Cheongju, South Korea

Ji-Hoon Lee

This inventor holds 25 USPTO granted patents and 3 published patent applications and 2 EPO patents, primarily in Optical Film Technology. Top assignees: Samsung Electronics Co., Ltd., Samsung Sdi Co., Inc., Cheil Industries Inc.. Active years: 2002-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ji-Hoon Lee. Retrieved from https://idiyas.com/inventor/ji-hoon-lee-wyzxpcj7

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

Calculating rank
USPTO Granted Patents = 25 

% Patents Active = 88.0


Average Co-Inventor Count = 3.1

ph-index = 8

Forward Citations = 253(Granted Patents)


Location History:

  • Taejeon, KR (2002)
  • Deagu, KR (2002)
  • Taogu-Kwangyokshi, KR (2004)
  • Taegu-Kwangyokshi, KR (2004)
  • Daejeon-si, KR (2007)
  • Choonglu-si, KR (2009)
  • Cheongju-si, KR (2008 - 2013)
  • Suwon-si, KR (2014 - 2018)
  • Jeonju-si, KR (2018)
  • Gyeongsangnam-do, KR (2018)

Company Filing History:


Years Active: 2002-2018

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Areas of Expertise:
Optical Film
Display Device
Mesh Network
Data Forwarding
Organic Electroluminescent
Thermal Stability
Channel Scanning
Power-Saving
Dispersion Control Fiber
Light-Emitting Polymers
Emoticon Editing
Wireless LAN
25 patents (USPTO):Explore Patents

Title: The Innovative Journey of Ji-Hoon Lee in Advanced Patenting

Introduction: Ji-Hoon Lee is an accomplished inventor based in Cheongju-si, South Korea, renowned for his significant contributions to the fields of optical films and electronic device functionalities. With a remarkable portfolio that boasts 25 patents, Ji-Hoon exemplifies the innovative spirit present in today’s technology landscape.

Latest Patents: Among his latest inventions, Ji-Hoon has developed a compensation film and an optical film and display device that includes this unique film. The compensation film features a first retardation layer and a second retardation layer, both comprising polymers with negative birefringence. The first retardation layer is designed to achieve an in-plane retardation (R) ranging from approximately 180 nanometers to 300 nanometers for incident light at a wavelength of around 550 nanometers. The second layer, on the other hand, is optimized for in-plane retardation in the range of 60 nanometers to 170 nanometers. Additionally, Ji-Hoon has introduced a method, apparatus, and computer-readable medium for activating the functionality of an electronic device based on user presence, which enhances user interaction with devices through gesture recognition.

Career Highlights: Ji-Hoon Lee has had an impactful career at notable companies, including Samsung Electronics Co., Ltd. and Samsung SDI Co., Inc. His work within these organizations has pushed the boundaries of electronic and optical technologies, leading to numerous advancements that have shaped the industry.

Collaborations: Throughout his career, Ji-Hoon has collaborated with other talented individuals, including his coworkers Jung-ho Kim and Jae-Hoon Kim. These partnerships have fostered an environment of innovation, allowing for the collective advancement of technology through shared expertise and insights.

Conclusion: Ji-Hoon Lee's contributions to technology, exemplified by his extensive patent portfolio, highlight his role as a pioneering inventor. His work not only showcases his dedication to advancing optical and electronic innovations but also sets a benchmark for future possibilities in these dynamic fields. As he continues to explore new horizons, Ji-Hoon remains a key figure in the evolving landscape of technological advancements.

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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