Shinnosuke Hirata

Title: Shinnosuke Hirata: Inventor of a Decorative Sheet for Injection-Molded Articles.

Introduction

Shinnosuke Hirata is an inventor associated with Dai Nippon Printing Co., Ltd. His listed location is Saitama, Japan, and his patent work includes an invention for decorating resin during injection molding.

Latest Patents

Hirata is credited with 1 patent: “Decorative Sheet, Process for Producing the Same, and Injection-Molded Article with Decorative Sheet.” The invention describes a decorative sheet made from two laminated resin sheets with at least one patterned layer between them. The sheets have a limited difference in linear expansion coefficient, helping the decorative sheet resist warping after three-dimensional processing, such as vacuum molding.

The design also aims to make the sheet easier to release from a forming mold and more stable when placed in an injection-molding mold. It is intended to prevent the sheet from falling away from the mold, injected resin from entering the gap between the sheet and the mold, and peeling between the sheet’s layers.

Career Highlights

Hirata’s listed patent reflects work on combining decorative finishing with resin molding. By addressing warping, mold release, and layer adhesion, the invention seeks to support reliable production of decorated injection-molded articles.

Collaborations

Hirata’s listed coworker is Kazuhiro Suga. Both are associated with the patent concerning the decorative sheet and its use in injection-molded articles.

Conclusion

Shinnosuke Hirata’s patent focuses on a laminated decorative sheet designed to remain stable through forming and injection molding, illustrating his contribution to manufacturing and materials innovation.