 2013·11 cites·17 claims
- 0691US9081440B2Device and method for writing on capacitive touch sensor by stylus with conductive head and insulating bodyCHANG CHIN-FU·Filed 2011·Granted Jul 14, 2015·8 cites·14 claims
- 0791US8564564B2Method and device for position detectionCHANG CHIN-FU·Filed 2011·Granted Oct 22, 2013·11 cites·12 claims
- 0890US8531429B2Method and device for capacitive sensingCHANG CHIN-FU·Filed 2009·Granted Sep 10, 2013·17 cites·35 claims
- 0989US8614684B2Capacitive touch screenCHANG CHIN-FU·Filed 2011·Granted Dec 24, 2013·6 cites·18 claims
- 1089US8531426B2Capacitive touch with driving conductive strips closer to an external object and without rear shielding layerCHANG CHIN-FU·Filed 2012·Granted Sep 10, 2013·6 cites·21 claims
- 1189US8502794B2Capacitive touch sensitive display with dummy pads and without rear shielding layerCHANG CHIN-FU·Filed 2011·Granted Aug 6, 2013·6 cites·21 claims
- 1289US8400422B2Method and device for analyzing positionsCHANG CHIN-FU·Filed 2010·Granted Mar 19, 2013·7 cites·20 claims
- 1388US8600698B2Method and device for analyzing positionsCHANG CHIN-FU·Filed 2010·Granted Dec 3, 2013·6 cites·15 claims
- 1485US8896548B2Capacitive touch screen with method and device for converting sensing information including zero cross pointCHANG CHIN-FU·Filed 2010·Granted Nov 25, 2014·7 cites·16 claims
- 1585US8730193B2Capacitive touchscreen with rhombic and hexagonal padsCHANG CHIN-FU·Filed 2012·Granted May 20, 2014·4 cites·21 claims
- 1685US8614685B2Capacitive touch screenCHANG CHIN-FU·Filed 2011·Granted Dec 24, 2013·4 cites·18 claims
- 1785US8614687B2Capacitive touch screenCHANG CHIN-FU·Filed 2011·Granted Dec 24, 2013·4 cites·16 claims
- 1885US8614686B2Capacitive touch screenCHANG CHIN-FU·Filed 2011·Granted Dec 24, 2013·4 cites·21 claims
- 1985US8537131B2Method and device for converting sensing informationCHANG CHIN-FU·Filed 2011·Granted Sep 17, 2013·7 cites·16 claims
- 2082US8624866B2Touch method and device for distinguishing true touchCHANG CHIN-FU·Filed 2009·Granted Jan 7, 2014·8 cites·30 claims
- 2182US8564557B2Device and method for parallel-scanning differential touch detectionCHANG CHIN-FU·Filed 2010·Granted Oct 22, 2013·3 cites·38 claims
- 2281US9081441B2Method and device for analyzing two-dimension sensing informationCHANG CHIN-FU·Filed 2011·Granted Jul 14, 2015·4 cites·20 claims
- 2381US8704798B2Detecting method and device for capacitive touch screenCHANG CHIN-FU·Filed 2012·Granted Apr 22, 2014·5 cites·20 claims
- 2481US4947524AResilient sheet-steel paper clipCHANG CHIN FU·Filed 1990·Granted Aug 14, 1990·42 cites·1 claims
- 2578US8842079B2Method and device for determining a touch or touchesCHANG CHIN-FU·Filed 2010·Granted Sep 23, 2014·2 cites·19 claims
- 2677US8941597B2Method and device for analyzing two-dimension sensing informationCHANG CHIN-FU·Filed 2010·Granted Jan 27, 2015·2 cites·21 claims
- 2777US8546705B2Device and method for preventing the influence of conducting material from point detection of projected capacitive touch panelCHANG CHIN-FU·Filed 2009·Granted Oct 1, 2013·9 cites·24 claims
