Hachinohe, Japan

Isamu Otsuka

This inventor holds 5 USPTO granted patents and 3 published patent applications and 1 EPO patent. Top assignee: Seiko Epson Corporation. Active years: 2015-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Isamu Otsuka. Retrieved from https://idiyas.com/inventor/isamu-otsuka

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 = 2.7

ph-index = 3

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 2015-2020

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5 patents (USPTO):Explore Patents

Title: Isamu Otsuka: Innovator in Magnetic Technologies

Introduction

Isamu Otsuka is a notable inventor based in Hachinohe, Japan. He has made significant contributions to the field of magnetic technologies, holding a total of 5 patents. His work primarily focuses on advancements in electric motors and magnetic materials.

Latest Patents

One of Otsuka's latest patents is for a magnetic powder dust core with an entirely buried coil or magnet. This invention pertains to a 3-pole brush-equipped direct-current electric motor, which includes an armature, a field element, a shaft, a commutator, a brush, a bracket, and an end plate. The armature features a dust core made from a compressed powder compact of magnetic powder, with a coil embedded within it. The field element is equipped with a field magnet that generates magnetic flux, supported by a yoke housing.

Another significant patent involves a composite particle of soft-magnetic metallic material, along with a method for producing this composite particle. This invention describes a particle composed of a soft magnetic metallic material, which is coated with a layer of a different composition. The relationship between the Vickers hardness of the particle and the coating layer is defined, as well as the dimensions of the particle and the coating layer.

Career Highlights

Isamu Otsuka is currently employed at Seiko Epson Corporation, where he continues to innovate in the field of magnetic technologies. His work has contributed to the development of advanced electronic devices and electric motors, enhancing their efficiency and performance.

Collaborations

Otsuka has collaborated with notable coworkers, including Toshikuni Sato and Yu Maeda. Their combined expertise has fostered a creative environment that promotes innovation and technological advancement.

Conclusion

Isamu Otsuka's contributions to magnetic technologies and electric motors have established him as a prominent inventor in his field. His patents reflect a commitment to innovation and a deep understanding of magnetic materials. His work continues to influence the development of advanced technologies in the industry.

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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