Yusuke Sugiyama

Title: Yusuke Sugiyama: Innovator in Hard Coat Film Technology

Introduction

Yusuke Sugiyama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of materials science, particularly in the development of hard coat films. With a total of 5 patents to his name, Sugiyama's work has garnered attention for its innovative approaches and practical applications.

Latest Patents

One of Sugiyama's latest patents is focused on a hard coat film and the method for producing it. This invention provides a hard coat film that exhibits excellent adhesion to a hard coat layer when a cycloolefin polymer film is used as a base material. The hard coat film comprises a hard coat layer containing an ionizing radiation curable resin laminated on at least one surface of a cycloolefin polymer base film through a primer layer. The primer layer is composed of a modified polyolefin resin, which is graft-modified with an α,β-unsaturated carboxylic acid or a derivative thereof, along with a (meth)acrylic acid ester. The graft weight of the α,β-unsaturated carboxylic acid or derivative is maintained between 0.4 to 7 wt. % based on the total weight of the modified polyolefin resin.

Another notable patent by Sugiyama also focuses on a hard coat film with excellent adhesion, particularly over time. This invention emphasizes the importance of the primer layer, which has an arithmetic average surface roughness (Ra) ranging from 0.5 nm to 15.0 nm. Additionally, the surface of the primer layer has a static friction coefficient between 0.6 and 2.0, enhancing the film's performance.

Career Highlights

Throughout his career, Yusuke Sugiyama has worked with notable companies such as Nippon Paper Industries Co., Ltd. and Nippon Paper Chemicals Co., Ltd. His experience in these organizations has allowed him to refine his expertise in materials science and innovation.

Collaborations

Sugiyama has collaborated with esteemed colleagues, including Takeo Suzuki and Takeshi Hotta. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.

Conclusion

Yusuke Sugiyama stands out as a key figure in the innovation of hard coat