Takamasa Nakagawa

Title: Takamasa Nakagawa: Innovator in Battery Technology

Introduction

Takamasa Nakagawa is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of battery technology, holding a total of 5 patents. His work focuses on enhancing the efficiency and performance of non-aqueous electrolyte secondary batteries.

Latest Patents

One of Nakagawa's latest patents is a battery device that comprises a nonaqueous electrolyte secondary battery equipped with an electric power generating element and a pressing member. This pressing member applies pressure in the stacking direction, ensuring optimal performance. The electric power generating element includes a positive electrode with an active material layer, a negative electrode with a similar layer, and a separator that holds an electrolyte solution. This innovative design satisfies specific thickness requirements to enhance battery efficiency.

Another notable patent is for an electrode designed for non-aqueous electrolyte secondary batteries. This electrode retains its shape while maintaining a high discharge capacity. It features a current collector and an electrode active material layer, which includes polyvinylidene fluoride (PVdF) in a non-crystallized state. This formulation is crucial for achieving the desired performance in batteries with a liquid volume coefficient of 1.4 to 2.0.

Career Highlights

Takamasa Nakagawa is currently employed at Nissan Motor Company Limited, where he continues to develop cutting-edge battery technologies. His work at Nissan has positioned him as a key player in the automotive industry's shift towards more efficient energy solutions.

Collaborations

Throughout his career, Nakagawa has collaborated with notable colleagues, including Hiroyuki Tanaka and Takeshi Nakano. These partnerships have fostered innovation and contributed to the advancement of battery technology.

Conclusion

Takamasa Nakagawa's contributions to battery technology are noteworthy, with several patents that enhance the performance of non-aqueous electrolyte secondary batteries. His work at Nissan Motor Company Limited and collaborations with esteemed colleagues further underscore his impact in the field.