DUEN-KWEI HWANG

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Taichung, TW

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Patents Grantslast 30 patents

Information Patent Grant
Lens module
- Patent number 9,523,837
- Issue date Dec 20, 2016
- Sintai Optical (Shenzhen) Co., Ltd.
- Duen-Kwei Hwang
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Zoom lens
- Patent number 9,417,427
- Issue date Aug 16, 2016
- Sintai Optical (Shenzhen) Co., Ltd.
- Duen-Kwei Hwang
- G02 - OPTICS
Information Patent Grant
Optical device
- Patent number 9,128,239
- Issue date Sep 8, 2015
- Sintai Optical (Shenzhen) Co., Ltd.
- Duen-Kwei Hwang
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
LENS MODULE
- Publication number 20150253535
- Publication date Sep 10, 2015
- SINTAI OPTICAL (SHENZHEN) CO., LTD.
- DUEN-KWEI HWANG
- G02 - OPTICS
Information Patent Application
ZOOM LENS
- Publication number 20150192755
- Publication date Jul 9, 2015
- SINTAI OPTICAL (SHENZHEN) CO., LTD.
- DUEN-KWEI HWANG
- G02 - OPTICS
Information Patent Application
Optical Device
- Publication number 20140355132
- Publication date Dec 4, 2014
- SINTAI OPTICAL (SHENZHEN) CO., LTD.
- Duen-Kwei Hwang
- G02 - OPTICS