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For the Inventor, By the Inventor

Kanagawa, Japan

Kiyoshi Kagawa

This inventor holds 5 USPTO granted patents and 1 published patent application. Top assignee: Sony Corporation. Active years: 1994-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiyoshi Kagawa. Retrieved from https://idiyas.com/inventor/kiyoshi-kagawa

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

USPTO Granted Patents = 5 

% Patents Active = 100.0

Average Co-Inventor Count = 3.5

ph-index = 3

Forward Citations = 84(Granted Patents)


Company Filing History:

goldMedal5 out of 58,145 
 
Sony Corporation
 patents

Years Active: 1994-2000

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5 patents (USPTO):Explore Patents
1. 6071608 - Tape-type magnetic recording medium and method of reproducing signal by (2000-06-06),
2. 5828526 - Magnetoresistance effect element and magnetic field detection device (1998-10-27),
3. 5699214 - Magnetic information detecting apparatus (1997-12-16),
4. 5568115 - Artificial lattice film and magneto-resistance effect element using the (1996-10-22),
5. 5365391 - Magnetic reproducing head having a distributed-constant circuit type (1994-11-15),

Title: Kiyoshi Kagawa: Innovator in Magnetic Recording Technology

Introduction

Kiyoshi Kagawa is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of magnetic recording technology, holding a total of 5 patents. His work has been instrumental in advancing the capabilities of tape-type magnetic recording mediums.

Latest Patents

Kagawa's latest patents include innovative technologies such as a tape-type magnetic recording medium and a method of reproducing signals. This invention features a non-magnetic support member and a magnetic layer that adheres to specific relationships regarding residual magnetic flux density and coercive force. Another notable patent involves a magnetoresistance effect element, which consists of a magnetoresistance effect film made from alternating layers of magnetic and non-magnetic materials. This design enhances the performance of magnetic field detection devices.

Career Highlights

Kiyoshi Kagawa is currently employed at Sony Corporation, where he continues to push the boundaries of magnetic recording technology. His expertise and innovative spirit have made him a valuable asset to the company and the industry as a whole.

Collaborations

Throughout his career, Kagawa has collaborated with notable colleagues such as Hiroshi Kano and Akihiko Okabe. These partnerships have fostered a creative environment that has led to groundbreaking advancements in their field.

Conclusion

Kiyoshi Kagawa's contributions to magnetic recording technology exemplify the spirit of innovation. His patents and work at Sony Corporation highlight his role as a leading inventor in this specialized area.

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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