Kohichi Tateyama

This inventor holds 24 USPTO granted patents, primarily in Magnetoresistive Technology. Top assignee: Kabushiki Kaisha Toshiba. Active years: 1995-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kohichi Tateyama. Retrieved from https://idiyas.com/inventor/kohichi-tateyama

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

USPTO Granted Patents = 24

% Patents Active = 66.7

Average Co-Inventor Count = 5.0

ph-index = 13

Forward Citations = 392(Granted Patents)

Location History:

Chiba-ken, JP (2001)
Ichikawa, JP (1999 - 2005)
Kanagawa-ken, JP (2004 - 2006)
Yokohama, JP (1995 - 2009)

Company Filing History:

24 out of 53,262

Kabushiki Kaisha Toshiba

patents

Years Active: 1995-2009

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Areas of Expertise:

Magnetic Head

Magnetoresistive Element

Thin-Film Head

Magnetic Recording

Magnetic Reproducing

Magneto Resistive Film

Current-Perpendicular-To-Plane

Magnetron Sputtering

Magnetic Memory

Magnetic Disk

Sputtering Target

Manufacturing Method

24 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7514916 - CCP-CPP-GMR head assembly, magnetic recording/reproducing apparatus, and specification method of appropriate sense current direction of CCP-CPP-GMR head (2009-04-07),

2. 7405906 - Current-perpendicular-to-plane magnetoresistance effect device with double current control layers (2008-07-29),

3. 7304825 - CCP-CCP-GMR head assembly with good operating life, and magnetic recording/reproducing apparatus therewith (2007-12-04),

4. 7196877 - Magnetoresistive element, magnetoresistive head and magnetic reproducing apparatus (2007-03-27),

5. 7126795 - Magnetic recording head, a magnetic reproducing head, a magnetic recording apparatus, and a magnetic reproducing apparatus (2006-10-24),

6. 6940700 - Magnetic head and magnetic reproducing apparatus (2005-09-06),

7. 6912769 - Method a fabricating a magnetic head (2005-07-05),

8. 6850393 - Magnetic head including a magneto resistive film connected to a yoke portion (2005-02-01),

9. 6757143 - Magnetoresistive effect element, its manufacturing method, magnetic head, magnetic reproducing apparatus, and magnetic memory (2004-06-29),

10. 6751846 - Magnetic head manufacturing method (2004-06-22),

11. 6724582 - Current perpendicular to plane type magnetoresistive device, magnetic head, and magnetic recording/reproducing apparatus (2004-04-20),

12. 6564445 - Magnetic head manufacturing method (2003-05-20),

13. 6333840 - Magnetic recording apparatus (2001-12-25),

14. 6304415 - Magnetic head (2001-10-16),

15. 6198597 - Thin-film magnetic head having improved magnetic pole structure (2001-03-06),

Title: Innovations by Kohichi Tateyama: A Pioneer in Magnetic Recording Technology

Introduction

Kohichi Tateyama, based in Yokohama, Japan, is an accomplished inventor with an impressive portfolio of 24 patents. His innovative work primarily focuses on magnetic recording technologies, contributing significantly to advancements in the field.

Latest Patents

Tateyama's latest patents include the CCP-CPP-GMR head assembly and a magnetic recording/reproducing apparatus. The CCP-CPP-GMR head assembly features a current control layer composed of truncated cone electric conductors and an insulator, aimed at optimizing the sense current direction. Additionally, the current-perpendicular-to-plane magnetoresistance effect device with double current control layers demonstrates his expertise in dual spin valve technology, utilizing a CPP system to enhance the sensing current's efficiency.

Career Highlights

Kohichi Tateyama is currently associated with Toshiba Corporation, where his work on magnetic recording devices has positioned him as a leader in the technology sector. His contributions have allowed significant improvements in data storage solutions, particularly in how magnetic fields are utilized to enhance recording and reproducing mechanisms.

Collaborations

Throughout his career, Tateyama has collaborated with notable colleagues such as Hiroaki Yoda and Tomomi Funayama. These collaborations have fostered a creative environment that thrives on innovation and the pursuit of cutting-edge technologies in the field of magnetoresistance.

Conclusion

Kohichi Tateyama's contributions to magnetic recording technologies underscore his significance as an inventor. With a robust portfolio of patents and a collaborative spirit, he continues to influence the future of data storage solutions. His work not only reflects his technical expertise but also signifies the vital role of innovation in advancing technology.

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]