Inventor
Yi-Cheng Chang
Inventor
Taipei, TW
Overview
Patents· 17 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G09Gprimary
G09GArrangements or circuits for control of indicating devices using static means to present variable information15%
H10KOrganic electric solid-state devices11%
G06FElectric digital data processing7%
H03HImpedance networks, e.g. resonant circuits7%
H03KPulse technique7%
H04LTransmission of digital information, e.g. telegraphic communication7%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material4%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding4%
G05FSystems for regulating electric or magnetic variables4%
H01HElectric switches4%
PatentTitleYear
10,980,094Power supply apparatus for string light202110,720,288Keyboard device202010,211,815Systems and methods for supplying different voltage levels with shared current201910,069,410Multi-level power-domain voltage regulation20189,654,310'Analog delay cell and tapped delay line comprising the analog delay cell'20179,639,491'Connection interface switching device for multiple portable devices'20179,509,111'Coaxial terminal crimping tool'20168,816,782'Phase locked loop circuit having a voltage controlled oscillator with improved bandwidth'20148,680,937'Differential equalizers with source degeneration and feedback circuits'20148,294,643'Pixel of display'20128,253,709'Electronic device and method for predicting word input'20127,847,774'Active matrix organic light emitting diode (AMOLED) display, a pixel driving circuit, and a driving method thereof'20107,507,997'Organic light-emitting display'20097,439,540'Organic electroluminescent display'20087,285,918'Organic light emitting diode display and fabrication method thereof'20077,205,169'Driving circuit for AMOLED display and driving method thereof'20077,138,964'Mobile unit with dual panel display'2006Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006–2012Patents assigned to AU OPTRONICS CORP (7)· patent assignee history
2006–2021Based in Taipei, TW· patent location history
2012–2014Patents assigned to CHANG YI-CHENG (3)· patent assignee history
2012Patents assigned to CHANG HAN-ZEN (1)· patent assignee history
2012Based in Tu-Cheng, TW· patent location history
2014–2019Patents assigned to FREESCALE SEMICONDUCTOR INC (3)· patent assignee history
2014–2018Based in Tempe, AZ, US· patent location history
2016–2020Based in New Taipei, TW· patent location history
2017–2019Patents assigned to NXP USA INC (3)· patent assignee history
2019Based in Chandler, AZ, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AU OPTRONICS CORP | 7 | 2006–2012 |
| CHANG YI-CHENGself | 3 | 2012–2014 |
| FREESCALE SEMICONDUCTOR INC | 3 | 2014–2019 |
| NXP USA INC | 3 | 2017–2019 |
| CHANG HAN-ZEN | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Taipei, TW | 9 | 2006–2021 |
| Tempe, AZ, US | 4 | 2014–2018 |
| New Taipei, TW | 2 | 2016–2020 |
| Chandler, AZ, US | 1 | 2019 |
| Tu-Cheng, TW | 1 | 2012 |