Inventor

CHENG WEN-CHIN

TW9 patents

⚠️ This page may combine multiple inventors who share the name “CHENG WEN-CHIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

IND TECH RES INST

3 patents

US6132161AOct 17, 2000

Chip supplying apparatus performing stable blue-film-expansion operation

IND TECH RES INST31 citations87

US5648908AJul 15, 1997

Computer-aided embroidery machine for pattern and data preparing and testing and method of using the same

IND TECH RES INST20 citations87

US5564354AOct 15, 1996

Needle-changing mechanism for multiple-needle embroidery sewing machine

IND TECH RES INST2 citations57

UMAX DATA SYSTEMS INC

2 patents

US5912711AJun 15, 1999

Apparatus for converting and scaling non-interlaced VGA signal to interlaced TV signal

UMAX DATA SYSTEMS INC39 citations89

US6184939B1Feb 6, 2001

Apparatus for processing video signals and employing phase-locked loop

UMAX DATA SYSTEMS INC12 citations66

CHENG WEN-CHIN

2 patents

US9340069B1May 17, 2016

Wheel device

CHENG WEN-CHIN3 citations69

US8492999B2Jul 23, 2013

System and method for controlling electrical power of LED and LED projector having the same

CHENG WEN-CHIN5 citations69

HOCHENG POTTERY MFG CO LTD

1 patent

USD311435SOct 16, 1990

Flush toilet or similar article

HOCHENG POTTERY MFG CO LTD8 citations71

NOVATEK MICROELECTRONICS CORP

1 patent

US12400614B1Aug 26, 2025

Display apparatus and compensating method of image data

NOVATEK MICROELECTRONICS CORP0 citations56