San Jose, CA, United States of America

Dar-Der Chang

This inventor holds 3 USPTO granted patents and 1 published patent application. Top assignees: Seagate Technology Incorporated, Seagate Technology International, Western Digital Technologies, Inc.. Active years: 2000-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Dar-Der Chang. Retrieved from https://idiyas.com/inventor/dar-der-chang

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

USPTO Granted Patents = 3 

% Patents Active = 66.7

Average Co-Inventor Count = 2.8

ph-index = 3

Forward Citations = 43(Granted Patents)


Location History:

  • Fremont, CA (US) (2000)
  • San Jose, CA (US) (2012 - 2018)

Company Filing History:


Years Active: 2000-2018

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3 patents (USPTO):Explore Patents

Title: The Innovative Mind of Dar-Der Chang

Introduction

Dar-Der Chang, an accomplished inventor based in San Jose, California, has made significant contributions to the field of technology through his innovative work. With a total of three patents to his name, Chang has explored advanced methodologies that enhance processing efficiency and data storage techniques.

Latest Patents

Among Dar-Der Chang's latest patents is the concept of adjustable priority ratios for multiple task queues. This innovative method involves assigning priority ratios to various task queues based on the number of tasks they contain. By utilizing a processor to manage task assignments according to these ratios, the overall efficiency in handling multiple tasks is markedly improved.

Another noteworthy patent from Chang pertains to the floating guard band for shingle magnetic recording. This invention introduces a hard disk drive design that optimizes data writing processes on multiple tracks while minimizing the need to adjust adjacent tracks. The innovative creation of floating guard bands enhances the drive's functionality, offering a more streamlined approach compared to traditional methods.

Career Highlights

Throughout his career, Dar-Der Chang has been associated with leading technology companies such as Seagate Technology International and Western Digital Technologies, Inc. His work at these organizations has positioned him as an influential figure in the development of advanced storage solutions and processing methodologies.

Collaborations

In his journey as an inventor, Chang has collaborated with notable professionals like Ken Hong and Byeung Jun Lee. These partnerships have not only enriched his perspective on innovation but have also led to the advancement of various projects that capitalize on their collective expertise.

Conclusion

In summary, Dar-Der Chang exemplifies the spirit of innovation through his patents and collaborations within the tech industry. His contributions continue to influence the landscape of data storage and processing, promising further advancements in the years to come.

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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