- 2877US8473243B2Method and device for analyzing positionsCHANG CHIN-FU·Filed 2011·Granted Jun 25, 2013·2 cites·20 claims
- 2977US8400425B2Method and device for analyzing positionsCHANG CHIN-FU·Filed 2011·Granted Mar 19, 2013·2 cites·20 claims
- 3076US8643613B2Method and device for dual-differential sensingCHANG CHIN-FU·Filed 2010·Granted Feb 4, 2014·3 cites·16 claims
- 3174US8471826B2Method and device for position detectionCHANG CHIN-FU·Filed 2011·Granted Jun 25, 2013·2 cites·29 claims
- 3272US8884914B2Method and device for signal detectionCHANG CHIN-FU·Filed 2011·Granted Nov 11, 2014·1 cites·14 claims
- 3371US8583401B2Method and device for analyzing positionsCHANG CHIN-FU·Filed 2011·Granted Nov 12, 2013·1 cites·20 claims
- 3470US8446380B2Method and device for resistive multi-point touchCHANG CHIN-FU·Filed 2009·Granted May 21, 2013·2 cites·17 claims
- 3567US8952928B2Device and method for detecting touch screenCHANG CHIN-FU·Filed 2012·Granted Feb 10, 2015·1 cites·20 claims
- 3666US8553011B2Method and device for capacitive sensingCHANG CHIN-FU·Filed 2009·Granted Oct 8, 2013·2 cites·25 claims
- 3764US8633917B2Method and device for capacitive position detectionCHANG CHIN-FU·Filed 2011·Granted Jan 21, 2014·1 cites·8 claims
- 3864US8587555B2Method and device for capacitive position detectionCHANG CHIN-FU·Filed 2010·Granted Nov 19, 2013·1 cites·21 claims
- 3962US9626044B2System and method for scanning control of a capacitive touch panelCHANG CHIN-FU·Filed 2010·Granted Apr 18, 2017·1 cites·26 claims
- 4060US8976122B2Control unit, sensing device for a capacitive touch panel and method thereforCHANG CHIN-FU·Filed 2009·Granted Mar 10, 2015·1 cites·4 claims
- 4158US8816979B2Method and device for determining a touch or touchesCHANG CHIN-FU·Filed 2011·Granted Aug 26, 2014·0 cites·16 claims
- 4257US8816987B2Method and device for signal detectionCHANG CHIN-FU·Filed 2010·Granted Aug 26, 2014·0 cites·47 claims
- 4357US8400424B2Method and device for analyzing positionsCHANG CHIN-FU·Filed 2011·Granted Mar 19, 2013·0 cites·20 claims
- 4453US9069410B2Method and device for analyzing two-dimension sensing informationCHANG CHIN-FU·Filed 2011·Granted Jun 30, 2015·0 cites·18 claims
- 4553US8872776B2Method and device for analyzing two-dimension sensing informationCHANG CHIN-FU·Filed 2011·Granted Oct 28, 2014·0 cites·20 claims
- 4652US9689906B2Method and device for position detectionCHANG CHIN-FU·Filed 2010·Granted Jun 27, 2017·0 cites·18 claims
- 4751US9024911B2Method and device for detecting capacitive touch screenCHANG CHIN-FU·Filed 2012·Granted May 5, 2015·0 cites·26 claims
- 4851US4991742AAutomatic drip bottle setCHANG CHIN FU·Filed 1989·Granted Feb 12, 1991·53 cites·2 claims
- 4948US8884631B2Method and device for automatically calibrating touch detectionCHANG CHIN-FU·Filed 2011·Granted Nov 11, 2014·0 cites·19 claims
- 5048US8624865B2Device for improving the accuracy of the touch point on a touch panel and a method thereofCHANG CHIN-FU·Filed 2008·Granted Jan 7, 2014·0 cites·12 claims
Showing the top 50 of 54 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when CHANG CHIN-FU files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →