Location History:
- Sagamihara, JP (2019)
- Kanagawa, JP (2019 - 2020)
Company Filing History:
Years Active: 2019-2020
Title: Innovations of Kouzou Takeda: A Pioneer in Lithium Ion Battery Technology
Introduction
Kouzou Takeda is a distinguished inventor based in Kanagawa, Japan, renowned for his significant contributions to the field of lithium ion battery technology. With a portfolio consisting of four patented innovations, Takeda's work focuses on enhancing the performance of negative electrode materials and optimizing lithium ion secondary batteries.
Latest Patents
Among his latest patents is an innovative graphite-based negative electrode active material. This invention features two distinct graphite particles, one of which is spheroidized while the other has a lower roundness. The unique composition comprises a combination where the content of the second graphite particle ranges from 1 to 30% by mass. This careful calibration leads to a particle mixture with a higher tap density than either graphite particle alone, enhancing battery efficiency.
Another remarkable patent by Takeda outlines a negative electrode for lithium ion secondary batteries, which consists of a current collector and a negative electrode active material layer. This layer is made up of composite particles featuring cores of graphite and coatings of non-graphite-based carbon materials. The innovation includes specific particle size ranges and meticulous mixing ratios that significantly improve the performance and density of the negative electrode active material.
Career Highlights
Kouzou Takeda has collaborated with prominent companies in the energy sector, such as Envision AESC Energy Devices Ltd. and NEC Energy Devices, Ltd. His work in these organizations has contributed to the advancement of energy storage technologies and their practical applications in various electronic devices.
Collaborations
Throughout his career, Takeda has worked alongside esteemed colleagues including Hiroo Takahashi and Masaaki Matsuu. Their collaborative efforts have played a pivotal role in refining concepts and driving innovation in the field of energy devices, specifically regarding lithium ion batteries.
Conclusion
Kouzou Takeda's innovative contributions have made substantial impacts on the energy storage landscape. His patents not only pioneer advancements in lithium ion battery technology but also set a benchmark for future research and development in the field. As technology continues to evolve, Takeda's work remains integral to the progression of efficient and sustainable energy systems.