This inventor holds 1 USPTO granted patent and 1 published patent application and 2 EPO patents. Top assignees: Nsys Corporation, Samsung Sdi., Ltd.. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 1 
1 out of 281 Years Active: 2026
Title: Leehwan An and Battery Separator Inspection Innovation.
Introduction
Leehwan An is an inventor associated with Yongin, South Korea. His work includes a patented system designed to identify black spots in separators used in rechargeable battery cells. He has 1 patent.
Latest Patents
An’s patent, “System for Finding Black Spots in a Separator from a Rechargeable Battery Cell,” describes a process for inspecting and sorting separator samples. A rewinder extracts and winds a separator from a battery cell, while a foreign-material remover clears contaminants from it. A first camera captures an image of areas where black spots may be present and records their positions. A second camera then examines selected areas to capture images of suspected black spots and other foreign material. Deep-learning software analyzes both sets of images, and a sorting unit displays the positions of spots identified through the secondary selection process.
Career Highlights
An has been associated with Nsys Corporation and Samsung SDI Co., Ltd. His patent focuses on automated visual inspection and deep-learning-based classification for battery separator quality control.
Collaborations
His listed coworkers include Jungyi Yu and Bong-Kil Moon.
Conclusion
Leehwan An’s patented system combines camera-based inspection and deep learning to help identify and locate black spots in rechargeable battery separators.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile