Takehiko Hiroshima

Title: Takehiko Hiroshima: Patents in Decorative Sheets and Protective Coatings.

Introduction

Takehiko Hiroshima is an inventor based in Tokyo, Japan, whose patent work includes innovations in decorative sheets and surface-protective coatings. He is associated with Dai Nippon Printing Co., Ltd. His portfolio includes 2 patents.

Latest Patents

Hiroshima’s latest patents address the performance and functionality of sheet materials.

“Decorative sheet” describes a sheet designed for strong abrasion resistance and reduced abrasion sound. It combines a linear pattern of parallel grooves with randomly arranged protrusions within that pattern. The protrusions are at least as high as the pattern’s raised portions, reinforcing the surface structure.

“Coating composition and sheet using same” concerns a coating that can provide a sheet with visible-light transmission and UV-ray blocking, alongside self-cleaning performance, weatherability, and transparency. The composition includes an ionizing radiation-curable resin and a hydrophilizing agent, such as a silicate compound or alkyl silicate. Curing the composition forms a protective surface layer on the sheet.

Career Highlights

Hiroshima’s patent work reflects an interest in improving the durability and practical performance of manufactured sheet products. His inventions address both surface texture and protective coatings, with attention to abrasion, sound, cleaning, weather exposure, and optical properties.

Collaborations

Hiroshima is associated with Dai Nippon Printing Co., Ltd. His listed coworkers include Yoshio Okabe and Yoko Takano.

Conclusion

Takehiko Hiroshima’s patents focus on enhancing sheet materials through reinforced decorative surfaces and protective coatings that combine durability with functional and optical properties.