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For the Inventor, By the Inventor

Fremont, CA, United States of America

Chang-Ik Kang

This inventor holds 15 USPTO granted patents. Top assignee: Samsung Electronics Co., Ltd.. Active years: 2000-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chang-Ik Kang. Retrieved from https://idiyas.com/inventor/chang-ik-kang

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

USPTO Granted Patents = 15

% Patents Active = 40.0

Average Co-Inventor Count = 1.6

ph-index = 5

Forward Citations = 82(Granted Patents)


Location History:

  • San Jose, CA (US) (2000)
  • Seoul, KR (2002)
  • Fremont, CA (US) (2007 - 2010)
  • Santa Clara, CA (US) (2002 - 2011)

Company Filing History:

goldMedal15 out of 132,108 
 
Samsung Electronics Co., Ltd.
 patents

Years Active: 2000-2011

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15 patents (USPTO):Explore Patents
1. 8009383 - Seek control method to avoid flex cable resonance during settle in hard disk drive (2011-08-30),
2. 7760455 - Method and apparatus improving prevention of off-track writing in a hard disk drive (2010-07-20),
3. 7729081 - On-line bias estimator in hard disk drives (2010-06-01),
4. 7605994 - Multiple sinusoidal seek servo system for reducing seek acoustics and seek time in hard disk drives (2009-10-20),
5. 7440223 - Written-in repeatable run-out correction for hard disk drives (2008-10-21),
6. 7411761 - Seek adaptation system in hard disk drives (2008-08-12),
7. 7400468 - Vibration detector for hard disk drives (2008-07-15),
8. 7394614 - Control method to reduce settle TMR in hard disk drives (2008-07-01),
9. 7379262 - Higher-order state estimator for low TMR in hard disk drives (2008-05-27),
10. 7349173 - Self-tuning settle controller in hard disk drives (2008-03-25),
11. 7307810 - Method of compensating for track address discontinuity across servo track writing boundary in hard disk drives (2007-12-11),
12. 7304817 - Jerk controlled seek system (2007-12-04),
13. 6441988 - Method and apparatus for reducing acoustic noise in a hard disk drive (2002-08-27),
14. 6396654 - Embedded servo writing method and apparatus for hard disk drive (2002-05-28),
15. 6038096 - Adaptive sector seeking method for reducing disk drive power consumption (2000-03-14),

Title: Innovations of Chang-Ik Kang in Hard Disk Drive Technology

Introduction

Chang-Ik Kang is a prominent inventor based in Fremont, California, known for his significant contributions to hard disk drive technology. With a total of 15 patents to his name, he has developed innovative methods that enhance the performance and reliability of hard disk drives.

Latest Patents

One of his latest patents focuses on a seek control method designed to avoid flex cable resonance during the settling process in hard disk drives. This invention involves a circuit that enables a seek routine by supplying a seek current to a voice coil motor. The voice coil motor is connected to a head that interacts with a disk. The seek current is tailored to provide a specific number of harmonics, which depend on the seek length of the routine. For instance, the seek current may consist solely of the first harmonic for seek lengths under 20,000 tracks, or include the first and second harmonics for lengths under 40,000 tracks. The harmonics are determined by plotting the position error signal (PES) settle against the seek length.

Another notable patent by Kang improves the prevention of off-track writing in hard disk drives. This invention includes a hard disk drive that utilizes a read track to position for writing to a write track. It generates a position error signal (PES) based on four servo offset bursts, which disable writing when the PES exceeds a predetermined threshold. A preamplifier generates the PES from these bursts, ensuring accurate positioning when writing to the designated track.

Career Highlights

Chang-Ik Kang is currently employed at Samsung Electronics Co., Ltd., where he continues to innovate in the field of data storage technology. His work has significantly impacted the efficiency and reliability of hard disk drives, making them more effective for various applications.

Collaborations

Throughout his career, Kang has collaborated with notable colleagues, including Bong-Jin Lee and Young-Hoon Kim. These partnerships have fostered a creative environment that has led to groundbreaking advancements in hard disk drive technology.

Conclusion

Chang-Ik Kang's contributions to hard disk drive technology exemplify the importance of innovation in the field of data storage. His patents reflect a deep understanding of the challenges faced in this industry and provide effective solutions that enhance performance and reliability.

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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