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Bucheon, South Korea

Fairchild Korea Semiconductor Ltd.

USPTO Granted Patents = 354

% Expired Patents = 9.3

EPO Patents = 1

Trademarks = 4

Forward Citations = 2,854

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357 inventors (with patents filed for the assignee):

Young-Bae Park (29 out of 32 patents)

Hang-Seok Choi (29 out of 39 patents)

Gwan-Bon Koo (29 out of 32 patents)

4. Jin-Tae Kim (23 out of 26 patents)

5. O-seob Jeon (20 out of 20 patents)

6. Seung-won Lim (17 out of 17 patents)

7. Hyun-Chul Eom (16 out of 16 patents)

8. Gye-Hyun Cho (16 out of 18 patents)

9. Keun-hyuk Lee (16 out of 16 patents)

10. Joon-seo Son (13 out of 15 patents)

11. Chang-Ki Jeon (13 out of 19 patents)

12. Jong-Tae Hwang (12 out of 18 patents)

13. Kyung-Oun Jang (11 out of 13 patents)

14. Gwanbon Koo (10 out of 39 patents)

15. Dong-Hwan Kim (10 out of 37 patents)

Core Competencies:

Power Semiconductor Device

Battery Management System

Switch Control Circuit

Power Supply

LED Lighting Circuit

Overcurrent Protection

Phase-Cut Dimming

Resonant Converter

Wireless Power Transfer

Voltage Measuring Apparatus

Piezoelectric Driving Circuit

Power Factor Correction

354 patents: Sort by Forward Citations

1. 11121559 - Method and apparatus for charging a battery (2021-09-14),

2. 10135263 - Method and apparatus for charging a battery (2018-11-20),

3. 9947742 - Power semiconductor device (2018-04-17),

4. 9917503 - Overcurrent protection circuit and power factor correction circuit comprising the same (2018-03-13),

5. 9900948 - Reference voltage generator and light emitting diode device comprising the same (2018-02-20),

6. 9900938 - LED lighting circuit with ripple reducer (2018-02-20),

7. 9887280 - Superjunction semiconductor device (2018-02-06),

8. 9872349 - Control system for phase-cut dimming (2018-01-16),

9. 9837909 - Mode selection circuit and switch control circuit including the mode selection circuit and multi functions pin (2017-12-05),

10. 9837893 - Charge pump and switch control circuit (2017-12-05),

11. 9831777 - Switch control circuit and converter including the same (2017-11-28),

12. 9826608 - Standby current supplier (2017-11-21),

13. 9825541 - Output current estimating method and power supply device using the same (2017-11-21),

14. 9825453 - Protection mode control circuit, switch control circuit including the protection mode control circuit and power supply device including the switch control circuit (2017-11-21),

15. 9812856 - Modulation mode control circuit, switch control circuit including the modulation mode control circuit and power supply device including the switch control circuit (2017-11-07),

Company Overview

Fairchild Korea Semiconductor Ltd., located in Bucheon, South Korea, specializes in the development and manufacturing of power semiconductor devices. The company focuses on innovative technologies that enhance energy efficiency and performance across various applications. Its core technology areas include power semiconductor devices, battery management systems, switch control circuits, and power supply solutions. Additionally, Fairchild is involved in LED lighting circuits, overcurrent protection, phase-cut dimming, and resonant converters, contributing to advancements in power management and electronic systems.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

354 Patents

#1 in Bucheon

#74 in South Korea

#2,587 in the World

Bucheon, South Korea

Fairchild Korea Semiconductor Ltd.

Forward Citations = 2,854

357 inventors:

Young-Bae Park (29 out of 32 patents)

Hang-Seok Choi (29 out of 39 patents)

Gwan-Bon Koo (29 out of 32 patents)

4. Jin-Tae Kim (23 out of 26 patents)

5. O-seob Jeon (20 out of 20 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Fairchild Korea Semiconductor Ltd.. Retrieved from https://idiyas.com/company/fairchild-korea-semiconductor

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

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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