Average Co-Inventor Count = 5.6

ph-index = 12

Forward Citations = 439(Granted Patents)

Forward Citations (Not Self Cited) = 422(Oct 12, 2025)

Inventors with similar research interests:

Location History:

Kokubunji, JP (1983)
Hachioji, JP (1985 - 1986)
Hino, JP (1997 - 2008)
Tokyo, JP (2008 - 2014)

Company Filing History:

Hitachi Global Storage Technologies Japan, Ltd.

patents

8 out of 2,636

Hitachi Global Storage Technologies Netherlands B.v.

Hgst Netherlands, B.v.

patents

where one patent can have more than one assignee

Years Active: 1983-2014

Loading Chart...

60 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 8802247 - Perpendicular magnetic recording medium with high medium S/N (2014-08-12),

2. 7799447 - Perpendicular magnetic recording medium having grain boundary layer containing ferromagnetic element (2010-09-21),

3. 7651795 - Perpendicular magnetic recording medium and manufacturing of the same (2010-01-26),

4. 7641989 - Perpendicular magnetic recording medium for high density recording and manufacturing of the same (2010-01-05),

5. 7618722 - Perpendicular magnetic recording media and magnetic storage apparatus using the same (2009-11-17),

6. 7556871 - Magnetic recording medium containing first and second recording layers, each layer containing a columnar structure (2009-07-07),

7. 7534507 - Perpendicular magnetic recording medium for high density magnetic recording and manufacturing of the same (2009-05-19),

8. 7457064 - Perpendicular magnetic recording medium, method of evaluating magnetic properties of the same (2008-11-25),

9. 7368185 - Perpendicular magnetic recording media and magnetic storage apparatus using the same (2008-05-06),

10. 7316852 - Perpendicular magnetic recording media (2008-01-08),

11. 7182974 - Magnetic recording medium and its manufacturing method and magnetic recording system using such a magnetic recording medium (2007-02-27),

12. 7157162 - Magnetic recording medium and magnetic recording and reproducing apparatus (2007-01-02),

13. 7153546 - Perpendicular magnetic recording media, manufacturing process of the same, and magnetic storage apparatus using the same (2006-12-26),

14. 7056604 - Magnetic recording media and magnetic recording system using the same (2006-06-06),

15. 7050253 - Magnetic recording media and magnetic storage apparatus using the same (2006-05-23),

Title: **Yuzuru Hosoe: Innovator in Magnetic Recording Technologies**

Introduction

Yuzuru Hosoe is a prominent inventor based in Hino, Japan, recognized for his significant contributions to the field of magnetic recording technologies. With an impressive portfolio of 60 patents, Hosoe has made groundbreaking advancements that enhance data storage solutions.

Latest Patents

Among his latest innovations, Hosoe has developed a perpendicular magnetic recording medium with high signal-to-noise ratio (S/N) and excellent corrosion resistance. This patent describes a medium that features a carefully structured layer composition, including an adhesion layer, a soft magnetic layer, and others, deposited in sequence. The soft magnetic underlayer consists of two distinct soft magnetic layers to optimize performance.

Another remarkable invention by Hosoe is a perpendicular magnetic recording medium containing a grain boundary layer enriched with a ferromagnetic element. This invention ensures the production of a high-quality granular magnetic recording layer made of CoCrPt alloy and silicon oxide, achieving both a high SNR of 18 dB or more and thermal stability below 3% per decade.

Career Highlights

Yuzuru Hosoe has held key positions at notable companies such as Hitachi, Ltd. and Hitachi Global Storage Technologies Japan, Ltd. His work in these organizations has been instrumental in advancing magnetic storage technologies that are critical for modern data management systems.

Collaborations

Throughout his career, Hosoe has collaborated with talented professionals, including Kiwamu Tanahashi and Tomoo Yamamoto. These collaborations have enabled the exchange of ideas and innovation, fostering an environment of creative problem-solving in the realm of magnetic recording technology.

Conclusion

Yuzuru Hosoe's contributions to the field of magnetic recording serve as a testament to his expertise and forward-thinking approach. With 60 patents under his name, his work continues to influence the evolution of data storage solutions, paving the way for future advancements in the industry.

This text is generated by artificial intelligence and may not be accurate.

Please report any incorrect information to support@idiyas.com

Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.