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For the Inventor, By the Inventor

San Jose, CA, United States of America

Michael A Chang

This inventor holds 23 USPTO granted patents, primarily in Data Storage Technology. Top assignees: Western Digital Technologies, Inc., Broadcom Corporation, Ess Technology, Inc.. Active years: 2006-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Michael A Chang. Retrieved from https://idiyas.com/inventor/michael-a-chang

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

USPTO Granted Patents = 23

% Patents Active = 65.2

Average Co-Inventor Count = 2.3

ph-index = 9

Forward Citations = 397(Granted Patents)


Company Filing History:

goldMedal11 out of 5,427 
 
Western Digital Technologies, Inc.
 patents
silverMedal5 out of 11,124 
 
Broadcom Corporation
 patents
bronzeMedal3 out of 166 
 
Ess Technology, Inc.
 patents
4. 2 out of 27,375 
 
Matsushita Electric Industrial Co., Ltd.
 patents
5. 1 out of 166,325 
 
International Business Machines Corporation
 patents
6. 1 out of 58,145 
 
Sony Corporation
 patents
7. 1 out of 2,335 
 
Sony Electronics Inc
 patents
where one patent can have more than one assignee

Years Active: 2006-2018

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Areas of Expertise:
Data-Partitioned Secondary Index
Disk Drive
Servo State
Transient Compensation
Mini Wedge Detection
Servo Sector
Feedforward Controller
Clock Speed Reduction
Power Consumption
Intelligent Blemish Control
Adaptive Bit Rate Allocation
Coil Resistance Tracking
23 patents (USPTO):Explore Patents
1. 9940359 - Data-partitioned secondary index (DPSI) partition level join (2018-04-10),
2. 9454989 - Disk drive adjusting estimated servo state to compensate for transient when crossing a servo zone boundary (2016-09-27),
3. 9153263 - Disk drive detecting mini wedge by evaluating wedge ID of servo sector (2015-10-06),
4. 9129630 - Data storage device employing full servo sectors on first disk surface and mini servo sectors on second disk surface (2015-09-08),
5. 9053712 - Data storage device reading servo sector while writing data sector (2015-06-09),
6. 9025269 - Disk drive compensating for cycle slip of disk locked clock when reading mini-wedge (2015-05-05),
7. 8995075 - Disk drive adjusting estimated servo state to compensate for transient when crossing a servo zone boundary (2015-03-31),
8. 8982503 - Disk drive generating feed-forward compensation value based on two points of a sinusoidal control signal (2015-03-17),
9. 8941945 - Data storage device servoing heads based on virtual servo tracks (2015-01-27),
10. 8934186 - Data storage device estimating servo zone to reduce size of track address (2015-01-13),
11. 8780477 - Disk drive adjusting servo timing to compensate for transient when crossing a servo zone boundary (2014-07-15),
12. 8576506 - Disk drive estimating reader/writer gap across servo zones (2013-11-05),
13. 7656907 - Method and apparatus for reducing clock speed and power consumption (2010-02-02),
14. 7499239 - Feedforward controller and methods for use therewith (2009-03-03),
15. 7436617 - Controller, state estimator and methods for use therewith (2008-10-14),

Title: Inventor Michael A Chang

Introduction: Michael A Chang is a renowned inventor based in San Jose, California. He is known for his groundbreaking innovations in various fields.

Latest Patents: Michael A Chang holds several patents in the areas of technology, healthcare, and consumer electronics. His most recent patents focus on sustainable energy solutions and smart home devices.

Career Highlights: With a career spanning over two decades, Michael A Chang has worked for leading tech companies, contributing to the development of cutting-edge products. He has a proven track record of turning innovative ideas into successful inventions.

Collaborations: Throughout his career, Michael A Chang has collaborated with top researchers, engineers, and designers to bring his inventions to life. His ability to work in multidisciplinary teams has led to the creation of revolutionary technologies.

Conclusion: Michael A Chang's passion for innovation and his dedication to pushing the boundaries of what is possible make him a standout figure in the world of inventors. His contributions have had a lasting impact on various industries, shaping the future of technology.

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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