Company Filing History:

11 out of 39,230

Fujitsu Corporation

Years Active: 1982-2012

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8202571 - Manufacturing method for magnetic recording medium (2012-06-19),

2. 7768731 - Magnetic recording medium, magnetic storage and method for reproducing information from magnetic recording medium (2010-08-03),

3. 7502188 - Magnetic recording medium, magnetic storage and method for reproducing information from magnetic recording medium (2009-03-10),

4. 6773782 - Magnetic memory medium having a magnetic film laminated on a substrate and a non-magnetic film formed thereon, and method of manufacturing the same (2004-08-10),

5. 6586044 - Method for manufacturing a magnetic hard disk having concentric magnetic tracks with flat surface (2003-07-01),

6. 6583957 - Magnetic hard disk having concentric magnetic tracks with flat surface and fabrication method thereof (2003-06-24),

7. 6147488 - Measurement method of time dependent magnetic remanence in a recording (2000-11-14),

8. 5676781 - Method of producing a multi-layered ceramic circuit board (1997-10-14),

9. 5287620 - Process of producing multiple-layer glass-ceramic circuit board (1994-02-22),

10. 4925502 - Iron-cobalt type soft magnetic material (1990-05-15),

11. 4710242 - Material for temperature sensitive elements (1987-12-01),

12. 4459248 - Process and apparatus for producing a temperature sensitive element (1984-07-10),

13. 4347201 - Process and apparatus for producing a temperature sensitive element (1982-08-31),

Title: Wataru Yamagishi: Innovator in Magnetic Recording Technology

Introduction

Wataru Yamagishi is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of magnetic recording technology, holding a total of 13 patents. His innovative approaches have advanced the methods used in manufacturing magnetic recording media.

Latest Patents

Yamagishi's latest patents include a manufacturing method for magnetic recording medium. This method involves creating convex sections on the upper surface of an intermediate layer in a disk shape, which repulse magnetic particles. The magnetic particles are then filled into concave sections in a self-assembling manner to form a magnetic recording layer. Another notable patent is for a magnetic recording medium that consists of a first magnetic layer and a second magnetic layer. These layers exhibit exchange coupling and have anti-parallel magnetizing directions, enhancing the efficiency of data storage.

Career Highlights

Throughout his career, Wataru Yamagishi has worked with notable companies such as Fujitsu Corporation and Showa Denko K.K. His work has been instrumental in developing advanced technologies that improve magnetic storage solutions.

Collaborations

Yamagishi has collaborated with esteemed colleagues, including Hiroto Takeshita and Masato Sagawa. Their combined expertise has contributed to the success of various projects in the field of magnetic recording.

Conclusion

Wataru Yamagishi's innovative work in magnetic recording technology has established him as a key figure in the industry. His patents and collaborations continue to influence advancements in data storage solutions.

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1 patent (CIPO):

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1 patent pending (CIPO):

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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.