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For the Inventor, By the Inventor

Hong Kong, China

Tpo Hong Kong Holding Limited


USPTO Granted Patents = 57


Forward Citations = 229

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92 inventors (with patents filed for the assignee):

goldMedal Naoki Sumi (4 out of 6 patents)

silverMedal Keitaro Yamashita (4 out of 48 patents)

bronzeMedal Kazuyuki Hashimoto (3 out of 53 patents)

4.  Minoru Shibazaki (3 out of 20 patents)

5.  Masaru Yasui (3 out of 16 patents)

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

7.  Masakatsu Yamashita (3 out of 3 patents)

8.  Yusei Ukawa (3 out of 3 patents)

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

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

11.  Hideo Tanaka (2 out of 3 patents)

12.  Hidetoshi Watanabe (2 out of 36 patents)

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

14.  Hajime Nagai (2 out of 3 patents)

15.  Hirofumi Watsuda (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

57 patents:

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. 7915906 - Test circuit for liquid crystal display device, LCD device including test circuit, and testing method for LCD device (2011-03-29),
15. 7884787 - Display device and portable information device having a mirror function (2011-02-08),
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.

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USPTO Data Jan 1 1976 - Dec 2 2025

57 Patents

#56 in Hong Kong

#509 in China

#12,145 in the World

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Hong Kong, China

Tpo Hong Kong Holding Limited

Forward Citations = 229

92 inventors:

goldMedal Naoki Sumi (4 out of 6 patents)

silverMedal Keitaro Yamashita (4 out of 48 patents)

bronzeMedal Kazuyuki Hashimoto (3 out of 53 patents)

4.  Minoru Shibazaki (3 out of 20 patents)

5.  Masaru Yasui (3 out of 16 patents)

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