Company Filing History:

35 out of 39,228

Fujitsu Corporation

where one patent can have more than one assignee

Years Active: 1996-2011

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36 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7927725 - Magnetic recording medium, production method thereof and magnetic disc apparatus (2011-04-19),

2. 7625643 - Magnetic recording medium, magnetic storage apparatus and recording method (2009-12-01),

3. 7435489 - Magnetic recording medium, magnetic storage apparatus and recording method (2008-10-14),

4. 7271984 - Magnetic recording medium having at least two coupled magnetic layers, magnetic storage apparatus and recording method (2007-09-18),

5. 7115330 - Magnetic recording medium with CR <110> preferred growth along a predetermined direction, method of producing the same and magnetic storage apparatus (2006-10-03),

6. 7079340 - Apparatus and method of measuring write magnetic field of recording head (2006-07-18),

7. 6905781 - Magnetic recording medium with Cr<110> preferred growth along a predetermined direction, method of producing the same and magnetic storage apparatus (2005-06-14),

8. 6881496 - Antiferromagnetically coupled magnetic recording medium possessing three coupled magnetic layers and magnetic storage apparatus (2005-04-19),

9. 6828047 - Magnetic recording medium and magnetic storage apparatus (2004-12-07),

10. 6821652 - Magnetic recording medium and magnetic storage apparatus (2004-11-23),

11. RE38587 - Magnetic recording medium (2004-09-14),

12. 6753101 - Magnetic recording medium, magnetic storage apparatus, recording method and method of producing magnetic recording medium (2004-06-22),

13. 6740383 - Magnetic recording medium possessing a ratio of Hc(perpendicular) to Hc(horizontal) that is not more than 0.22 and magnetic recording disk device (2004-05-25),

14. 6689496 - Magnetic recording medium, method of producing magnetic recording medium, and magnetic storage apparatus (2004-02-10),

15. 6689495 - Magnetic recording medium and magnetic storage apparatus (2004-02-10),

Title: **Iwao Okamoto: Innovator in Magnetic Recording Technology**

Introduction

Iwao Okamoto, an esteemed inventor based in Kawasaki, Japan, has made significant contributions to the field of magnetic recording technology. With a remarkable portfolio of 36 patents, he is recognized for his innovative solutions that have advanced digital magnetic recording methods and apparatuses.

Latest Patents

Among his latest patents is a groundbreaking invention titled "Magnetic recording medium, production method thereof and magnetic disc apparatus." This patent describes a magnetic recording medium designed for digital magnetic recording, comprising a nonmagnetic substrate with a layered magnetic structure. The invention emphasizes a configuration where ferromagnetic regions are interspersed with antiferromagnetic regions, enhancing the media's performance.

Another significant patent is "Magnetic recording medium, magnetic storage apparatus and recording method." This invention features a dual magnetic layer design, with a nonmagnetic coupling layer that facilitates exchange coupling between the two magnetic layers. It highlights a unique mechanism whereby the first magnetic layer alters its magnetization direction before the second, ensuring effective data recording under various conditions.

Career Highlights

Throughout his career, Iwao Okamoto has worked with esteemed companies including Fujitsu Corporation and Showa Denko K.K. His roles in these organizations have allowed him to hone his expertise in magnetic recording technologies and drive innovation in this essential field.

Collaborations

Iwao has collaborated with notable professionals such as E Noel Abarra and Isatake Kaitsu, demonstrating the power of teamwork in achieving technological advancements. These collaborations exemplify how co-inventors can enhance each other's strengths to develop cutting-edge solutions in the industry.

Conclusion

Iwao Okamoto's impressive contributions to magnetic recording technology reflect his dedication and innovative spirit. With a wealth of patents to his name and a robust professional background, he continues to influence the evolution of digital recording processes, marking his legacy in the world of technology and innovation.

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