For the Inventor, By the Inventor

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Shanghai, China

Bcd Semiconductor Manufacturing Limited

USPTO Granted Patents = 42

% Expired Patents = 7.1

Forward Citations = 338

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66 inventors (with patents filed for the assignee):

Yajiang Zhu (11 out of 22 patents)

Chao Chen (8 out of 82 patents)

Qiang Zong (5 out of 7 patents)

4. ShaoHua Fang (5 out of 7 patents)

5. Xuegang Ren (4 out of 8 patents)

6. Ruixia Fei (4 out of 6 patents)

7. Jia Xie (4 out of 5 patents)

8. Chao Gao (3 out of 14 patents)

9. Na Liu (3 out of 9 patents)

10. Jianhua Duan (3 out of 6 patents)

11. Pingan Zhao (3 out of 4 patents)

12. Shuzhuang Lv (3 out of 5 patents)

13. Zheng Ying (3 out of 9 patents)

14. Xujiang Huang (3 out of 4 patents)

15. Rui-Xia Fei (3 out of 3 patents)

Core Competencies:

LED Driver

Power Converter

Switch Mode Power Supply

PWM Controller

Buck Converter

Battery Protection

Power Factor

Voltage Overshoot

Pulse Frequency Modulation

Synchronous Rectifier

Low Current Startup

Charge Pump

42 patents: Sort by Forward Citations

1. 10483753 - Embedded battery protection system (2019-11-19),

2. 10462868 - Circuit and method for driving LED lamp with a dimmer (2019-10-29),

3. 10091844 - Power supply for LED lamp with TRIAC dimmer (2018-10-02),

4. 10020744 - Circuits and methods for reducing output voltage overshoot of switch mode power supply (2018-07-10),

5. 9853542 - Constant-voltage and constant-current buck converter and control circuit (2017-12-26),

6. RE46369 - Control circuits and methods for switching mode power supplies (2017-04-17),

7. 9520868 - Power transistor driving circuits and methods for switching mode power supplies (2016-12-13),

8. 9318962 - Circuits and methods for reducing output voltage overshoot of switch mode power supply (2016-04-19),

9. 9134349 - Amplifier circuits and methods (2015-09-15),

10. 8971060 - Method and apparatus for controlling a switching mode power supply during transition of load conditions to minimize instability (2015-03-03),

11. 8964415 - Circuits and methods for increasing power factor of switch mode power supply (2015-02-24),

12. 8897039 - Method and system for pulse frequency modulated switching mode power supplies (2014-11-25),

13. 8891259 - Control circuit and method for audible noise suppression in a power converter (2014-11-18),

14. 8878448 - Circuit and method for driving LED lamp with a dimmer (2014-11-04),

15. 8804380 - Zero standby switching power supply solution (2014-08-12),

Company Overview

Bcd Semiconductor Manufacturing Limited, based in Shanghai, specializes in advanced semiconductor solutions, focusing on embedded battery protection and LED lamp control technologies. The company is recognized for its expertise in switch mode power supplies, power factor correction, and constant current output systems. Additionally, Bcd Semiconductor develops innovative PWM control circuits and charge pump technologies, ensuring robust short circuit protection in its products. The firm plays a significant role in enhancing energy efficiency and reliability across various electronic applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

42 Patents

#79 in Shanghai

#760 in China

#16,374 in the World

Shanghai, China

Bcd Semiconductor Manufacturing Limited

Forward Citations = 338

66 inventors:

Yajiang Zhu (11 out of 22 patents)

Chao Chen (8 out of 82 patents)

Qiang Zong (5 out of 7 patents)

4. ShaoHua Fang (5 out of 7 patents)

5. Xuegang Ren (4 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Bcd Semiconductor Manufacturing Limited. Retrieved from https://idiyas.com/company/bcd-semiconductor-manufacturing

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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