Dongdong Peng

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Changzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Adjusting mechanism and laser collimator having the same
- Patent number 9,952,402
- Issue date Apr 24, 2018
- Changzhou Huada Kejie Opto-Electro Instrument Co., Ltd.
- Ou Zhang
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Adjusting Mechanism and Laser Collimator Having the Same
- Publication number 20160103295
- Publication date Apr 14, 2016
- Changzhou Huada Kejie Opto-Electro Instrument Co., Ltd
- Ou Zhang
- G02 - OPTICS
Information Patent Application
LASER MODULE CONTROL CIRCUIT
- Publication number 20150340839
- Publication date Nov 26, 2015
- CHANGZHOU HUADA KEJIE OPTO-ELECTRO INSTRUMENT CO., LTD.
- Ou Zhang
- H01 - BASIC ELECTRIC ELEMENTS