Seoul, South Korea

Sejin Choi

This inventor holds 2 USPTO granted patents and 5 published patent applications and 2 EPO patents. Top assignee: Lg Electronics Inc.. Active years: 2025-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sejin Choi. Retrieved from https://idiyas.com/inventor/sejin-choi-gkkruq1s

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

Calculating rank
USPTO Granted Patents = 2 

% Patents Active = 50.0

 

Average Co-Inventor Count = 5.0

ph-index = 1


Company Filing History:


Years Active: 2025-2026

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2 patents (USPTO):Explore Patents

Title: Sejin Choi - Innovator in Mask Technology

Introduction

Sejin Choi is a notable inventor based in Seoul, South Korea. He has made significant contributions to the field of mask technology, particularly in the design and functionality of air purification systems. With a total of 2 patents, Choi is recognized for his innovative approaches to enhancing user experience and safety in mask usage.

Latest Patents

Choi's latest patents include a unique mask apparatus that features a mask body with a suction hole and a discharge hole. This design incorporates a face guard that is detachably coupled to the rear surface of the mask body using magnetic force. Additionally, it includes an air cleaning module that filters external air and supplies the purified air to a designated breathing space. The face guard is equipped with magnetic bodies strategically placed to enhance its functionality.

Another patent focuses on a mask apparatus with a rear surface inlet and outlet. This design consists of a mask body that includes a rear body and a front body, which together provide an inlet and an outlet. The face guard accommodates a portion of the user's face and defines a respiration space. The air cleaning module purifies the air introduced through the rear surface, ensuring that the user breathes clean air.

Career Highlights

Sejin Choi is currently employed at LG Electronics Inc., where he continues to innovate and develop advanced technologies in the field of personal protective equipment. His work is characterized by a commitment to improving the safety and comfort of users through innovative design.

Collaborations

Choi collaborates with talented individuals such as Hojung Kim and Chiyoung Choi, who contribute to the development of cutting-edge technologies in their respective fields. Their teamwork fosters an environment of creativity and innovation.

Conclusion

Sejin Choi's contributions to mask technology exemplify the importance of innovation in enhancing user safety and comfort. His patents reflect a forward-thinking approach that addresses contemporary challenges in air purification and personal protection.

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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