Company Filing History:
Years Active: 1984-1985
Title: Innovations of Jun-ichiro Setsune in Solar Energy Storage
Introduction
Jun-ichiro Setsune is a notable inventor based in Sakai, Japan. He has made significant contributions to the field of solar energy storage, holding 2 patents that focus on innovative materials and methods for harnessing solar energy. His work is particularly relevant in the context of sustainable energy solutions.
Latest Patents
Setsune's latest patents include advancements in solar energy storage materials and methods. One of his key inventions is a solar energy storage material comprising N,N'-bis(phenylacetyl)indigo dissolved in a polar solvent. This invention addresses the limitations of previous indigo derivatives, which had low energy storage capacities and high thermal isomerization rates. In contrast, Setsune's material can store about 60 cal of energy per 1 g, with a half-life period of isomerization from cis to trans form in acetonitrile at 17°C being 1,264 minutes, making it suitable for practical applications.
Another significant patent is a sunlight-energy-storing method that utilizes an indigo derivative. This method allows for the storage of light energy through the photoisomerization of the molecule from the trans-form to the cis-form. Unlike previous compounds that required expensive and harmful solvents, Setsune's indigo derivative is a pyridinium salt that is soluble in safe and inexpensive solvents like water and ethanol. This innovation not only enhances the practicality of solar energy storage but also promotes safety and cost-effectiveness.
Career Highlights
Setsune is currently associated with Matsushita Electric Industrial Co., Ltd., where he continues to develop innovative solutions in the field of energy storage. His work has garnered attention for its potential impact on renewable energy technologies.
Collaborations
Some of his notable coworkers include Teijiro Kitao and Shoichi Ishihara, who have contributed to his research and development efforts.
Conclusion
Jun-ichiro Setsune's contributions to solar energy storage represent a significant advancement in the field. His innovative materials and methods not only improve energy storage capacity but also enhance the practicality and safety of solar energy solutions. His work continues to inspire advancements in sustainable energy technologies.