Beijing Sigma Microelectronics Co., Ltd

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method and device for calibrating RC oscillator, storage medium and...
- Patent number 10,742,223
- Issue date Aug 11, 2020
- Beijing Sigma Microelectronics Co., Ltd
- Zhiqian Li
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Electronic cigarette, cigarette rod, cigarette cartridge and recog...
- Patent number 10,159,281
- Issue date Dec 25, 2018
- Beijing Sigma Microelectronics Co., Ltd
- Zhiqian Li
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES

Patents Applicationslast 30 patents

Information Patent Application
Method and Device for Calibrating RC Oscillator, Storage Medium and...
- Publication number 20190149156
- Publication date May 16, 2019
- Beijing Sigma Microelectronics Co., Ltd
- Zhiqian Li
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
RECEPTION DEVICE FOR WIRELESS CHARGING AND TERMINAL DEVICE
- Publication number 20180323633
- Publication date Nov 8, 2018
- BEIJING SIGMA MICROELECTRONICS CO., LTD
- Bingjie CHEN
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
ELECTRONIC CIGARETTE, CIGARETTE ROD, CIGARETTE CARTRIDGE AND RECOGN...
- Publication number 20170000192
- Publication date Jan 5, 2017
- Beijing Sigma Microelectronics Co., Ltd
- Zhiqian LI
- A24 - TOBACCO CIGARS CIGARETTES SMOKERS' REQUISITES

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