Saitama, Japan

Naoaki Takeda

This inventor holds 12 USPTO granted patents and 1 published patent application. Top assignees: Honda Motor Co., Ltd., Honda Giken Kogyo Kabushiki Kaisha. Active years: 1999-2022.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naoaki Takeda. Retrieved from https://idiyas.com/inventor/naoaki-takeda

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

USPTO Granted Patents = 12 

% Patents Active = 75.0

Average Co-Inventor Count = 4.4

ph-index = 2

Forward Citations = 13(Granted Patents)


Location History:

  • Wako, JP (2000 - 2020)
  • Saitama, JP (1999 - 2022)

Company Filing History:


Years Active: 1999-2022

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12 patents (USPTO):Explore Patents

Title: Innovations by Naoaki Takeda: Driving Efficiency in Hybrid Vehicles

Introduction

Naoaki Takeda, an esteemed inventor based in Saitama, Japan, has made significant contributions to the field of automotive engineering, particularly in developing technologies aimed at enhancing hybrid vehicle performance. With a total of 12 patents to his name, Takeda's work showcases his commitment to innovation and efficiency.

Latest Patents

Among his latest inventions, Takeda has developed a battery temperature-raising device for hybrid vehicles. This innovative device intelligently adjusts the battery temperature to optimize performance based on the vehicle's mode of operation. In engine travelling mode, the device connects a first battery circuit to the main circuit when the engine water temperature surpasses a specified threshold, effectively using cooling water to elevate the battery temperature. Conversely, in motor travelling mode, it forms a closed circuit with a heat exchanger to increase battery temperature through heat exchange with refrigerants, ensuring optimal operational efficiency.

Additionally, Takeda has designed a heat accumulation and dissipation device for internal combustion engines. This device improves energy efficiency by utilizing a heat accumulator within the cooling circuit to recover exhaust heat. Upon starting the engine, the device circulates cooling water from the heat accumulator to dissipate excess heat, contributing to improved performance and reduced energy wastage.

Career Highlights

Naoaki Takeda has garnered valuable experience at prominent companies such as Honda Motor Co., Ltd. and Honda Giken Kogyo Kabushiki Kaisha. His tenure at these companies has allowed him to refine his innovative approaches and contribute to the advancement of hybrid vehicle technology.

Collaborations

Throughout his career, Takeda has collaborated with notable colleagues, including Masanobu Takazawa and Hajime Uto. Their combined expertise has undoubtedly fostered an environment of creativity and innovation, propelling the development of cutting-edge automotive technologies.

Conclusion

Naoaki Takeda's inventive spirit and dedication to engineering excellence have made a substantial impact on hybrid vehicle technology. His patented inventions not only enhance vehicle performance but also align with the growing demand for sustainable automotive solutions. As he continues to push the boundaries of innovation, Takeda represents the future of efficient vehicle design.

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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