Location History:
- Tokyo, JP (2017 - 2023)
- Machida, JP (2020 - 2023)
Company Filing History:
9 out of 356 
1 out of 26 
1 out of 1,001 
Years Active: 2017-2025
Title: Tatsuya Nagai: Innovator in Lithium-Ion Battery Technology
Introduction
Tatsuya Nagai is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of lithium-ion battery technology, holding a total of 10 patents. His work focuses on enhancing the performance and efficiency of batteries, which are crucial for various applications in modern technology.
Latest Patents
Nagai's latest patents include innovative compositions for positive electrodes in lithium-ion secondary batteries. One of his notable inventions is a positive electrode composition that incorporates an active material capable of occluding and releasing lithium ions, specifically a lithium cobalt composite oxide. This composition also utilizes carbon black and carbon nanotubes, which enhance conductivity. The carbon black used has a specific surface area of 100 to 400 m/g and a DBP absorption amount of 210 to 400 ml/100 g. Additionally, the carbon nanotubes have an average diameter of 20 nm or less, a specific surface area of 170 m/g or more, and an aspect ratio of 50 or more. Another patent focuses on a positive electrode composition that includes a lithium-nickel-cobalt-manganese complex oxide as the active material, along with similar conductive materials.
Career Highlights
Throughout his career, Tatsuya Nagai has worked with notable organizations, including Denka Company Limited and Jiangxi University of Science and Technology. His experience in these institutions has allowed him to develop and refine his innovative ideas in battery technology.
Collaborations
Nagai has collaborated with esteemed colleagues such as Shinichiro Osumi and Tetsuya Ito. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Tatsuya Nagai is a key figure in the innovation of lithium-ion battery technology, with a strong portfolio of patents that reflect his expertise and dedication to improving energy storage solutions. His contributions are vital for the ongoing development of efficient and effective battery systems.