Company Filing History:
Years Active: 2010-2011
Title: Innovations by Dongman Kim in Hard Disk Drive Technology
Introduction
Dongman Kim is an accomplished inventor based in Campbell, CA (US). He has made significant contributions to the field of hard disk drive technology, holding a total of 2 patents. His work focuses on enhancing the performance and reliability of hard disk drives through innovative methods and apparatus.
Latest Patents
One of Dongman Kim's latest patents is titled "Method and apparatus for estimating touchdown of a slider in a hard disk drive." This invention addresses the challenge of determining when a slider makes contact with a rotating disk surface while accessing a track. The method utilizes an increase in servo address mark delays to create a touchdown flag, particularly useful for tracks located away from the Inside Diameter (ID). Additionally, the hard disk drive can employ resistive heater electrical readings to ascertain the touchdown flag for track locations near the ID. This calibration can occur during manufacturing or be recalibrated in the field, ensuring optimal performance during normal access operations.
Another notable patent is "Apparatus and method for sensing an external magnetic field to protect a perpendicular magnetic recording (PMR) hard disk drive." This invention includes a voice coil motor and a magnetic sensor that communicates with a control circuit. The magnetic sensor reading is crucial for stopping access operations in response to an external magnetic field that could disrupt the slider's operation. This technology is particularly relevant for PMR hard disk drives, enhancing their reliability and performance.
Career Highlights
Dongman Kim has dedicated his career to advancing hard disk drive technology. His innovative approaches have led to significant improvements in data storage solutions. Working at Samsung Electronics Co., Ltd., he has been at the forefront of research and development in this field.
Collaborations
Dongman Kim collaborates with talented professionals, including his coworker Sang Hoon Chu. Together, they contribute to the ongoing advancements in hard disk drive technology.
Conclusion
Dongman Kim's contributions to hard disk drive technology through his patents demonstrate his commitment to innovation and excellence. His work not only enhances the functionality of hard disk drives but also sets a standard for future developments in the industry.