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Jen-Hung Chi
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Taichung City, TW
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Patents Grants
last 30 patents
Information
Patent Grant
Motor controller
Patent number
8,994,315
Issue date
Mar 31, 2015
Richtek Technology Corporation
Wei-Hsu Chang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Auto-zero amplifier and sensor module using same
Patent number
8,773,198
Issue date
Jul 8, 2014
Richtek Technology Corporation
Shiueshr Jiang
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Zero-crossing detection circuit and commutation device using the ze...
Patent number
8,487,571
Issue date
Jul 16, 2013
Richtek Technology Corp.
Wei-Hsu Chang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
MOTOR CONTROLLER
Publication number
20140252995
Publication date
Sep 11, 2014
RICHTEK TECHNOLOGY CORPORATION
Wei-Hsu Chang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
AUTO-ZERO AMPLIFIER AND SENSOR MODULE USING SAME
Publication number
20130038388
Publication date
Feb 14, 2013
Shiueshr JIANG
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
ZERO-CROSSING DETECTION CIRCUIT AND COMMUTATION DEVICE USING THE ZE...
Publication number
20120326647
Publication date
Dec 27, 2012
RICHTEK TECHNOLOGY CORP.
Wei-Hsu Chang
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER