Boworn Panyavoravaj

Title: Boworn Panyavoravaj: Disk-Drive Manufacturing and Servo-Writing Innovations.

Introduction

Boworn Panyavoravaj is an inventor based in Bangkok, Thailand, whose work includes innovations in disk-drive manufacturing and servo writing. He is associated with Western Digital Technologies, Inc. His portfolio includes 5 patents.

Latest Patents

One of Panyavoravaj’s latest patents, “Adjusting Rotation Speed of Disk to Reduce Fly Height Modulation When Servo Writing in Gas,” describes a method for choosing a disk’s rotation speed during servo writing. The method injects gas into a head disk assembly, measures the head’s fly height modulation while the disk rotates, and adjusts the rotation speed if the modulation exceeds a threshold. After servo writing, the gas is evacuated, and manufacturing data is written at a lower, normal operating speed.

Another patent, “Disk Drive Centering Sync Frames on Sync Marks of a Spiral Track,” concerns positioning sync frames in relation to sync marks on a disk’s spiral tracks. The system measures the position error between a target frame position and the detected position, then adjusts the frame offset. It applies the updated offset during a subsequent disk revolution to improve frame alignment.

Career Highlights

Panyavoravaj’s disclosed inventions address precision and process control in disk-drive production. His work on rotation speed and fly height modulation focuses on conditions during servo writing, while his sync-frame invention addresses accurate positioning relative to spiral-track marks.

Collaborations

Panyavoravaj is associated with Western Digital Technologies, Inc. His listed coworkers include Jern Khang Tan and Maneerat Suthampitak.

Conclusion

Boworn Panyavoravaj’s patent work reflects a focus on improving disk-drive manufacturing through controlled servo-writing conditions and precise sync-frame alignment.