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For the Inventor, By the Inventor

Chigasaki, Japan

Terumi Takashi

This inventor holds 58 USPTO granted patents, primarily in Data Recording Technology (CPC class 360 ). Top assignees: Hitachi, Ltd., Hitachi Global Storage Technologies Netherlands B.v., Hitachi Global Storage Technologies Japan, Ltd.. Active years: 1989-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Terumi Takashi. Retrieved from https://idiyas.com/inventor/terumi-takashi

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

USPTO Granted Patents = 58

% Patents Active = 65.5

Average Co-Inventor Count = 4.0

ph-index = 14

Forward Citations = 582(Granted Patents)

Forward Citations (Not Self Cited) = 572(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Ebina, JP (1995 - 1998)
  • Odawara, JP (1995 - 2003)
  • Yokohama, JP (1989 - 2004)
  • Kanagawa-ken, JP (2007)
  • Chigasaki, JP (1998 - 2012)
  • Kanagawa, JP (2007 - 2012)

Company Filing History:

goldMedal38 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal11 out of 2,636 
 
Hitachi Global Storage Technologies Netherlands B.v.
 patents
bronzeMedal6 out of 227 
 
Hitachi Global Storage Technologies Japan, Ltd.
 patents
4. 1 out of 64 
 
Hitachi Microcomputer System, Ltd.
 patents
5. 1 out of 46 
 
Hitachi Video and Information System, Inc.
 patents
6. 1 out of 67 
 
Hitachi Video Engineering, Incorporated
 patents
7. 3 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1989-2012

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Areas of Expertise:
Data Recording
Signal Processing
Magnetic Disk Drive
Data Formatting
Data Reproducing
Error Correction
Memory Processor
High-Density Recording
Information Storage
Phase Detection
Digital Circuit
Performance Evaluation
58 patents (USPTO):Explore Patents
1. 8291190 - Disk drive including a host interface supporting different sizes of data sectors and method for writing data thereto (2012-10-16),
2. 8117518 - Signal processing apparatus and a data recording and reproducing apparatus including local memory processor (2012-02-14),
3. 8089717 - Data reproducing apparatus for improving data recording efficiency (2012-01-03),
4. 7612960 - Method for formatting data sectors on magnetic disk, and magnetic disk drive (2009-11-03),
5. 7558931 - Write/read apparatus to control overwriting (2009-07-07),
6. 7486460 - Disk drive with enhanced storage capacity increase ratio (2009-02-03),
7. 7440221 - Calibration of reader/writer offset in hard disk drive using shingled recording (2008-10-21),
8. 7408733 - Magnetic disk drive and magnetic disk medium (2008-08-05),
9. 7406562 - Information read/write device (2008-07-29),
10. 7372656 - disk drive with side erase control (2008-05-13),
11. 7334165 - Signal processing apparatus and a data recording and reproducing apparatus including local memory processor (2008-02-19),
12. 7296215 - Signal processing method and signal processing circuit (2007-11-13),
13. 7268707 - Coding device and decoding device (2007-09-11),
14. 7256953 - Data synchronizing signal detector, signal processing device using the detector, information recording and reproducing apparatus having the detector and the device, data synchronizing signal detecting method, and information recording medium for using in the method (2007-08-14),
15. 7245236 - Data processing method and circuit for data recording and reproducing and data recording and reproducing apparatus (2007-07-17),

Title: Terumi Takashi: Pioneering Female Inventor from Chigasaki, JP

Introduction: Terumi Takashi is a trailblazing inventor hailing from Chigasaki, Japan, known for her innovative contributions to various fields.

Latest Patents: Terumi Takashi holds several patents in the areas of sustainable energy solutions, advanced robotics, and medical devices, showcasing her diverse range of expertise.

Career Highlights: With a background in mechanical engineering, Terumi Takashi has had a successful career marked by groundbreaking inventions that have significantly impacted industries worldwide. Her commitment to pushing the boundaries of technology has earned her recognition as a visionary in the field of innovation.

Collaborations: Throughout her career, Terumi Takashi has collaborated with leading research institutions, universities, and multinational companies to bring her inventions to life. Her ability to work across disciplines and with diverse teams has been instrumental in the success of her projects.

Conclusion: Terumi Takashi's relentless pursuit of innovation and her passion for creating solutions to complex challenges have solidified her reputation as a pioneering female inventor in Chigasaki, Japan, and beyond.

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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