Light-emitting device and production method thereof
US-12501748-B2 · Dec 16, 2025 · US
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Chang Chia-Hung patents
Chang Chia-Hung is listed as an inventor on 66 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Chang Chia-Hung |
| Total patents | 66 |
| First publication | Apr 27, 2017 |
| Latest publication | Dec 16, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Light emitting diode device
US-12439743-B2 · Oct 7, 2025 · US
Semiconductor light emitting device
US-2025255038-A1 · Aug 7, 2025 · US
Multi-quantum well structure and LED device including the same
US-12328973-B2 · Jun 10, 2025 · US
Semiconductor light emitting device
US-12302666-B2 · May 13, 2025 · US
Light-emitting diode chip and method for manufacturing the same
US-12294037-B2 · May 6, 2025 · US
Light-emitting diode and method for manufacturing the same
US-2024429349-A1 · Dec 26, 2024 · US
Light Emitting Diode and Fabrication Method Thereof
US-2024413291-A1 · Dec 12, 2024 · US
Semiconductor device and light-emitting system
US-12125948-B2 · Oct 22, 2024 · US
Multi-junction light-emitting diode and method for making the same
US-12119425-B2 · Oct 15, 2024 · US
Recent patents
Latest publications not already listed above.
Light-emitting diode and method for manufacturing the same
US-12087885-B2 · Sep 10, 2024 · US
Light-emitting device and light-emitting apparatus
US-2024234633-A9 · Jul 11, 2024 · US
Light-emitting device and light-emitting apparatus
US-2024162372-A1 · May 16, 2024 · US
Light-emitting device and light-emitting apparatus
US-2024136471-A1 · Apr 25, 2024 · US
Semiconductor light emitting device
US-2024113254-A1 · Apr 4, 2024 · US
Light-emitting diode and method for manufacturing the same
US-11862752-B2 · Jan 2, 2024 · US
Semiconductor light emitting device
US-11848401-B2 · Dec 19, 2023 · US
Light emitting diode device
US-2023268466-A1 · Aug 24, 2023 · US
Light-emitting diode device and method for manufacturing the same
US-11721789-B2 · Aug 8, 2023 · US
Semiconductor light emitting device
US-2023170436-A1 · Jun 1, 2023 · US
Light emitting diode device
US-11637223-B2 · Apr 25, 2023 · US
Semiconductor light emitting device
US-11557693-B2 · Jan 17, 2023 · US
Light-emitting diode and method for manufacturing the same
US-11532769-B2 · Dec 20, 2022 · US
Semiconductor device and light-emitting system
US-2022359793-A1 · Nov 10, 2022 · US
Light-emitting diode device and method for manufacturing the same
US-2022302345-A1 · Sep 22, 2022 · US
Light-emitting device and production method thereof
US-2022285583-A1 · Sep 8, 2022 · US
Semiconductor device and light-emitting system
US-11430918-B2 · Aug 30, 2022 · US
Light-emitting diode device and method for manufacturing the same
US-11393950-B2 · Jul 19, 2022 · US
Multi-junction light-emitting diode and method for making the same
US-2022209049-A1 · Jun 30, 2022 · US
Light emitting diode device
US-2022123176-A2 · Apr 21, 2022 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Xiamen Sanan Optoelectronics Technology Co Ltd | 39 |
| Xiamen Sanan Optoelectronics Co Ltd | 19 |
| Tianjin Sanan Optoelectronics Co Ltd | 7 |
| Quanzhou Sanan Semiconductor Tech Co Ltd | 5 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| H10H20/812 | 29 |
| H10H20/816 | 28 |
| H10H20/825 | 27 |
| H10H20/0137 | 23 |
| H10H20/815 | 23 |