Yasunari Soda

Title: Yasunari Soda: Innovator in Polymer Technology

Introduction

Yasunari Soda is a prominent inventor based in Koganei, Japan. He has made significant contributions to the field of polymer technology, holding a total of 5 patents. His innovative work focuses on methods for producing graft copolymers and pattern replication techniques.

Latest Patents

One of his latest patents is a method for the production of graft copolymers. This method involves adding an additive to a base polymer that can form first radicals when irradiated with radiation. The additive combines with these first radicals to create second radicals that are stable against oxygen. The process includes irradiating the base polymer containing the additive and introducing a monomer in an oxygen-free atmosphere to achieve graft copolymerization. Another notable patent is a pattern fabricating method that utilizes lithography on a heavy metal layer. This method addresses the issue of secondary electrons generated during irradiation, which can reduce the accuracy of the pattern formed on the resist. By incorporating a film that absorbs secondary electrons, the method allows for the fabrication of patterns as thin as 1.5 microns, overcoming limitations of prior art.

Career Highlights

Yasunari Soda is currently employed at Hitachi, Ltd., where he continues to advance his research and development efforts. His work has been instrumental in enhancing the capabilities of polymer applications in various industries.

Collaborations

Throughout his career, Yasunari has collaborated with notable colleagues, including Kozo Mochiji and Takeshi Kimura. These partnerships have contributed to the success of his innovative projects and patents.

Conclusion

Yasunari Soda's contributions to polymer technology through his patents and collaborative efforts highlight his role as a leading inventor in the field. His innovative methods continue to push the boundaries of what is possible in polymer applications.