This inventor holds 2 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignee: Fuji Jukogyo Kabushiki Kaisha. Active years: 2011-2012.
Company Filing History:
Years Active: 2011-2012
Title: Risa Miyagawa: Innovator in Lithium Ion Capacitors
Introduction
Risa Miyagawa is a prominent inventor based in Tokyo, Japan. She has made significant contributions to the field of energy storage, particularly through her work on lithium ion capacitors. With a total of 2 patents, her innovations are paving the way for advancements in energy efficiency and storage solutions.
Latest Patents
Miyagawa's latest patents focus on the development of lithium ion capacitors. The first patent describes a lithium ion capacitor that includes a positive electrode, a negative electrode, and a non-protonic organic solvent electrolytic solution of a lithium salt. The positive electrode active material is capable of reversibly doping a lithium ion and/or an anion. The negative electrode active material also allows for the reversible doping of lithium ions. This design ensures that the positive electrode potential remains at 2.0 V (relative to Li/Li) or less when specific capacitance and weight conditions are met.
The second patent further elaborates on the lithium ion capacitor's structure. It includes a positive electrode made of a material capable of reversibly doping and dedoping lithium ions and/or anions, alongside a negative electrode with similar capabilities. The electrolytic solution is composed of an aprotonic organic solvent electrolyte solution of a lithium salt. This design also ensures that the positive electrode potential remains at 2.0 V (vs. Li/Li) or less, enhancing the capacitor's efficiency.
Career Highlights
Miyagawa is currently employed at Fuji Jukogyo Kabushiki Kaisha, where she continues to innovate in the field of energy storage. Her work has garnered attention for its potential applications in various industries, including electronics and renewable energy.
Collaborations
Miyagawa collaborates with notable colleagues such as Nobuo Ando and Shinichi Tasaki. Their combined expertise contributes to the advancement of their projects and the overall success of their innovations.
Conclusion
Risa Miyagawa is a trailblazer in the development of lithium ion capacitors, with her patents reflecting her commitment to enhancing energy storage technology. Her contributions are vital to the future of energy efficiency and sustainability.