Stephen Yao Ching Chen

Title: **Innovative Contributions of Stephen Yao Ching Chen**

Introduction

Stephen Yao Ching Chen, a prominent inventor based in Saratoga, California, holds four patents that showcase his innovative contributions to database systems and data management. His work primarily focuses on enhancing security and efficiency within database operations, making significant strides in the field of information technology.

Latest Patents

One of Chen's latest patents revolves around the **masking of sensitive data in database columns**. This invention allows for controlled access to data elements stored within a database object. When a user requests to perform operations related to these data elements, a determination is made to assess whether any portion of the information requires masking under an access policy. If the information is deemed sensitive, the request is altered to ensure the data is retrieved in a masked condition, thereby enhancing privacy and security.

Another notable patent from Chen outlines a **method, system, and program for optimistic concurrency control** for scrollable cursors in a database. This innovation describes a process that generates a result table containing rows that meet specific query criteria. A command to perform a cursor operation on a selected row is received, and a transaction lock is obtained on the corresponding row in the base table before executing the operation. This careful control ensures data integrity and allows for efficient database interactions.

Career Highlights

Stephen Yao Ching Chen is currently affiliated with International Business Machines Corporation (IBM), where he applies his expertise in database technologies to develop advanced solutions. His dedication to innovation and improvement in data management has solidified his reputation as a leading inventor in the tech industry.

Collaborations

Throughout his career, Chen has worked alongside notable colleagues, including Desai Paramesh Sampatrai and Yun Yu Wang. These collaborations have fostered an environment of shared knowledge and creativity, contributing to the advancements in the projects they undertake together.

Conclusion

Stephen Yao Ching Chen's contributions to database technology through his inventive patents significantly enhance the management and security of sensitive information. With his ongoing work at IBM and collaborations with other innovative minds, Chen continues to play a pivotal role in shaping the future of technology and data management solutions.