logo

For the Inventor, By the Inventor

Odawara, Japan

Takuji Ogawa

This inventor holds 20 USPTO granted patents and 2 published patent applications and 1 EPO patent, primarily in Data Storage Systems. Top assignees: Hitachi, Ltd., Hitachi Computer Peripherals Co., Ltd., Nec Corporation. Active years: 1989-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takuji Ogawa. Retrieved from https://idiyas.com/inventor/takuji-ogawa

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

USPTO Granted Patents = 20 

% Patents Active = 50.0


Average Co-Inventor Count = 4.4

ph-index = 6

Forward Citations = 258(Granted Patents)


Company Filing History:

goldMedal19 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal1 out of 67 
 
Hitachi Computer Peripherals Co., Ltd.
 patents
bronzeMedal1 out of 36,684 
 
Nec Corporation
 patents
where one patent can have more than one assignee

Years Active: 1989-2025

Loading Chart...
Loading Chart...
Areas of Expertise:
Data Storage
Disk Array System
Magnetic Recording Drive
Monitoring Method
Cache Memory
Disk Drive
Cooling Structure
Phase Synchronization
Defect Detection
Data Coincidence
Storage System
20 patents (USPTO):Explore Patents
1. 12283169 - Monitoring system, monitoring method, and recording medium (2025-04-21),
2. 8468300 - Storage system having plural controllers and an expansion housing with drive units (2013-06-18),
3. 8291162 - Storage system (2012-10-16),
4. 8037245 - Storage system (2011-10-11),
5. 7865665 - Storage system for checking data coincidence between a cache memory and a disk drive (2011-01-04),
6. 7453774 - Disk array system (2008-11-18),
7. 7447121 - Disk array system (2008-11-04),
8. 7203135 - Disk array system and method for controlling disk array system (2007-04-10),
9. 7200074 - Disk array system and method for controlling disk array system (2007-04-03),
10. 7181570 - Diskarray system for suppressing disk fault (2007-02-20),
11. 7057981 - Disk array system and method for controlling disk array system (2006-06-06),
12. 6490123 - Disc drive having 3.5 inch form factor housing and 2.5 inch form factor disk media (2002-12-03),
13. 6069762 - Magnetic recording drive having arrangement for averaging useful life of (2000-05-30),
14. 6014275 - Magnetic recording drive (2000-01-11),
15. 5572379 - Magnetic recording drive having arrangements for average useful life of (1996-11-05),

Title: Takuji Ogawa: Pioneering Inventor from Odawara

Introduction: Takuji Ogawa is a renowned inventor hailing from Odawara, Japan, known for his groundbreaking contributions to the field of technology and innovation.

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

Career Highlights: With a career spanning over two decades, Takuji Ogawa has worked with leading tech companies and research institutions, spearheading projects that have revolutionized various industries.

Collaborations: Throughout his career, Takuji Ogawa has collaborated with top engineers, scientists, and researchers from around the world, fostering a culture of innovation and knowledge exchange.

Conclusion: Takuji Ogawa's relentless pursuit of innovation and his passion for creating technology that makes a difference have solidified his position as a trailblazer in the world of inventions.

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]
Loading…