Hitachi, Japan

Takayoshi Nakamura

This inventor holds 24 USPTO granted patents and 3 published patent applications and 5 EPO patents, primarily in Electric Vehicle Technology. Top assignees: Hitachi, Ltd., Agency of Industrial Science and Technology, Hitachi Astemo Ltd.. Active years: 1989-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takayoshi Nakamura. Retrieved from https://idiyas.com/inventor/takayoshi-nakamura

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

USPTO Granted Patents = 24 

% Patents Active = 54.2

 

Average Co-Inventor Count = 5.0

ph-index = 10

Forward Citations = 391(Granted Patents)


Location History:

  • Chiyoda, JP (2003)
  • Ibaraki, JP (1989 - 2009)
  • Hitachi, JP (2003 - 2013)
  • Hitachinaka, JP (2015)
  • Tokyo, JP (2003 - 2024)

Company Filing History:


Years Active: 1989-2024

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Areas of Expertise:
Electric Vehicle
Power Converter
Cooling System
Electromechanical Motor
Wheel Drive Device
Inverter
Heat Transfer Structure
Liquid Cooling
Plasma Display
Semiconductor Device
Work Vehicle
24 patents (USPTO):Explore Patents

Title: **The Innovative Mind of Takayoshi Nakamura**

Introduction

Takayoshi Nakamura, based in Hitachi, Japan, is a prolific inventor with an impressive portfolio of 22 patents. His work focuses on developing advanced technologies for electric vehicles and electromechanical systems, showcasing a commitment to innovation in the field of transportation and machinery.

Latest Patents

Among his latest patents, Nakamura has developed two significant inventions: the **Electrically Driven Work Vehicle** and the **Wheel Electric Driving Unit**. The electrically driven work vehicle features a configuration that includes an engine, a generator driven by the engine, and a pair of driving wheels arranged on either side of the vehicle body frame. This design utilizes a traveling electric motor for each wheel, which contains multiple electric motors to drive the wheels simultaneously. This innovative setup allows for the optimization of drive systems to effectively meet the payload requirements of dump trucks and similar vehicles.

Another notable invention is the **Electromechanical Integral Motor**. This highly reliable motor integrates an axial gap type motor with a power conversion control device, which is strategically mounted on the end bracket of the motor. The design includes a space between the end bracket and the power conversion control device, thereby enhancing the motor's efficiency and reliability. The end bracket and the control device are secured with various fixing members, ensuring stability during operation.

Career Highlights

Throughout his career, Takayoshi Nakamura has been associated with renowned companies, prominently including Hitachi, Ltd. His contributions have played a crucial role in advancing the technical capabilities of electric vehicles and motor technology within the industry.

Collaborations

Nakamura has collaborated with fellow innovators Ryuichi Saito and Akihiro Tamba, further expanding the scope and impact of his inventions. These partnerships have fostered a collaborative environment for sharing knowledge and enhancing technological advancements in their respective fields.

Conclusion

Takayoshi Nakamura exemplifies the spirit of innovation through his extensive patent portfolio and significant contributions to electric vehicle technology. His latest inventions are not only a testament to his ingenuity but also hold the potential to influence future developments in the field of electrification in transportation.

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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