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Richtek Technology Corporation

USPTO Granted Patents = 790

EPO Patents = 4

Trademarks = 10

Forward Citations = 4,218

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483 inventors (with patents filed for the assignee):

Isaac Y Chen (96 out of 101 patents)

Jing-Meng Liu (74 out of 108 patents)

Tsung-Yi Huang (56 out of 106 patents)

4. Chien-Fu Tang (53 out of 55 patents)

5. Kuo-Chi Liu (50 out of 55 patents)

6. Wei-Hsu Chang (47 out of 53 patents)

7. Shui-Mu Lin (47 out of 49 patents)

8. Liang-Pin Tai (44 out of 45 patents)

9. Tsung-Wei Huang (42 out of 58 patents)

10. Tzu-Chen Lin (40 out of 42 patents)

11. Kwan-Jen Chu (39 out of 53 patents)

12. Nien-Hui Kung (35 out of 51 patents)

13. Ta-Yung Yang (35 out of 36 patents)

14. Ta-Yung Yang (34 out of 300 patents)

15. Chung-Lung Pai (34 out of 38 patents)

Core Competencies:

Power Management Integrated Circuit

Switching Regulator

Power Factor Correction

Flyback Converter

Resonant Converter

Buck-Boost Converter

Wireless Power Transmission

High Voltage Device

Temperature Compensated Oscillator

Chip Packaging

Impedance-Tracking Circuit

Active EMI Filter

790 patents: Sort by Forward Citations

1. 12512799 - Class-D amplifying system and power converter circuit thereof (2025-12-30),

2. 12512395 - Chip packaging method and chip package unit (2025-12-30),

3. 12510091 - Method and system for failure predication of cooling fan (2025-12-30),

4. 12500519 - Switching DC-to-DC converter (2025-12-16),

5. 12490351 - Dimming circuit and method for use in dimming control (2025-12-02),

6. 12483199 - Amplifier circuit having low parasitic pole effect and buffer circuit thereof (2025-11-25),

7. 12483140 - Switching regulator and control circuit thereof and quick response method (2025-11-25),

8. 12483121 - Power supply system and power factor correction control circuit and control method thereof (2025-11-25),

9. 12483120 - Power supply system with power factor correction(PFC) and control method thereof (2025-11-25),

10. 12481300 - Power management integrated circuit (PMIC) and power management system (2025-11-25),

11. 12456926 - Voltage regulator for use in flyback converter (2025-10-28),

12. 12456915 - Reducing output ripple voltage of multiple switched capacitor circuits by reducing overlapping of dead time (2025-10-28),

13. 12456913 - Resonant switched capacitor voltage converter and control method thereof (2025-10-28),

14. 12438536 - Half-bridge driver and half-bridge driving method having slew rate adjustment function (2025-10-07),

15. 12431817 - Flyback power converter and secondary side power supply circuit and control method thereof (2025-09-30),

Richtek Technology Corporation is a leading analog and mixed-signal semiconductor company founded in 1998. We specialize in providing innovative power management solutions for a wide range of applications. Our high-performance products are designed to enhance energy efficiency and reliability in consumer electronics, automotive systems, industrial equipment, and more. With a strong focus on research and development, Richtek continuously strives to deliver cutting-edge solutions that meet the evolving needs of the industry.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

790 Patents

#1 in Zhubei

#38 in Taiwan

#1,231 in the World

Richtek Technology Corporation

Forward Citations = 4,218

483 inventors:

Isaac Y Chen (96 out of 101 patents)

Jing-Meng Liu (74 out of 108 patents)

Tsung-Yi Huang (56 out of 106 patents)

4. Chien-Fu Tang (53 out of 55 patents)

5. Kuo-Chi Liu (50 out of 55 patents)

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