Kariya, Japan

Yasufumi Yamada

This inventor holds 1 USPTO granted patent. Top assignees: Nippondenso Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki Kaisha. Active years: 1977.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasufumi Yamada. Retrieved from https://idiyas.com/inventor/yasufumi-yamada-2ldhexfe

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 31(Granted Patents)


Company Filing History:


Years Active: 1977

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1 patent (USPTO):Explore Patents

Title: Yasufumi Yamada: Innovator in Electric Automobile Transmission Systems

Introduction

Yasufumi Yamada is a notable inventor based in Kariya, Japan. He has made significant contributions to the field of electric automobiles, particularly in the area of automatic transmission systems. His innovative work has led to the development of a patented control system that enhances the performance of electric vehicles.

Latest Patents

Yamada holds a patent for a "Control system for automatic transmission for electric automobiles." This control system includes several key components such as an electric motor drive control, a changeover device, a speed change control, a torque setting device, a transmitting force detector, and a motor output torque detector. The system is designed to counteract fluctuations in the transmission output shaft torque by utilizing the DC electric motor output torque, thereby achieving extremely smooth transmission of motive power. He has 1 patent to his name.

Career Highlights

Throughout his career, Yasufumi Yamada has worked with prominent companies in the automotive industry. He has been associated with Toyota Motor Corporation and Denso Corporation, where he contributed to various projects focused on enhancing vehicle technology. His expertise in electric vehicle systems has positioned him as a valuable asset in the field.

Collaborations

Yamada has collaborated with notable colleagues such as Tomoo Ishihara and Toshimitsu Sakai. Their combined efforts have further advanced the development of innovative technologies in the automotive sector.

Conclusion

Yasufumi Yamada's contributions to electric automobile transmission systems exemplify the impact of innovation in the automotive industry. His patented control system represents a significant advancement in achieving smoother and more efficient vehicle performance.

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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