Tokyo, Japan

Yukio Nakashima

This inventor holds 21 USPTO granted patents and 2 published patent applications and 5 EPO patents, primarily in Power Conversion Technology. Top assignee: Mitsubishi Electric Corporation. Active years: 2016-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yukio Nakashima. Retrieved from https://idiyas.com/inventor/yukio-nakashima

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

Calculating rank
USPTO Granted Patents = 21 

% Patents Active = 90.5

 

Average Co-Inventor Count = 2.1

ph-index = 3

Forward Citations = 21(Granted Patents)


Company Filing History:


Years Active: 2016-2025

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Areas of Expertise:
Power Conversion
Power Semiconductor
Cooling Device
Electric Vehicle
Power Converter
Main Circuit Wiring
Vehicle Auxiliary Power
Three-Level Conversion
Heat Radiating
Parallel Driving
Power Module
Laminated Bus Bar
21 patents (USPTO):Explore Patents

Title: Innovations by Yukio Nakashima: A Pioneer in Power Conversion Technology

Introduction

Yukio Nakashima, a leading inventor based in Tokyo, Japan, holds an impressive portfolio of 20 patents. He has made significant contributions to the field of power conversion technology, making him a noteworthy figure in the industry.

Latest Patents

One of Yukio Nakashima's latest innovations is a **Power Conversion Apparatus**. This innovative apparatus features a converter main circuit designed to convert AC power into DC power, along with an inverter main circuit that converts the DC power back into AC power. Notably, the design includes a common cooler that efficiently cools the first and second switching elements integrated within these circuits. The modularized approach allows for improved assembly and thermal management, ensuring high performance and reliability in power conversion systems.

Additionally, he has developed a **Parallel Driving Device and Power Conversion Device**. This device enhances the efficiency of parallel-connected semiconductor elements by incorporating a control unit that detects temperature differences among the elements. Utilizing this information, the control unit generates timing control signals tailored to ensure that the semiconductor elements operate optimally, improving overall device performance.

Career Highlights

Yukio Nakashima's professional journey has led him to work with Mitsubishi Electric Corporation, a prominent player in the electrical and electronic equipment sector. His work is marked by a commitment to innovation and excellence, reflecting the core values of the company.

Collaborations

Throughout his career, Nakashima has collaborated with esteemed colleagues, including Takayoshi Miki and Tomohiro Kobayashi. Together, they have combined their expertise to push the boundaries of technology in power conversion and semiconductor applications.

Conclusion

Yukio Nakashima's contributions to the field of power conversion technology have established him as a notable inventor. His innovative patents not only enhance the functionality of electrical devices but also pave the way for future advancements in the industry. As he continues his work at Mitsubishi Electric Corporation, he remains an influential figure in shaping the future of power conversion technologies.

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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