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For the Inventor, By the Inventor

Higashine, Japan

Takashi Toyoguchi

This inventor holds 10 USPTO granted patents and 1 published patent application. Top assignee: Fujitsu Corporation. Active years: 1998-2009.

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

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

USPTO Granted Patents = 10 

% Patents Active = 90.0

Average Co-Inventor Count = 3.1

ph-index = 5

Forward Citations = 112(Granted Patents)


Location History:

  • Kanagawa, JP (1998 - 2002)
  • Kawasaki, JP (2000 - 2003)
  • Higashine, JP (2009)

Company Filing History:

goldMedal10 out of 39,374 
 
Fujitsu Corporation
 patents

Years Active: 1998-2009

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10 patents (USPTO):Explore Patents
1. 7514163 - Magnetic recording medium and magnetic recording device (2009-04-07),
2. 6620481 - Magnetic recording medium, magnetic recording medium manufacture method, and information regeneration apparatus (2003-09-16),
3. 6410103 - Memory disc, manufacturing method thereof, and method of manufacturing disc drive utilizing such memory disc (2002-06-25),
4. 6299946 - Method of manufacturing a recording medium (2001-10-09),
5. 6246538 - Magnetic disk drive with a floating head slider having projections arranged to float at a greater distance from magnetic disk than slider trailing end (2001-06-12),
6. 6243233 - Magnetic head slider and magnetic disk apparatus having the magnetic head slider (2001-06-05),
7. 6120694 - Head slider with projecting arranged on rails thereof (2000-09-19),
8. 6072663 - Magnetic head slider with elongated projections for reducing stiction (2000-06-06),
9. 6040958 - Magnetic head slider and magnetic disk apparatus having the magnetic (2000-03-21),
10. 5841608 - Head slider with projections arranged on rails thereof (1998-11-24),

Title: Takashi Toyoguchi: Innovator in Magnetic Recording Technology

Introduction

Takashi Toyoguchi is a prominent inventor based in Higashine, Japan. He has made significant contributions to the field of magnetic recording technology, holding a total of 10 patents. His work focuses on enhancing the durability and performance of magnetic recording media and devices.

Latest Patents

Among his latest innovations, Toyoguchi has developed a magnetic recording medium and a magnetic recording device that exhibit excellent durability and corrosion resistance. This invention features a protective layer composed of two distinct layers: a lower layer that contacts the magnetic layer and an upper layer positioned above it. The internal stress of the lower layer is minimized compared to that of the upper layer, and the surface free energy of the lower layer is also reduced. Another notable patent involves a magnetic recording medium that successfully balances reduced magnetic spacing with enhanced contact sliding durability. This medium includes a disk-like substrate, an underlayer, a magnetic layer with ferromagnetic material, and a protective layer that safeguards the magnetic layer.

Career Highlights

Toyoguchi is currently employed at Fujitsu Corporation, where he continues to innovate in the field of magnetic recording technology. His work has been instrumental in advancing the capabilities of magnetic recording devices, making them more efficient and reliable.

Collaborations

Throughout his career, Toyoguchi has collaborated with notable colleagues, including Yoshiharu Kasamatsu and Takayuki Yamamoto. These partnerships have contributed to the development of cutting-edge technologies in the industry.

Conclusion

Takashi Toyoguchi's contributions to magnetic recording technology have established him as a key figure in the field. His innovative patents reflect his commitment to enhancing the performance and durability of magnetic recording media and devices.

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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