Company Filing History:
Years Active: 2005-2007
Title: Takao Nirasawa: Innovator in Battery Technology
Introduction
Takao Nirasawa is a prominent inventor based in Fukushima, Japan. He has made significant contributions to the field of battery technology, particularly in the development of secondary batteries and electrolytes. With a total of 2 patents, Nirasawa's work focuses on enhancing the performance and reliability of energy storage systems.
Latest Patents
Nirasawa's latest patents include innovations in secondary batteries and the electrolytes used in them. One of his notable inventions is a secondary battery that exhibits less deterioration of capacity, maintaining high energy densities even in high-temperature environments. This battery features an electrolyte that contains an anion expressed by (PFQR), which helps prevent degradation. The formula includes variables where Q represents at least one of CF, CF, and CF, while R signifies SOCF and/or SOCF. Additionally, the invention incorporates an anion expressed by N(CFSO), further enhancing the electrolyte's stability. This design ensures a high capacity recovery rate after storage and a heavy load discharge maintenance rate, providing high reliability in demanding conditions.
Another significant patent is for a nonaqueous electrolyte secondary battery. This battery includes a positive electrode with an active material and a negative electrode capable of being doped/undoped with lithium. The nonaqueous electrolyte comprises various compounds, including thiols and thiazoles, which contribute to the battery's longevity. Notably, the capacity of this battery remains stable after extensive cycling, resulting in a significantly long cycle life.
Career Highlights
Nirasawa is currently employed at Sony Corporation, where he continues to innovate in the field of battery technology. His work has been instrumental in advancing the capabilities of energy storage solutions, making them more efficient and reliable.
Collaborations
Throughout his career, Nirasawa has collaborated with notable colleagues, including Atsuo Omaru and Hidetoshi Ito. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.
Conclusion
Takao Nirasawa is a key figure in the development of advanced battery technologies. His patents reflect a commitment to improving energy storage systems, ensuring they meet the demands of modern applications. His contributions continue to influence the industry and pave the way for future innovations in battery technology.