Company Filing History:
Years Active: 1993-2000
Title: Yasuhiro Umemoto: Innovator in Conducting Organic Polymers
Introduction
Yasuhiro Umemoto is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of conducting organic polymers, holding a total of 3 patents. His work focuses on innovative methods for modifying surfaces and enhancing the properties of materials used in various applications.
Latest Patents
One of Umemoto's latest patents is a method for the modification of the surface of pressure-sensitive adhesives using organic polymers. This invention involves a conducting organic polymer formed by doping an organic polymer with a protonic acid that has a dissociation constant value pKa of less than 4.8. The organic polymer features a main repeating unit represented by a specific general formula, where the molar fractions of the quinonediimine and phenylenediamine structural units are defined. This polymer is notable for its solubility in organic solvents in the undoped state and has an intrinsic viscosity of more than 0.4 dl/g when measured in N-methyl-2-pyrrolidone at 30°C. Additionally, the invention includes a film made from the conducting organic polymer and a composition of the conducting organic polymer.
Career Highlights
Yasuhiro Umemoto is currently associated with Nitto Denko Corporation, a leading company in the field of advanced materials. His work at the company has allowed him to explore and develop innovative solutions that enhance the functionality of various products.
Collaborations
Throughout his career, Umemoto has collaborated with notable colleagues, including Masao Abe and Akira Ohtani. These collaborations have contributed to the advancement of research and development in the field of conducting organic polymers.
Conclusion
Yasuhiro Umemoto is a distinguished inventor whose work in conducting organic polymers has led to significant advancements in material science. His innovative patents and collaborations continue to influence the industry and pave the way for future developments.
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