Hitachi, Japan

Etsuhiko Shoyama

This inventor holds 1 USPTO granted patent. Top assignee: Hitachi, Ltd.. Active years: 1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Etsuhiko Shoyama. Retrieved from https://idiyas.com/inventor/etsuhiko-shoyama

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


% Patents Active = 100.0

Average Co-Inventor Count = 6.0

ph-index = 1

Forward Citations = 11(Granted Patents)


Company Filing History:


Years Active: 1979

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1 patent (USPTO):Explore Patents

Title: Etsuhiko Shoyama: Innovator in Rotary Electric Machines

Introduction

Etsuhiko Shoyama is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of rotary electric machines, showcasing his expertise through innovative patents. His work is particularly recognized for enhancing the efficiency and functionality of electric machinery.

Latest Patents

One of Etsuhiko Shoyama's key patents is for a "Supporting device for rotor winding in rotary electric machine." This invention involves a rotor that includes a rotary shaft, a core mounted on the shaft, and windings that are wound around the core. The design features axial end portions of the windings that protrude from the core, along with retaining rings that are fixedly mounted on the shaft. These rings extend around the outer peripheral surface of each protruded end portion, preventing radial movement during rotation. Additionally, shielding layers are positioned to prevent cooling gas from contacting the inner surfaces of the retaining rings. This innovative design enhances the reliability and performance of rotary electric machines.

Career Highlights

Etsuhiko Shoyama is associated with Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to contribute to advancements in electric machinery, making a lasting impact in the industry. With a patent portfolio that includes 1 patent, Shoyama continues to be a valuable asset to his team and the field.

Collaborations

Throughout his career, Etsuhiko Shoyama has collaborated with talented individuals such as Katunori Kimura and Satoshi Mizukami. These collaborations have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Etsuhiko Shoyama's contributions to the field of rotary electric machines exemplify his dedication to innovation and engineering excellence. His patented inventions continue to influence the industry, showcasing the importance of creativity in technological advancement.

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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