Company Filing History:
Years Active: 1991-1992
Title: Yasunari Okamoto: Innovator in Polyimide Resins and Lithium Niobate Thin Films
Introduction
Yasunari Okamoto is a notable inventor based in Nara, Japan. He has made significant contributions to the field of materials science, particularly in the development of innovative polyimide resins and evaluation methods for lithium niobate thin films. With a total of 3 patents to his name, Okamoto continues to push the boundaries of technology.
Latest Patents
One of Okamoto's latest patents is for a cation exchange polyimide resin. This resin exhibits resistance to organic solvents and contains polyamidocarboxylic acid units that provide sites for ion exchange. The resin is represented by a specific formula, wherein R¹ is a tetravalent organic group, and R² is a bivalent organic group, capable of trapping cations from organic solvents. Another significant patent involves a method for evaluating a lithium niobate thin film. This method includes measuring the absorption edge wavelength of the thin film and evaluating the lithium-to-niobium composition ratio. The apparatus designed for this purpose includes a thin film-forming body and an evaluation device equipped with a monitor substrate, an optical path for spectrometry, an ultraviolet ray source, and a measurement part for assessing the absorption edge wavelength.
Career Highlights
Yasunari Okamoto is currently associated with Sharp Kabushiki Kaisha Corporation, where he applies his expertise in materials science. His work has been instrumental in advancing the understanding and application of polyimide resins and lithium niobate thin films.
Collaborations
Okamoto has collaborated with notable colleagues such as Hirotaka Ohno and Hironori Matsunaga. These collaborations have further enriched his research and development efforts in the field.
Conclusion
Yasunari Okamoto is a distinguished inventor whose work in polyimide resins and lithium niobate thin films has made a significant impact in materials science. His innovative patents and collaborations highlight his commitment to advancing technology.