Location History:
- Yokohama, JP (2015 - 2017)
- Tokyo, JP (2017 - 2019)
Company Filing History:
Years Active: 2015-2024
Title: Akihisa Tonegawa: Innovator in Lithium-Ion Battery Technology
Introduction
Akihisa Tonegawa is a prominent inventor known for his significant contributions to lithium-ion battery technology. He is based in Yokohama, Japan, and has been awarded a total of seven patents throughout his career. His work focuses on enhancing the performance and efficiency of batteries, which are crucial for various applications in modern technology.
Latest Patents
Tonegawa's latest patents include innovations such as a positive electrode mixture layer and a conductive additive for lithium-ion secondary batteries. One of his notable inventions is a positive electrode mixture layer designed to produce lithium-ion batteries with high rate characteristics at both ordinary and low temperatures. This invention features a unique combination of a positive electrode active material, a binder, and a conductive additive, which includes carbon black and two types of carbon nanotubes. The specific content rates of these materials are meticulously defined to optimize battery performance.
Another significant patent involves a carbon material that contains vanadium, which is suitable for non-aqueous electrolytic secondary batteries. This carbon material is characterized by its specific particle diameter, tapping density, and surface area, making it ideal for applications requiring low resistance and high coulomb efficiency.
Career Highlights
Throughout his career, Tonegawa has worked with notable companies such as Showa Denko K.K. and Resonac Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in battery technology.
Collaborations
Some of Tonegawa's notable coworkers include Isao Kabe and Akihiko Shirakawa. Their collaborative efforts have contributed to advancements in the field of battery technology.
Conclusion
Akihisa Tonegawa's work in lithium-ion battery technology exemplifies the importance of innovation in energy storage solutions. His patents reflect a commitment to improving battery performance, which is essential for the advancement of modern technology.