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For the Inventor, By the Inventor

Saratoga, CA, United States of America

Chunjer Chuck Cheng

This inventor holds 22 USPTO granted patents, primarily in Disk Drive Technology. Top assignees: Western Digital Technologies, Inc., Ministor Peripherals International Limited, Seagate Technology Incorporated. Active years: 1995-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Chunjer Chuck Cheng. Retrieved from https://idiyas.com/inventor/chunjer-chuck-cheng

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

USPTO Granted Patents = 22

% Patents Active = 31.8

Average Co-Inventor Count = 2.6

ph-index = 19

Forward Citations = 880(Granted Patents)


Location History:

  • Santa Clara, CA (US) (2009)
  • Saratoga, CA (US) (1995 - 2013)

Company Filing History:

goldMedal20 out of 5,429 
 
Western Digital Technologies, Inc.
 patents
silverMedal1 out of 4 
 
Ministor Peripherals International Limited
 patents
bronzeMedal1 out of 8,748 
 
Seagate Technology Incorporated
 patents

Years Active: 1995-2013

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Areas of Expertise:
Head Stack Assembly
Disk Spindle Assembly
Actuator Arm
Gimbal Assembly
Vibration Damping
Mechanical Latch
Recirculation Filter
Balancing Element
Dual-State Clamping
Storage Device
Noise Reduction
Integrated Air Circulation
22 patents (USPTO):Explore Patents
1. 8544164 - Method for test mounting a head stack assembly cartridge (2013-10-01),
2. 8432631 - Disk spindle assembly cartridge (2013-04-30),
3. 8339747 - Removable actuator assemblies for testing head gimbal assemblies of a storage device (2012-12-25),
4. 8270118 - Head stack assembly cartridge (2012-09-18),
5. 8228631 - Disk drive having a stationary plate facing a disk and with a recirculation filter coupled to grooves in the stationary plate (2012-07-24),
6. 8218256 - Disk spindle assembly cartridge (2012-07-10),
7. 8098460 - Dual-state clamping mechanism (2012-01-17),
8. 8094414 - Head gimbal assembly mounting mechanism (2012-01-10),
9. 8031431 - Disk drive having a top cover with anchor tabs (2011-10-04),
10. 7957095 - Disk drive having a stationary plate facing a disk and with a recirculation filter coupled to grooves in the stationary plate (2011-06-07),
11. 7605999 - Disk drive cover having a see-through insert including an electrically conductive material (2009-10-20),
12. 7593181 - Disk vibration damper having an integrated air circulation guide (2009-09-22),
13. 7529064 - Disk drive including a balancing element with first and second cavities and a cylindrical portion disposed about a spindle motor hub (2009-05-05),
14. 7440234 - Disk drive including an actuator arm with a region of reduced thickness between an arm longitudinal axis and a disk axis of rotation (2008-10-21),
15. 7227725 - Head stack assembly with locking pins for retaining flex cable (2007-06-05),

Title: Innovator Spotlight: Chunjer Chuck Cheng

Introduction:

Chunjer Chuck Cheng, a prolific inventor based in Saratoga, CA, has made significant contributions to the field of technology with his innovative patents. With 22 patents to his name, Cheng continues to push the boundaries of possibility in the realm of data storage and retrieval.

Latest Patents:

Cheng's latest patents showcase his expertise in the design and development of storage solutions. One such patent is the "Method for test mounting a head stack assembly cartridge," which revolutionizes the way head stack assemblies are mounted and secured. Another notable patent is the "Disk spindle assembly cartridge," which enhances the accessibility and functionality of disk storage systems.

Career Highlights:

Throughout his career, Cheng has made a mark in renowned companies such as Western Digital Technologies, Inc. and Ministor Peripherals International Limited. His innovative spirit and dedication to advancing technology have earned him a reputation as a trailblazer in the industry.

Collaborations:

Cheng has had the privilege of working alongside talented individuals such as Tao Lin and Gang Herbert Lin. These collaborations have enriched his work and paved the way for groundbreaking inventions in the field of data storage.

Conclusion:

In conclusion, Chunjer Chuck Cheng stands as a remarkable inventor whose contributions have left a lasting impact on the world of technology. His relentless pursuit of innovation and unwavering dedication to his craft continue to inspire future generations of inventors and engineers.

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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