For the Inventor, By the Inventor

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Hong Kong, China

Tpo Hong Kong Holding Limited

USPTO Granted Patents = 58

EPO Patents = 22

Forward Citations = 233

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61 inventors (with patents filed for the assignee):

Keitaro Yamashita (5 out of 48 patents)

Naoki Sumi (4 out of 6 patents)

Kazuyuki Hashimoto (3 out of 53 patents)

4. Minoru Shibazaki (3 out of 20 patents)

5. Hidetoshi Watanabe (3 out of 36 patents)

6. Masaru Yasui (3 out of 16 patents)

7. John R A Ayres (3 out of 12 patents)

8. Masakatsu Yamashita (3 out of 3 patents)

9. Shuji Hagino (3 out of 6 patents)

10. Yusei Ukawa (3 out of 3 patents)

11. Martinus Petrus Creusen (2 out of 28 patents)

12. Nigel David Young (2 out of 55 patents)

13. Hideo Tanaka (2 out of 3 patents)

14. Martin John Edwards (2 out of 67 patents)

15. Akihiro Iwatsu (2 out of 2 patents)

Core Competencies:

Liquid Crystal Display

Active Matrix Display

Color Filter

Transflective Display

Voltage Converter

Optical Modulation

Backlight Device

Camera Technology

Pressure Detection

Electrostatic Discharge Protection

Programmable Drivers

Electronic Device Manufacturing

58 patents: Sort by Forward Citations

1. 8547508 - Liquid crystal display device with an anisotropically reflecting layer and manufacturing method for the same (2013-10-01),

2. 8535963 - Method for manufacturing electronic device and electronic device (2013-09-17),

3. 8477130 - Display device (2013-07-02),

4. 8294853 - Color filter with optical transmissive step-forming layer and its manufacturing method, and a liquid crystal display device using the color filter (2012-10-23),

5. 8284122 - Matrix addressing method and circuitry and display device using the same (2012-10-09),

6. 8253915 - Method for manufacturing cell and cell manufactured by such method (2012-08-28),

7. 8134162 - Method for manufacturing electronic device and electronic device (2012-03-13),

8. 8026888 - Voltage supplying device (2011-09-27),

9. 8023081 - Liquid crystal display device (2011-09-20),

10. 7993804 - Color filter structure and display device using the color filter, and manufacturing method thereof (2011-08-09),

11. 7952653 - Liquid crystal display device having ESD protection circuit and method for manufacturing the same (2011-05-31),

12. 7952098 - Active matrix electronic array device (2011-05-31),

13. 7944426 - Display device and driving circuit for capacitance load thereof (2011-05-17),

14. 7928948 - Matrix addressing circuitry and liquid crystal display device using the same (2011-04-19),

15. 7915906 - Test circuit for liquid crystal display device, LCD device including test circuit, and testing method for LCD device (2011-03-29),

TPO Hong Kong Holding Limited is a company based in Hong Kong that specializes in providing innovative IT solutions and services to clients worldwide. With a team of experienced professionals, TPO aims to deliver cutting-edge technology solutions that meet the specific needs and requirements of their clients. They offer a wide range of services, including software development, system integration, cloud computing, and cybersecurity. TPO is committed to delivering high-quality solutions that drive business growth and enhance operational efficiency for their clients.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

58 Patents

#55 in Hong Kong

#511 in China

#12,103 in the World

Hong Kong, China

Tpo Hong Kong Holding Limited

Forward Citations = 233

61 inventors:

Keitaro Yamashita (5 out of 48 patents)

Naoki Sumi (4 out of 6 patents)

Kazuyuki Hashimoto (3 out of 53 patents)

4. Minoru Shibazaki (3 out of 20 patents)

5. Hidetoshi Watanabe (3 out of 36 patents)

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