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Ansan-si, South Korea

Seoul Opto Device Co., Ltd.

USPTO Granted Patents = 162

EPO Patents = 6

Forward Citations = 1,236

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83 inventors (with patents filed for the assignee):

Yeo Jin Yoon (41 out of 136 patents)

Dae Sung Kal (26 out of 39 patents)

Dae Won Kim (26 out of 101 patents)

4. Won Cheol Seo (23 out of 55 patents)

5. Chung Hoon Lee (22 out of 192 patents)

6. Hwa Mok Kim (18 out of 49 patents)

7. Jae Ho Lee (18 out of 80 patents)

8. Chang Youn Kim (17 out of 36 patents)

9. Lacroix Yves (16 out of 16 patents)

10. Jong Kyu Kim (14 out of 58 patents)

11. Kyung Hee Ye (13 out of 40 patents)

12. Shiro Sakai (12 out of 49 patents)

13. Kyoung Wan Kim (11 out of 66 patents)

14. Eu Jin Hwang (11 out of 16 patents)

15. Joon Hee Lee (11 out of 37 patents)

Core Competencies:

Light Emitting Diode

High Efficiency Light Emitting Diode

Photonic Crystal Structure

Aluminum Carbide Thin Film

Wafer Level LED Package

Non-Polar Light Emitting Cells

Semiconductor Substrate

Laser Lift-Off Technique

Electrode Extensions

Vertically Stacked Light Emitting Diodes

Ultraviolet Light Emitting Diode

162 patents: Sort by Forward Citations

1. 8791483 - High efficiency light emitting diode and method for fabricating the same (2014-07-29),

2. 8742449 - Light emitting diode having electrode pads (2014-06-03),

3. 8735185 - Light emitting device and fabrication method thereof (2014-05-27),

4. 8716946 - Light emitting device for AC power operation (2014-05-06),

5. 8716727 - Ac light emitting device having photonic crystal structure and method of fabricating the same (2014-05-06),

6. 8716048 - Light emitting device and method for manufacturing the same (2014-05-06),

7. 8716046 - Light emitting device and method for manufacturing the same (2014-05-06),

8. 8704246 - Light emitting device and method of manufacturing the same (2014-04-22),

9. 8697551 - Crystalline aluminum carbide thin film, semiconductor substrate having the aluminum carbide thin film formed thereon and method of fabricating the same (2014-04-15),

10. 8680559 - Light emitting diode having electrode extensions for current spreading (2014-03-25),

11. 8664693 - Light emitting diode having algan buffer layer and method of fabricating the same (2014-03-04),

12. 8664638 - Light-emitting diode having an interlayer with high voltage density and method for manufacturing the same (2014-03-04),

13. 8648380 - Light emitting device having a plurality of non-polar light emitting cells and a method of fabricating the same (2014-02-11),

14. 8648369 - Light emitting device and method of fabricating the same (2014-02-11),

15. 8643029 - Light emitting device having a plurality of light emitting cells and package mounting the same (2014-02-04),

Seoul Opto Device Co., Ltd. is a leading manufacturer and supplier of optoelectronic devices. With a commitment to innovation and quality, we provide cutting-edge products for various industries including lighting, display, and automotive. Our extensive product range includes LEDs, laser diodes, infrared sensors, and photodetectors. With state-of-the-art manufacturing facilities and a dedicated team of experts, we ensure exceptional performance and reliability in all our products. Visit our website to explore our comprehensive range of optoelectronic solutions.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

162 Patents

#1 in Ansan-si

#131 in South Korea

#4,947 in the World

Ansan-si, South Korea

Seoul Opto Device Co., Ltd.

Forward Citations = 1,236

83 inventors:

Yeo Jin Yoon (41 out of 136 patents)

Dae Sung Kal (26 out of 39 patents)

Dae Won Kim (26 out of 101 patents)

4. Won Cheol Seo (23 out of 55 patents)

5. Chung Hoon Lee (22 out of 192 patents)

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