Inventor
CHIA-HUNG CHANG
Inventor
CN
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Hprimary
H10HInorganic light-emitting semiconductor devices having potential barriers49%
H01LSemiconductor devices37%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them3%
G06FElectric digital data processing3%
G06VImage or video recognition or understanding3%
H04NPictorial communication, e.g. television3%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h103%
PatentTitleYear
12,501,748Light-emitting device and production method thereof202512,439,743Light emitting diode device202512,356,064Measurement assistance system and method202512,328,973Multi-quantum well structure and LED device including the same202512,302,666Semiconductor light emitting device202512,294,037Light-emitting diode chip and method for manufacturing the same202512,125,948Semiconductor device and light-emitting system202412,119,425Multi-junction light-emitting diode and method for making the same202412,087,885Light-emitting diode and method for manufacturing the same202411,862,752Light-emitting diode and method for manufacturing the same202411,848,401Semiconductor light emitting device202311,721,789Light-emitting diode device and method for manufacturing the same202311,637,223Light emitting diode device202311,557,693Semiconductor light emitting device202311,532,769Light-emitting diode and method for manufacturing the same202211,430,918Semiconductor device and light-emitting system202211,393,950Light-emitting diode device and method for manufacturing the same202211,189,751Multi-quantum well structure and LED device including the same2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2025Patents assigned to XIAMEN SANAN OPTOELECTRONICS CO LTD (7)· patent assignee history
2021–2025Based in CN· patent location history
2022–2025Patents assigned to XIAMEN SANAN OPTOELECTRONICS TECHNOLOGY CO LTD (8)· patent assignee history
2024–2025Patents assigned to QUANZHOU SANAN SEMICONDUCTOR TECH CO LTD (4)· patent assignee history
2024–2025Patents assigned to TIANJIN SANAN OPTOELECTRONICS CO LTD (2)· patent assignee history
2025Patents assigned to UNIV NAT KAOHSIUNG SCIENCE & TECHNOLOGY (1)· patent assignee history
2025Based in TW· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| XIAMEN SANAN OPTOELECTRONICS TECHNOLOGY CO LTD | 8 | 2022–2025 |
| XIAMEN SANAN OPTOELECTRONICS CO LTD | 7 | 2021–2025 |
| QUANZHOU SANAN SEMICONDUCTOR TECH CO LTD | 4 | 2024–2025 |
| TIANJIN SANAN OPTOELECTRONICS CO LTD | 2 | 2024–2025 |
| UNIV NAT KAOHSIUNG SCIENCE & TECHNOLOGY | 1 | 2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| CN | 17 | 2021–2025 |
| TW | 1 | 2025 |