Wuhan, China

Changhyun Lee

This inventor holds 2 USPTO granted patents and 2 published patent applications. Top assignee: Yangtze Memory Technologies Co., Ltd.. Active years: 2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Changhyun Lee. Retrieved from https://idiyas.com/inventor/changhyun-lee-ijln6wgz

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 = 3.0

ph-index = 1


Company Filing History:


Years Active: 2026

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2 patents (USPTO):Explore Patents

Title: Changhyun Lee: Innovator in NAND Memory Technology

Introduction

Changhyun Lee is a prominent inventor based in Wuhan, China. He has made significant contributions to the field of NAND memory technology, holding 2 patents that showcase his innovative approaches to memory operation.

Latest Patents

One of his latest patents is titled "Architecture and method for NAND memory operation." This patent describes a method for programming a memory cell string, where a programming voltage is applied to a selected word line to program a specific memory cell. The method involves applying a first pass voltage on a first word line coupled to a first memory cell, a second pass voltage on a second word line coupled to a second memory cell, and a third pass voltage on a third word line coupled to a third memory cell. Notably, the second pass voltage is higher than the first and third pass voltages.

Another patent under his name is also titled "Architecture and method for NAND memory operation." This patent outlines an example memory device that includes a first memory cell string, word lines, and processing circuitry. The processing circuitry is designed to apply various bias voltages during different stages of operation, ensuring optimal performance of the memory device.

Career Highlights

Changhyun Lee is currently employed at Yangtze Memory Technologies, Ltd., where he continues to develop cutting-edge memory solutions. His work has positioned him as a key player in the advancement of NAND memory technology.

Collaborations

He collaborates with notable colleagues, including Haibo Li and XiangNan Zhao, who contribute to the innovative environment at Yangtze Memory Technologies, Ltd.

Conclusion

Changhyun Lee's contributions to NAND memory technology through his patents and work at Yangtze Memory Technologies, Ltd. highlight his role as a significant inventor in the field. His innovative methods and collaborative efforts continue to drive advancements in memory technology.

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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