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For the Inventor, By the Inventor

Fujisawa, Japan

Reijiro Tsuchiya

This inventor holds 15 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Global Storage Technologies Japan, Ltd.. Active years: 1989-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Reijiro Tsuchiya. Retrieved from https://idiyas.com/inventor/reijiro-tsuchiya

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

USPTO Granted Patents = 15

% Patents Active = 73.3

Average Co-Inventor Count = 2.2

ph-index = 6

Forward Citations = 134(Granted Patents)


Location History:

  • Kokubunji, JP (1989 - 1991)
  • Sagamihara, JP (1995 - 1998)
  • Fujisawa, JP (2000 - 2007)

Company Filing History:

goldMedal11 out of 42,731 
 
Hitachi, Ltd.
 patents
silverMedal4 out of 227 
 
Hitachi Global Storage Technologies Japan, Ltd.
 patents

Years Active: 1989-2007

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15 patents (USPTO):Explore Patents
1. 7271970 - Composite magnetic head arranged so the reproducing elements do not overlap a pole of a recording element (2007-09-18),
2. 6879460 - Magnetic recording disk drive (2005-04-12),
3. 6816344 - Composite magnetic head arranged so the reproducing elements do not overlap a pole of a recording element (2004-11-09),
4. 6765740 - Composite magnetic head, magnetic disk drive using the head, and control method for the magnetic disk (2004-07-20),
5. 6657804 - Magnetic recording disk drive (2003-12-02),
6. 6512648 - Magnetic storage apparatus using a magnetoresistive element (2003-01-28),
7. 6452737 - Magnetic disk device and automatic adaptation method of its parameter (2002-09-17),
8. 6285520 - Magnetic disk device and automatic adaptation method of its parameter (2001-09-04),
9. 6130797 - Magnetic recorder and magnetooptical recorder (2000-10-10),
10. 6111715 - Storage apparatus using a magnetoresistive head that employs a sense (2000-08-29),
11. 5786952 - Magnetic digital storage method and system wherein magnetic transition (1998-07-28),
12. 5459620 - Diagnostic system of magnetic recording channel and magnetic disk drive (1995-10-17),
13. 5008761 - Readout circuit in magnetic recording device (1991-04-16),
14. 4907100 - Readout circuit in magnetic recording device (1990-03-06),
15. 4823208 - Multi slice level signal circuit (1989-04-18),

Title: The Innovative Mind of Reijiro Tsuchiya

Introduction: Reijiro Tsuchiya, a pioneering inventor hailing from Fujisawa, Japan, is renowned for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Reijiro Tsuchiya holds several patents in the realm of electronics and telecommunications, showcasing his continuous dedication to pushing the boundaries of what is possible in these industries.

Career Highlights: Throughout his illustrious career, Reijiro Tsuchiya has consistently demonstrated a keen ability to transform bold ideas into tangible inventions that have revolutionized the way we interact with technology on a daily basis.

Collaborations: Tsuchiya has collaborated with leading tech companies and research institutions, pooling his expertise with other visionaries to create cutting-edge solutions that have left a lasting impact on the world of innovation.

Conclusion: Reijiro Tsuchiya's unwavering commitment to innovation and his relentless pursuit of excellence have solidified his legacy as a trailblazing inventor whose work continues to inspire future generations in the ever-evolving landscape of technology.

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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