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Chu-Pei, Taiwan

Logah Technology Corp.

USPTO Granted Patents = 21

% Expired Patents = 95.2

Forward Citations = 40

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15 inventors (with patents filed for the assignee):

Cheng-Chia Hsu (17 out of 19 patents)

Teng-Kang Chang (12 out of 13 patents)

Yu-Cheng Pan (7 out of 15 patents)

4. Yun-Ching Wu (5 out of 5 patents)

5. Yung-Chin Chou (5 out of 5 patents)

6. Ho-Wen Chen (2 out of 3 patents)

7. Teng-Ho Wu (2 out of 3 patents)

8. Pao-Hung Lin (1 out of 1 patent)

9. Wei-Chun Yeh (1 out of 1 patent)

10. Chih-Ping Lu (1 out of 1 patent)

11. Chih-Shen Chiang (1 out of 1 patent)

12. Cheng Chia Hsu (1 out of 1 patent)

13. Teng Kang Chang (1 out of 1 patent)

14. Chia-Yuan Chen (1 out of 1 patent)

15. Jong-Chi Tseng (1 out of 1 patent)

21 patents: Sort by Forward Citations

1. 8378962 - LCD backlight driving device with an isolating transformer (2013-02-19),

2. 8363434 - Interleaved bridgeless power factor corrector and controlling method thereof (2013-01-29),

3. 8093829 - Lamp driving device with open voltage control (2012-01-10),

4. 7893805 - Transformer (2011-02-22),

5. 7884796 - Lamp driving structure for backlight module (2011-02-08),

6. 7834559 - Lamp circuit of liquid crystal device backlight source (2010-11-16),

7. 7741789 - Locked phase active power current control circuit (2010-06-22),

8. 7675243 - Two-end driven lamp controlling device (2010-03-09),

9. 7639111 - High voltage transformer for backlight power source (2009-12-29),

10. 7612644 - Winding structure of a transformer (2009-11-03),

11. 7612643 - Winding structure of a transformer (2009-11-03),

12. 7612642 - Winding structure of a transformer (2009-11-03),

13. 7579936 - Choke transformer used in liquid crystal display backlight driver (2009-08-25),

14. 7538651 - Winding structure of a transformer (2009-05-26),

15. 7425139 - Fixation structure for fixing a lamp on a printed circuit board (2008-09-16),

Company Overview

Logah Technology Corp., based in Chu-Pei, Taiwan, specializes in advanced technology solutions, focusing on the development and manufacturing of high-performance electronic components and systems. The company is recognized for its expertise in areas such as telecommunications, consumer electronics, and industrial automation. By leveraging innovative engineering practices, Logah aims to enhance connectivity and efficiency across various sectors, contributing to the evolution of smart technologies and integrated systems.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

21 Patents

#3 in Chu-Pei

#799 in Taiwan

#29,961 in the World

Chu-Pei, Taiwan

Logah Technology Corp.

Forward Citations = 40

15 inventors:

Cheng-Chia Hsu (17 out of 19 patents)

Teng-Kang Chang (12 out of 13 patents)

Yu-Cheng Pan (7 out of 15 patents)

4. Yun-Ching Wu (5 out of 5 patents)

5. Yung-Chin Chou (5 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Logah Technology Corp.. Retrieved from https://idiyas.com/company/logah-technology

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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