Toyota, Japan

Keiji Tajima

This inventor holds 1 USPTO granted patent. Top assignee: Toyota Jidosha Kabushiki Kaisha. Active years: 2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiji Tajima. Retrieved from https://idiyas.com/inventor/keiji-tajima

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


% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 1


Company Filing History:


Years Active: 2021

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1 patent (USPTO):Explore Patents

Title: **Keiji Tajima: Innovator in Electrically Driven Vehicle Technology**

Introduction

Keiji Tajima, an esteemed inventor based in Toyota, Japan, has made significant contributions to the automotive industry through his innovative concepts. He holds a patent for an electrically driven vehicle design that showcases his commitment to advancements in transportation technology.

Latest Patents

Tajima's notable patent focuses on an electrically driven vehicle, which is equipped with two motors: a first motor that outputs torque to either the front or rear wheels, and a second motor that serves the opposite set of wheels. This design allows for improved control and performance, especially in situations requiring negative torque. The second motor is engineered to maintain a minimum positive torque threshold while the first motor adjusts to achieve the necessary driving torque, enhancing the vehicle's overall efficiency and responsiveness.

Career Highlights

As an inventor at Toyota Motor Corporation, Tajima has played a pivotal role in developing cutting-edge technologies that align with the company’s vision for sustainable and efficient transportation. His innovative work reflects a deep understanding of electric vehicle mechanics, which is critical in today’s evolving automotive landscape.

Collaborations

Tajima collaborates with fellow engineer Eiji Fukushiro, sharing insights and expertise that contribute to their joint efforts in pushing the boundaries of electric vehicle technology. Together, they strive to optimize design and functionality, ensuring that their innovations can meet the demands of modern drivers.

Conclusion

Keiji Tajima’s work exemplifies the intersection of innovation and practicality in automotive engineering. His patented technology for electrically driven vehicles represents a significant leap forward in enhancing vehicle performance and sustainability. As electric vehicles continue to shape the future of transportation, inventors like Tajima are crucial in driving forward these essential advancements.

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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