ALFASEMI INC.

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Taipei, TW

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Patents Grantslast 30 patents

Information Patent Grant
Power line resistance sensing device
- Patent number 10,404,055
- Issue date Sep 3, 2019
- ALFASEMI INC.
- Yu-Cheng Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Voltage regulation circuit for LED tube
- Patent number 10,182,479
- Issue date Jan 15, 2019
- ALFASEMI INC.
- Te-Lung Shih
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
LED device with energy compensation
- Patent number 9,848,472
- Issue date Dec 19, 2017
- ALFASEMI INC.
- Yu-Cheng Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
High-safety LED tube
- Patent number 9,717,128
- Issue date Jul 25, 2017
- ALFASEMI INC.
- Te-Lung Shih
- F21 - LIGHTING
Information Patent Grant
Filament simulation circuit for LED tube
- Patent number 9,674,910
- Issue date Jun 6, 2017
- ALFASEMI INC.
- Te-Lung Shih
- F21 - LIGHTING
Information Patent Grant
LED control circuit
- Patent number 9,615,421
- Issue date Apr 4, 2017
- ALFASEMI INC.
- Yu-Cheng Chang
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
LED control system suitable for different types of power sources
- Patent number 9,433,052
- Issue date Aug 30, 2016
- ALFASEMI INC.
- Yu-Cheng Chang
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
IN-WAFER TESTING DEVICE
- Publication number 20220310461
- Publication date Sep 29, 2022
- Alfasemi Inc.
- Te-Lung SHIH
- H01 - BASIC ELECTRIC ELEMENTS

Trademarklast 30 trademarks