Toshiro Fujita

Title: Innovations by Toshiro Fujita: Pioneering Secondary Cell Technologies

Introduction

Toshiro Fujita is a notable inventor based in Kasumigaura, Japan, recognized for his contributions to secondary cell technology. With two patents to his name, Fujita has made significant advancements in the field of energy storage solutions, particularly focusing on the design and fabrication of efficient and durable secondary batteries.

Latest Patents

Fujita's innovative work includes two recent patents that demonstrate his expertise in secondary cell technology. The first patent describes a secondary cell comprising an electrode roll, which includes a positive foil coated with a positive-electrode material and a negative foil with a negative-electrode material, both wound through a separator into a flat shape around a winding core. This invention features a case housing the electrode roll, a sealing cover, and both positive and negative terminals electrically connected to current collector plates held by the cover. This ingenious design aims to enhance the overall efficiency and performance of secondary cells.

The second patent is centered around a secondary battery and its fabrication method. This battery includes a jelly roll with positive and negative electrodes wound via a separator and housed within a case that has a lid and electrically conductive input/output members. Notably, the structure involves swage-fused connections between the external conductive members and the current collector plates, with an oxide layer formed at the surface of each fused area to improve conductivity and reliability.

Career Highlights

Currently, Toshiro Fujita is employed at Hitachi Vehicle Energy, Ltd., a company renowned for its commitment to advancing battery technologies. His role in the organization positions him as a vital contributor to innovative energy solutions tailored for the automotive industry and beyond.

Collaborations

Fujita has worked alongside talented colleagues, including Kinya Aota and Kouichi Kajiwara, fostering a collaborative environment that encourages creativity and advancement in energy storage technologies. Their teamwork has likely played a pivotal role in the successful development of Fujita’s patents.

Conclusion

Toshiro Fujita's contributions to the field of secondary cell technology are commendable, reflecting his dedication and skill as an inventor. His innovative designs and methods not only highlight his individual achievements but also contribute to the broader advancement of energy storage technologies, reinforcing the importance of continual innovation in the industry.