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For the Inventor, By the Inventor

Niigata, Japan

Naohiro Ishibashi

This inventor holds 9 USPTO granted patents. Top assignees: Alps Electric Co., Ltd., Tdk Corporation. Active years: 1989-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naohiro Ishibashi. Retrieved from https://idiyas.com/inventor/naohiro-ishibashi

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

Calculating rank
USPTO Granted Patents = 9

% Patents Active = 77.8

Average Co-Inventor Count = 2.8

ph-index = 5

Forward Citations = 97(Granted Patents)


Location History:

  • Yoita, JP (1989)
  • Tokyo, JP (2008)
  • Niigata-ken, JP (1999 - 2009)

Company Filing History:

goldMedal7 out of 4,048 
 
Alps Electric Co., Ltd.
 patents
silverMedal2 out of 8,282 
 
Tdk Corporation
 patents

Years Active: 1989-2009

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9 patents (USPTO):Explore Patents
1. 7623324 - Magnetic sensing element having reactive-ion-etching stop layer and process for producing same (2009-11-24),
2. 7365949 - CPP giant magnetoresistive head including pinned magnetic layer that extends in the height direction (2008-04-29),
3. 7102858 - Thin-film electrode layer including β-ta and thin-film magnetic head using the same (2006-09-05),
4. 6783874 - Magnetic sensor having second antiferromagnetic layers and two types of electrode layers on free magnetic layer and manufacturing method thereof (2004-08-31),
5. 6261468 - Combination read/write thin film magnetic head and its manufacturing method (2001-07-17),
6. 5952041 - Combined read/write thin film magnetic head and its manufacturing method (1999-09-14),
7. 5949625 - Combination read/write thin film magnetic head with slant surfaces (1999-09-07),
8. 5896254 - Combined read/write thin film magnetic head having a flat upper layer (1999-04-20),
9. 4807076 - Thin film magnetic head for use in vertical magnetic recording (1989-02-21),

Title: Naohiro Ishibashi: Innovator in Magnetic Sensing Technology

Introduction

Naohiro Ishibashi is a prominent inventor based in Niigata-ken, Japan. He has made significant contributions to the field of magnetic sensing technology, holding a total of 9 patents. His work has advanced the understanding and application of magnetic sensing elements and giant magnetoresistive heads.

Latest Patents

One of his latest patents is titled "Magnetic sensing element having reactive-ion-etching stop layer and process for producing same." This invention provides a magnetic sensing element that includes a laminate and a bias layer. It features a first reactive-ion-etching (RIE) stop layer disposed on a free magnetic layer, with second RIE stop layers on bias layers. These layers function as stop layers during the reactive ion etching process, ensuring precision in production.

Another notable patent is the "CPP giant magnetoresistive head including pinned magnetic layer that extends in the height direction." This invention describes a CPP giant magnetoresistive head that consists of a lower shield layer, an upper shield layer, and a giant magnetoresistive element (GMR) situated between them. The GMR includes a nonmagnetic material layer, a pinned magnetic layer, and a free magnetic layer, with a current flowing perpendicularly to the film plane of the GMR.

Career Highlights

Naohiro Ishibashi has worked with several notable companies throughout his career, including Alps Electric Co., Ltd. and TDK Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in magnetic sensing technology.

Collaborations

He has collaborated with esteemed colleagues such as Kiyoshi Sato and Kenji Honda, contributing to the advancement of their shared field of expertise.

Conclusion

Naohiro Ishibashi's contributions to magnetic sensing technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in this critical area of 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]
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