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For the Inventor, By the Inventor

Tokyo, Japan

Ikuya Yagisawa

This inventor holds 88 USPTO granted patents and 1 EPO patent, primarily in Data Storage Systems (CPC class 714-6). Top assignees: Hitachi, Ltd., Other. Active years: 1998-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ikuya Yagisawa. Retrieved from https://idiyas.com/inventor/ikuya-yagisawa

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

USPTO Granted Patents = 88

% Patents Active = 22.7

 

Average Co-Inventor Count = 3.5

ph-index = 13

Forward Citations = 1,250(Granted Patents)

Forward Citations (Not Self Cited) = 1,218(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Totsuka-ku, Yokohama-shi, Kanagawa-ken, JP (1998)
  • Yokohama, JP (1998 - 2009)
  • Tokyo, JP (2005 - 2014)
  • Machida, JP (2008 - 2014)

Company Filing History:

goldMedal87 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal1 out of 834,513 
Other
 patents

Years Active: 1998-2014

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Areas of Expertise:
Data Backup
Storage Controller
Power Control
Firmware Update
Failure Recovery
Logical Storage
Disk Array
Data Management
Communication Protocols
Power Saving
Storage Apparatus
Data Coincidence
88 patents (USPTO):Explore Patents
1. 8769227 - Storage controller and data management method (2014-07-01),
2. 8707096 - Storage system, data backup method, and system restarting method of a storage system incorporating volatile and nonvolatile memory devices (2014-04-22),
3. 8667337 - Storage apparatus and method of controlling the same (2014-03-04),
4. 8566541 - Storage system storing electronic modules applied to electronic objects common to several computers, and storage control method for the same (2013-10-22),
5. 8555008 - Storage system with storage medium package power control (2013-10-08),
6. 8543762 - Computer system for controlling allocation of physical links and method thereof (2013-09-24),
7. 8527981 - Storage device and method of instructing to update firmware (2013-09-03),
8. 8468300 - Storage system having plural controllers and an expansion housing with drive units (2013-06-18),
9. 8417886 - Storage system (2013-04-09),
10. 8370590 - Storage controller and data management method (2013-02-05),
11. 8370572 - Storage system for holding a remaining available lifetime of a logical storage region (2013-02-05),
12. 8347033 - Storage system having power saving function (2013-01-01),
13. 8312321 - Storage control apparatus and failure recovery method for storage control apparatus (2012-11-13),
14. 8312312 - Data storage system using multiple communication protocols (2012-11-13),
15. 8275938 - Computer system for controlling allocation of physical links and method thereof (2012-09-25),

Title: Ikuya Yagisawa: Pioneering Inventor from Tokyo

Introduction: Ikuya Yagisawa is a renowned inventor hailing from Tokyo, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Ikuya Yagisawa holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous commitment to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Ikuya Yagisawa has worked with leading tech companies and research institutions, where he has spearheaded projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Throughout his career, Ikuya Yagisawa has collaborated with top engineers, scientists, and researchers from around the world, fostering a culture of innovation and knowledge sharing that has led to numerous successful projects and inventions.

Conclusion: Ikuya Yagisawa's passion for innovation, coupled with his relentless drive to solve complex challenges, has solidified his reputation as a visionary inventor in the global tech community.

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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