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For the Inventor, By the Inventor

Seoul, South Korea

Sang-jun Choi

USPTO Granted Patents = 86 


Average Co-Inventor Count = 2.2

ph-index = 10

Forward Citations = 341(Granted Patents)

Forward Citations (Not Self Cited) = 319(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Kyungki-do, KR (1998 - 2004)
  • Gyeonggi-do, KR (2005 - 2007)
  • Seoul, KR (2000 - 2016)

Company Filing History:

goldMedal84 out of 131,611 
 
Samsung Electronics Co., Ltd.
 patents
silverMedal2 out of 787 
 
Cheil Industries Inc.
 patents

Years Active: 1998-2016

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Areas of Expertise:
Transistor Technology
Oligomer Probe Array
Photosensitive Polymers
Semiconductor Devices
Negative Resist Composition
Immersion Lithography
Cleaning Solutions
Barrier Coating Compositions
Phase Change Memory
Etchant Solutions
Thin Film Deposition
Patterning Methods
86 patents (USPTO):Explore Patents
1. 9299783 - Transistor and method of operating same (2016-03-29),
2. 8637942 - Transistor having a metal nitride layer pattern, etchant and methods of forming the same (2014-01-28),
3. 8551759 - Oligomer probe array and method of producing the same (2013-10-08),
4. 8092698 - Methods of forming semiconductor devices formed by processes including the use of specific etchant solutions (2012-01-10),
5. 8017301 - Photosensitive polymer, resist composition, and associated methods (2011-09-13),
6. 7993810 - (Meth)acrylate compound having aromatic acid labile group, photosensitive polymer, resist composition, and associated methods (2011-08-09),
7. 7713634 - Non-linear silicon compound, method of manufacturing oligomer probe array using the same, substrate for oligomer probe array with the same, and oligomer probe array with the same (2010-05-11),
8. 7709277 - PAA-based etchant, methods of using same, and resultant structures (2010-05-04),
9. 7700496 - Transistor having a metal nitride layer pattern, etchant and methods of forming the same (2010-04-20),
10. 7642042 - Polymer, top coating layer, top coating composition and immersion lithography process using the same (2010-01-05),
11. 7604918 - Photosensitive polymer and photoresist composition having the same (2009-10-20),
12. 7604917 - Polymer, top coating layer, top coating composition and immersion lithography process using the same (2009-10-20),
13. 7566773 - Photolabile compound and substrate for oligomer probe array with the same (2009-07-28),
14. 7562662 - Cleaning solution and cleaning method of a semiconductor device (2009-07-21),
15. 7544985 - Semiconductor capacitor structure and method for manufacturing the same (2009-06-09),

Title: Sang-jun Choi: Pioneering Inventor from Seoul

Introduction: Sang-jun Choi is a renowned inventor hailing from Seoul, South Korea, known for his groundbreaking contributions to various technological fields.

Latest Patents: Sang-jun Choi holds several patents in the areas of artificial intelligence, renewable energy, and biotechnology, showcasing his diverse range of expertise and innovative thinking.

Career Highlights: With a career spanning over two decades, Sang-jun Choi has worked with leading research institutions and tech companies, consistently pushing the boundaries of innovation. His work has been instrumental in shaping the future of technology.

Collaborations: Throughout his career, Sang-jun Choi has collaborated with top scientists, engineers, and researchers from around the globe, fostering a culture of innovation and knowledge sharing. His collaborative efforts have led to the development of cutting-edge technologies.

Conclusion: Sang-jun Choi's passion for innovation and his relentless pursuit of excellence have solidified his position as a trailblazer in the world of inventions. His work continues to inspire the next generation of inventors and researchers worldwide.

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