Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11422645 | Wireless input component and operation method thereof | — | 2022-08-23 |
| 11313661 | Electromagnetic induction type coordinate positioning apparatus | — | 2022-04-26 |
| 11256343 | Electromagnetic induction type coordinate positioning apparatus | — | 2022-02-22 |
| 11249566 | Pointer device | — | 2022-02-15 |
| 11221721 | Electromagnetic induction type coordinate positioning apparatus | — | 2022-01-11 |
| 11144169 | Electromagnetic induction type coordinate positioning apparatus | — | 2021-10-12 |
| 10787026 | Ink-type pointer | Chung-Hsuan Li | 2020-09-29 |
| 10712838 | Automatic pencil type pointer | Chung-Hsuan Li | 2020-07-14 |
| 10691229 | Pointer | Chung-Hsuan Li | 2020-06-23 |
| 10635197 | Lateral pressure sensing pointer | Chung-Hsuan Li | 2020-04-28 |
| 10613648 | Pressure sensing pointer | Chung-Hsuan Li | 2020-04-07 |
| 8355012 | Scanning method for determining a touch position of a touch input apparatus | Wei-Chou Chen | 2013-01-15 |
| 8350165 | Flexible tablet | Chung-Fu Mao, Chien-Chia Lien, Kuang-Yao Hsieh | 2013-01-08 |
| 8228157 | Layout for inductive loops of the electromagnetic-induction system | — | 2012-07-24 |
| 7358964 | Electromagnetic inductive system with multi-induction loop layout and battery less pointer device and its method for locating the coordinate | Ching-Chuan Chao | 2008-04-15 |
| 7176907 | Device and method for pointer system of digitizer tablet | Ching-Chuan Chao | 2007-02-13 |
| 6999067 | Electromagnetic induction pen-like device with writing function | Ching-Chuan Chao, Ping-Hung Chen | 2006-02-14 |
| 6930670 | Computer peripheral input system with two input types and method of data communication for the same | Ching-Chuan Chao | 2005-08-16 |
| 6909426 | Tablet system with inductive loops and cord less-battery less pointer apparatus controlled by multi-channel switches set and method for transmitting and receiving its signal | Ching-Chuan Chao | 2005-06-21 |
| 6727439 | Pressure sensitive pen | Ching-Chuan Chao, Bor-Sen Chang | 2004-04-27 |