Shang-Tai Yeh

This inventor holds 113 USPTO granted patents and 2 published patent applications, primarily in Touch Technology (CPC class G06F3-044). Top assignee: Egalax_empia Technology Inc.. Active years: 2012-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shang-Tai Yeh. Retrieved from https://idiyas.com/inventor/shang-tai-yeh

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

USPTO Granted Patents = 113 (Patent Applications = 2)

% Patents Active = 96.5

Average Co-Inventor Count = 1.7

ph-index = 6

Forward Citations = 195(Granted Patents)

Forward Citations (Not Self Cited) = 172(Dec 10, 2025)

Inventors with similar research interests:

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Company Filing History:

113 out of 282

Egalax_empia Technology Inc.

patents

Years Active: 2012-2025

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Areas of Expertise:

Touch Panel

Capacitive Sensor

Stylus

Touch Screen

Pressure Calibration

Touch Sensitive Processing

Human-Machine Interface

Electronic System

Noise Reduction

Signal Transmission

Flexible Touch Screen

Touch Module

113 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12340037 - Active stylus and processing circuits and method thereof, touch sensitive processing apparatus and method thereof, and touch system (2025-06-24),

2. 12282615 - Passive capactive stylus and eraser cap (2025-04-21),

3. 12277289 - Touch module and touch screen using same (2025-04-14),

4. 12086360 - Pressure calibration method and touch sensitive process apparatus and touch system implementing the method (2024-09-10),

5. 12026345 - Touch panel for capacitive sensing with reduced noise (2024-07-02),

6. 11921947 - Electronic system and touch sensitive processing apparatus for touch function setting and activating and method thereof (2024-03-05),

7. 11880534 - Touch sensitive processing method, apparatus and touch system (2024-01-23),

8. 11775113 - Touch sensitive processing apparatus and touch system for calculating pressure calibration function and method thereof (2023-10-03),

9. 11698692 - Transmitter and method for transmitting signal value (2023-07-11),

10. 11669214 - System, method and apparatus with reduction of static electric charges effect on touch panel detection (2023-06-06),

11. 11669209 - Touch sensitive processing method, apparatus and touch system (2023-06-06),

12. 11662844 - Touch sensitive processing apparatus, method and electronic system (2023-05-30),

13. 11662842 - Touch sensitive processing method and apparatus and touch system for receiving information from transmitter (2023-05-30),

14. 11630532 - Touch sensitive processing apparatus and method thereof and touch system (2023-04-18),

15. 11614831 - Pressure calibration method and touch sensitive process apparatus and touch system implementing the method (2023-03-28),

Shang-Tai Yeh is a renowned inventor and patent holder from Taipei, Taiwan with a total of 100 patents. He is constantly pushing the boundaries of technology and his latest patents are definitely indicative of that.

His latest work consists of a stylus that is capable of transmitting electrical signals carrying pressure information, which is perfect for artists and graphic designers. This stylus comprises a first component with variable impedance reflecting a pressure, a second component with fixed impedance, and a conductive tip section that transmits electrical signals composed of the first and second signals simultaneously.

Furthermore, Yeh has also invented a touch-sensitive processing apparatus, system, and operating method thereof for receiving electrical signals carrying pressure information transmitted from a first stylus. This invention is groundbreaking, as through it, users can despread the electrical signals and calculate the pressure information based on a first signal strength ratio of a first part of the received electrical signal and a second part of the received electrical signal.

Yeh has worked with some of the biggest companies in the world, including EGALAX and EMPIA TECHNOLOGY INC., where he likely provided valuable insight and contributed to their engineering and manufacturing operations. Additionally, he has collaborated with some influential colleagues, such as Chin-Fu Chang and Shun-Lung Ho, who are also prominent figures in the technology industry.

Overall, Shang-Tai Yeh's contributions have made a significant impact in the field of stylus development and touch-sensitive processing apparatuses. It will be exciting to see what other innovative inventions he will come up with in the future.

Profile summary based on public USPTO records.

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]

2 patents pending: