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Hsinchu, Taiwan

Umax Data Systems, Inc.

USPTO Granted Patents = 157

% Expired Patents = 5.7

Forward Citations = 827

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110 inventors (with patents filed for the assignee):

Yin-Chun Huang (21 out of 60 patents)

Chih-Wen Huang (17 out of 31 patents)

Tony H Chen (16 out of 30 patents)

4. Thomas Chang (13 out of 19 patents)

5. Chien-Chin Chan (10 out of 12 patents)

6. Jen-Shou Tseng (8 out of 28 patents)

7. Guang-Shang Chang (8 out of 10 patents)

8. Po-Hua Fang (7 out of 24 patents)

9. Shih-Zheng Kuo (6 out of 26 patents)

10. Chui-Kuei Chiu (6 out of 22 patents)

11. Chuan-Yu Hsu (6 out of 11 patents)

12. Chin-I Lin (6 out of 6 patents)

13. Chen-Ho Lee (5 out of 14 patents)

14. Wen-Tso Tseng (5 out of 5 patents)

15. Kou-Lung Tseng (5 out of 5 patents)

Core Competencies:

Optical Scanner

Scanning Resolution

Image Processing

Document Detection

Light Source Mechanism

Image Sampling

Automatic Document Feeder

Calibration Device

Multi-Directional Scanning

Optical Lens

Scanning Range

Photoelectron Coupling

157 patents: Sort by Forward Citations

1. 7248387 - Scanning speed control device and method (2007-07-24),

2. 6765615 - Apparatus for reducing exposing time of an image processing system (2004-07-20),

3. 6703604 - Scanning method for detecting documents (2004-03-09),

4. 6703597 - Method for resolving photoelectron coupling in staggered charge-coupled device (2004-03-09),

5. 6693730 - Increasing scanning resolution through driving system control (2004-02-17),

6. 6687027 - Parallel driving mechanism for optical chassis (2004-02-03),

7. 6680678 - Circuit layout arrangement for key switch signal recognition (2004-01-20),

8. 6678077 - Multi-direction opening lid structure (2004-01-13),

9. 6678074 - Changeable resolution apparatus and method for optical scanner (2004-01-13),

10. 6674921 - Method of image sampling and apparatus thereof (2004-01-06),

11. 6674560 - Optical lens of optical scanner (2004-01-06),

12. 6674552 - Scanner having synchronization dynamic random access memory scanner and its related memory access method (2004-01-06),

13. 6667818 - Multiple-field sensor for scanning system (2003-12-23),

14. 6661588 - Objective lens anti-shock adjustment device (2003-12-09),

15. 6661541 - Closed circuit control device for scanner (2003-12-09),

Umax Data Systems, Inc., based in Hsinchu, Taiwan, specializes in optical scanning technology. The company develops advanced optical scanners that focus on high scanning resolution and efficient image processing capabilities. Umax's innovations include features such as document detection, sophisticated light source mechanisms, and image sampling techniques. Additionally, the organization integrates automatic document feeders and calibration devices into its products, enhancing the functionality and reliability of its scanning solutions for various applications.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

157 Patents

#49 in Hsinchu

#163 in Taiwan

#5,226 in the World

Hsinchu, Taiwan

Umax Data Systems, Inc.

Forward Citations = 827

110 inventors:

Yin-Chun Huang (21 out of 60 patents)

Chih-Wen Huang (17 out of 31 patents)

Tony H Chen (16 out of 30 patents)

4. Thomas Chang (13 out of 19 patents)

5. Chien-Chin Chan (10 out of 12 patents)

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