Yongjian Sun

Title: Innovations of Inventor Yongjian Sun

Introduction

Yongjian Sun is a prominent inventor based in San Jose, California, known for his significant contributions to the field of hard disk drive technology. With a total of eight patents to his name, he has developed innovative methods and systems that enhance the performance and reliability of magnetic sensors and air bearing surfaces.

Latest Patents

One of Yongjian Sun's latest patents focuses on reducing the height of a defect associated with an air bearing surface of a hard disk drive slider. This method involves ion milling at two different angles to effectively remove portions of the air bearing surface, thereby minimizing defects. Another notable patent involves a magnetic sensor that features a free magnetic layer and a nanocrystalline seed layer, which improves the orientation of the hard bias layer. This system includes an insulative amorphous material and a chromium-containing underlayer, showcasing advanced techniques in sensor design.

Career Highlights

Throughout his career, Yongjian Sun has worked with reputable companies such as Hitachi Global Storage Technologies in both the Netherlands and Amsterdam. His experience in these organizations has allowed him to refine his skills and contribute to cutting-edge technologies in data storage.

Collaborations

Yongjian Sun has collaborated with notable professionals in his field, including Cherngye Hwang and Pei Cheh Chen. These partnerships have fostered innovation and the development of advanced technologies in magnetic sensing and hard disk drives.

Conclusion

Yongjian Sun's work exemplifies the spirit of innovation in the technology sector, particularly in the realm of hard disk drives and magnetic sensors. His patents reflect a commitment to enhancing performance and reliability in data storage solutions.