Kazuyuki Usuki

This inventor holds 22 USPTO granted patents, primarily in Magnetic Recording Media. Top assignee: Fuji Photo Film Company, Limited. Active years: 1995-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuyuki Usuki. Retrieved from https://idiyas.com/inventor/kazuyuki-usuki

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

Calculating rank

USPTO Granted Patents = 22

% Patents Active = 68.2

Average Co-Inventor Count = 1.9

ph-index = 7

Forward Citations = 159(Granted Patents)

Location History:

Kanagawa-ken, JP (1999 - 2004)
Odawara, JP (1995 - 2005)
Kanagawa, JP (1995 - 2006)

Company Filing History:

22 out of 16,458

Fuji Photo Film Company, Limited

patents

Years Active: 1995-2006

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Areas of Expertise:

Magnetic Recording Medium

Information Recording

Vertical Magnetic System

Floppy Disk

Ferromagnetic Metal Thin Film

Silica Protective Films

Lubricant Layer

Magnetically Transferring Information

22 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7112376 - Magnetic recording medium (2006-09-26),

2. 6977786 - Information recording method using a vertical magnetic system (2005-12-20),

3. 6893714 - Magnetic recording medium (2005-05-17),

4. 6869688 - Magnetic recording medium (2005-03-22),

5. 6829201 - Magnetic information recording medium having regions magnetized in different directions, a method for recording and reproducing for the same, and a method of manufacturing the same (2004-12-07),

6. 6740407 - Magnetic recording medium and magnetic recording mode using floppy disk (2004-05-25),

7. 6678101 - Method of magnetically transferring information signal from master medium to slave medium (2004-01-13),

8. 6587289 - Method of magnetically transferring information signal from master medium to slave medium (2003-07-01),

9. 6525908 - Floppy disk (2003-02-25),

10. 6391419 - Magnetic recording medium (2002-05-21),

11. 6120836 - Process of producing a magnetic recording medium (2000-09-19),

12. 6106895 - Magnetic recording medium and process for producing the same (2000-08-22),

13. 5958544 - Magnetic recording medium and process for producing the same (1999-09-28),

14. 5914151 - Method for forming silica protective films (1999-06-22),

15. 5869186 - Magnetic recording medium (1999-02-09),

Title: Kazuyuki Usuki: Innovator in Magnetic Recording Technology

Introduction

Kazuyuki Usuki is a prominent inventor based in Kanagawa, Japan, recognized for his contributions to the field of magnetic recording technology. With 22 patents to his name, Usuki has significantly impacted advancements in information storage systems, particularly in magnetic recording mediums.

Latest Patents

Usuki's latest innovations include a sophisticated magnetic recording medium that consists of a nonmagnetic support, a first under layer made from nonmetal elements or titanium compounds, a second under layer formulated with various metallic elements, and a magnetic layer featuring a ferromagnetic metal alloy. This patented design is crucial for enhancing the quality and efficiency of data storage.

Another significant patent involves an innovative information recording method that utilizes a vertical magnetic system. This technique ensures high-density recording of data with excellent signal-to-noise (S/N) ratios by employing accurate tracking servo through a magneto-optical effect, which enhances the overall performance of data recording in magnetic disks.

Career Highlights

Kazuyuki Usuki is an integral part of Fuji Photo Film Company, Limited, where he has focused his research on improving magnetic recording technologies. His efforts have led to multiple patents that not only advance his company’s product offerings but also contribute to the broader field of information technology.

Collaborations

Throughout his career, Usuki has collaborated with esteemed colleagues, including Toshio Ishida and Tadashi Yasunaga. These collaborations have fostered a creative environment that fuels innovation and results in groundbreaking advancements in their field.

Conclusion

Kazuyuki Usuki’s dedication to enhancing magnetic recording technologies exemplifies the spirit of innovation. His numerous patents underscore his significant contributions to the industry and demonstrate the critical role of collaboration in achieving technological advancements.

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]