Shanghai, China

Krijger De Sjef

This inventor holds 2 USPTO granted patents. Top assignee: Shanghai Yaming Lighting Co., Ltd.. Active years: 2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Krijger De Sjef. Retrieved from https://idiyas.com/inventor/krijger-de-sjef

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 4.8

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 2016

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2 patents (USPTO):Explore Patents

Title: Krijger De Sjef: Innovator in LED Technology

Introduction

Krijger De Sjef is a prominent inventor based in Shanghai, China. He has made significant contributions to the field of lighting technology, particularly in the development of integrated LED modules. With a total of two patents to his name, De Sjef is recognized for his innovative solutions that enhance the efficiency and cost-effectiveness of LED lighting.

Latest Patents

De Sjef's latest patents include an integrated LED module and a drive circuit for LED modules. The integrated LED module features a light-transmitting plate with a heat-conducting substrate and a transparent package. It includes an LED array sealed within the plate, a drive circuit that converts external power into a 12V-75V forward voltage, and a heat sink. This design addresses the issues of size and weight in traditional LED lamps, reducing material costs and assembly time. The drive circuit for the LED module consists of an LED array with parallel groups connected in series, a power supply module, and a control module. This invention allows for regular AC power supply to the LED array without the need for an electrolytic capacitor, optimizing bulb performance and reducing manufacturing costs.

Career Highlights

Krijger De Sjef works at Shanghai Yaming Lighting Co., Ltd., where he continues to innovate in the field of LED technology. His work has significantly impacted the lighting industry, providing solutions that enhance product performance while lowering costs.

Collaborations

De Sjef collaborates with talented coworkers, including Xiaoliang Xu and Baoquan Li, who contribute to the innovative projects at Shanghai Yaming Lighting Co., Ltd.

Conclusion

Krijger De Sjef is a key figure in the advancement of LED technology, with patents that address critical challenges in the industry. His work exemplifies the spirit of innovation and the pursuit of efficiency in lighting solutions.

Profile summary based on public USPTO records.
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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