Kokubunji, Japan

Yu Yamada

This inventor holds 22 USPTO granted patents and 4 published patent applications and 1 EPO patent, primarily in Optical Systems. Top assignees: Canon Kabushiki Kaisha, Hitachi, Ltd., Nippon Steel Chemical Co., Ltd.. Active years: 1976-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yu Yamada. Retrieved from https://idiyas.com/inventor/yu-yamada

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

USPTO Granted Patents = 22 

% Patents Active = 90.9

 

Average Co-Inventor Count = 1.7

ph-index = 6

Forward Citations = 144(Granted Patents)


Location History:

  • Kodaira, JA (1976)
  • Kokubunji, JA (1977)
  • Kokubunji, JP (1978 - 1989)
  • Tokyo, JP (1984 - 2021)

Company Filing History:


Years Active: 1976-2026

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Areas of Expertise:
Pressure Sensor
Wearable Sensor
Transformer
Induction Device
Electroluminescent Device
Zoom Lens
Variable Magnification
Image Rotating
Optical Scanning
Film Reader
Copying Lens
Projection Masking
22 patents (USPTO):Explore Patents

Title: Yu Yamada: A Pioneer in Transformer Technology and Stationary Induction Devices

Introduction

Yu Yamada, located in Kokubunji, Japan, is a distinguished inventor known for his significant contributions to the field of electrical engineering. With an impressive portfolio of 21 patents, Yamada's work primarily focuses on enhancing the performance of transformers and stationary induction electrical devices.

Latest Patents

Among Yamada's latest inventions, two notable patents are focused on transforming electrical engineering practices. The first patent relates to a **Transformer** designed to improve the performance of transformers equipped with wound iron cores. This innovation features multi-layer band-shaped magnetic materials and a novel support structure that enhances stability and efficiency. The presence of a wound iron core holding member and a coil holding member additionally contributes to the overall effectiveness of the transformer.

The second patent pertains to a **Stationary Induction Electric Device** aimed at reducing energy loss. This invention comprises an annular first iron core block, which is surrounded by a second iron core block, creating a robust design for optimal functionality. Key support plates hold the upper portions of these iron core blocks, and the careful design of curvature radii enhances the device's operational effectiveness.

Career Highlights

Yamada has built a successful career working with prominent companies such as Canon Kabushiki Kaisha and Nippon Steel Chemical Co., Ltd. These affiliations have provided him with invaluable experience and insights into the intricacies of electrical engineering innovation. His contributions have propelled advancements in transformer technology and induction devices, positioning him as a knowledgeable figure in his field.

Collaborations

Throughout his career, Yu Yamada has collaborated with esteemed colleagues, including Mitsuhiro Tokuhara and Yukio Takemura. Their combined expertise has fostered an environment of innovation, leading to groundbreaking developments in electrical engineering.

Conclusion

Yu Yamada exemplifies the spirit of innovation within the realm of transformer technology and stationary induction devices. His patents not only showcase his skill and creativity but also contribute significantly to the advancement of electrical engineering as a whole. Given his track record, Yamada will undoubtedly continue to leave a meaningful impact on 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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