Inventor
CHANG CHIA-CHUN
TW28 patents
⚠️ This page may combine multiple inventors who share the name “CHANG CHIA-CHUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HON HAI PREC IND CO LTD
6 patentsUS8363341B2Jan 29, 2013
Fixed-focus lens module
HON HAI PREC IND CO LTD8 citations84
US8014655B2Sep 6, 2011
Camera module
HON HAI PREC IND CO LTD7 citations83
US8047833B2Nov 1, 2011
Injection mold
HON HAI PREC IND CO LTD2 citations62
US7988528B2Aug 2, 2011
Apparatus and method for grinding threaded portion of workpiece
HON HAI PREC IND CO LTD0 citations52
US7880979B2Feb 1, 2011
Aperture stop and manufacturing method thereof
HON HAI PREC IND CO LTD1 citations52
US7990638B2Aug 2, 2011
Lens module
HON HAI PREC IND CO LTD0 citations51
CHANG CHIA-CHUN
6 patentsUS8807525B2Aug 19, 2014
Quick-release coupling
CHANG CHIA-CHUN14 citations83
US8599501B2Dec 3, 2013
Lens module
CHANG CHIA-CHUN16 citations83
US8467008B2Jun 18, 2013
Clamping device, backlight module, and display apparatus
CHANG CHIA-CHUN8 citations83
US8253839B2Aug 28, 2012
Lens assembly and camera module having same
CHANG CHIA-CHUN12 citations83
US9248479B2Feb 2, 2016
Cleaning device for cleaning optical lenses in tray
CHANG CHIA-CHUN0 citations51
US8120695B2Feb 21, 2012
Camera module having a lens barrel holder including a protrusion inserted in a recess in a sidewall of the lens barrel and providing good coaxiality
CHANG CHIA-CHUN0 citations51
TAIWAN SEMICONDUCTOR MFG CO LTD
5 patentsUS9780647B2Oct 3, 2017
Input-output circuits
TAIWAN SEMICONDUCTOR MFG CO LTD4 citations73
US11962240B2Apr 16, 2024
Auto calibration dead-time control circuit
TAIWAN SEMICONDUCTOR MFG CO LTD0 citations62
US10998817B2May 4, 2021
Auto calibration dead-time control circuit
TAIWAN SEMICONDUCTOR MFG CO LTD0 citations62
US10186958B2Jan 22, 2019
Input-output circuits
TAIWAN SEMICONDUCTOR MFG CO LTD1 citations62
US11271482B2Mar 8, 2022
DC-DC converter and DC-DC converter operation method
TAIWAN SEMICONDUCTOR MFG CO LTD0 citations52