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For the Inventor, By the Inventor

Niigata, Japan

Sadao Kawata

This inventor holds 5 USPTO granted patents. Top assignees: Alps Electric Co., Ltd., Alps Electronic Co., Ltd.. Active years: 1989-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Sadao Kawata. Retrieved from https://idiyas.com/inventor/sadao-kawata

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 = 60.0

Average Co-Inventor Count = 1.3

ph-index = 3

Forward Citations = 22(Granted Patents)


Location History:

  • Koide, JP (1989)
  • Niigata-ken, JP (2003 - 2006)

Company Filing History:

goldMedal4 out of 4,048 
 
Alps Electric Co., Ltd.
 patents
silverMedal1 out of 15 
 
Alps Electronic Co., Ltd.
 patents

Years Active: 1989-2006

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5 patents (USPTO):Explore Patents
1. 7030628 - Method and device for evaluating charge potential (2006-04-18),
2. 6920014 - Magnetic head comprising slider and flexure bonded with conductive resin (2005-07-19),
3. 6667854 - Magnetic head having head element protected from electrostatic damage, and production method therefor (2003-12-23),
4. 4860432 - Method of manufacturing a magnetoresistive sensor (1989-08-29),
5. 4801881 - Magnetoresistive sensor having protective dummy elements (1989-01-31),

Title: Sadao Kawata: Innovator in Magnetic Head Technology

Introduction

Sadao Kawata is a notable inventor based in Niigata, Japan. He has made significant contributions to the field of magnetic head technology, holding a total of 5 patents. His work has been instrumental in advancing the efficiency and functionality of magnetic recording devices.

Latest Patents

Kawata's latest patents include a "Method and device for evaluating charge potential." This invention involves a charge potential evaluation device that converts the measured value of a potential difference in a charged plate monitor into a potential difference between the conductive pattern and load beam in a head gimbal assembly. The device utilizes specific expressions to account for distances and permittivities involved in the evaluation process. Another significant patent is for a "Magnetic head comprising slider and flexure bonded with conductive resin." This magnetic head features a slider with a recording and/or reproducing thin film element, and a flexure that includes an elastically deformable tongue piece. The slider and flexure are bonded together using a conductive resin film that contains carbon particles, carbon nano-tubes, or metal nano-powder, ensuring effective electrical connectivity.

Career Highlights

Throughout his career, Sadao Kawata has worked with prominent companies such as Alps Electric Co., Ltd. and Alps Electronic Co., Ltd. His experience in these organizations has allowed him to develop innovative solutions that enhance magnetic head technology.

Collaborations

Kawata has collaborated with notable individuals in his field, including Hidezi Sato and Toshihiko Sato. These collaborations have contributed to the advancement of his inventions and the overall progress in magnetic technology.

Conclusion

Sadao Kawata's contributions to magnetic head technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry, showcasing the importance of innovation in 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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