Taipei, Taiwan

Ming-Chih Chang

This inventor holds 4 USPTO granted patents. Top assignee: Primax Electronics Ltd.. Active years: 1999-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ming-Chih Chang. Retrieved from https://idiyas.com/inventor/ming-chih-chang-b0f8s46t

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 1.1

ph-index = 4

Forward Citations = 141(Granted Patents)


Company Filing History:


Years Active: 1999-2003

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4 patents (USPTO):Explore Patents

Title: Innovations of Ming-Chih Chang

Introduction

Ming-Chih Chang is a notable inventor based in Taipei, Taiwan. He has made significant contributions to the field of technology, particularly in computer systems and user interface devices. With a total of 4 patents to his name, his work reflects a commitment to enhancing user experience and security in digital environments.

Latest Patents

One of his latest patents is a "Computer system with an external and portable electronic key for encryption and decryption processes." This invention provides a computer system that includes a system memory, a processor, a cryptoprogram, an I/O port, and an electronic key. The electronic key can be inserted into and removed from the I/O port and contains a programmable memory that stores passwords. The cryptoprogram is utilized to encrypt and decrypt programs or files stored in the system memory. Encryption is accomplished according to a password stored in the programmable memory of the electronic key. During decryption, the cryptoprogram searches for the corresponding password in the programmable memory and decrypts the program or file if the password is found.

Another significant patent is the "Method of utilizing a three-dimensional mouse in the Windows operating system." This method allows a three-dimensional (3-D) mouse to emulate the functions of the IntelliMouse from Microsoft Corporation. It includes control of the scroll bars of the active window and special functions such as auto-scrolling and fast-scrolling operations. Provided that the active window can read IntelliMouse-compliant commands, the 3-D mouse can also perform standard IntelliMouse functions, such as scrolling and resizing the active window.

Career Highlights

Ming-Chih Chang is currently employed at Primax Electronics Ltd., where he continues to innovate and develop new technologies. His work at Primax has allowed him to focus on creating solutions that enhance the functionality and security of electronic devices.

Collaborations

Ming-Chih has collaborated with various professionals in his field, including his coworker Han-Che Wang. Their joint efforts have contributed to the advancement of technology in user interface design and security systems.

Conclusion

Ming-Chih Chang's contributions to technology through his patents demonstrate his innovative spirit and dedication to improving user experiences. His work continues to influence the development of secure and efficient electronic systems.

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]
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