This inventor holds 17 USPTO granted patents and 8 published patent applications and 1 EPO patent. Top assignees: Nissan Chemical Industries Limited, Nissan Chemical Corporation, The University of Toyama. Active years: 2014-2026.
Company Filing History:
11 out of 1,235 
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Years Active: 2014-2026
Title: Yuki Usui: Innovator in Polymer Technology
Introduction
Yuki Usui, based in Toyama, Japan, is a prolific inventor with a remarkable portfolio of 15 patents. His work primarily focuses on advancements in polymer technology, particularly in applications for cell separation and resist underlayer films, making significant contributions to various industries.
Latest Patents
Yuki Usui's innovation is exemplified in his recent patents. One of his notable inventions is the development of substrates coated with selective cell separation or cell culture polymers. This patent introduces a ligand-bearing substrate featuring a polymer rich in specific structural units, enhancing the efficiency of cell separation processes.
Another significant patent is a composition for forming a resist underlayer film, accompanied by a method for creating resist patterns. This invention outlines a method that involves applying a specialized composition to substrates with surface recesses, resulting in an effective underlayer film filled in those recesses. The composition comprises a copolymer, a cross-linkable compound, and other critical components, ensuring precision in the pattern formation.
Career Highlights
Throughout his career, Yuki Usui has worked with prominent companies, including Nissan Chemical Industries Limited and Nissan Chemical Corporation. His dedication to polymer research and development has seen him take on pivotal roles that leverage his expertise in material sciences.
Collaborations
Usui has collaborated with esteemed colleagues, most notably Takahiro Kishioka and Hiroto Ogata. Their collective efforts have facilitated groundbreaking advancements in polymer applications, fostering a collaborative environment that stimulates innovation and research.
Conclusion
Yuki Usui stands out as a key figure in the realm of polymer technology. With his innovative patents and experience in significant chemical industries, he continues to contribute to advancements that impact both research and industrial applications significantly. His work serves as an inspiration for aspiring inventors and innovators alike.