Shinpei Yamamoto

Title: Innovations by Inventor Shinpei Yamamoto

Introduction

Shinpei Yamamoto is a prominent inventor based in Otsu, Japan. He has made significant contributions to the field of radiation curable resins, holding two patents that showcase his innovative approach to materials science.

Latest Patents

Yamamoto's latest patents focus on radiation curable resin technologies. His first patent describes a radiation curable resin with at least two (meth)acryloyl groups at both terminal ends of a molecular chain. This resin is created through a reaction involving a polyester polyol and/or polycarbonate polyol, a diisocyanate, and a polyfunctional (meth)acrylate containing a hydroxyl group, with the option to include a compound with at least two active hydrogens. The resin boasts a molecular weight ranging from 1,000 to 50,000, ensuring a urethane bonding concentration of no more than 3,000 equivalent/10^6 g, and a concentration of (meth)acryloyl groups between 100 to 6,000 equivalent/10^6 g. The patent also includes a composition containing this resin and a precoated metal utilizing it.

His second patent outlines a polyurethane acrylate radiation curable resin, which features (meth)acryloyloxy groups in both the terminal end and throughout the molecular chain. This resin, enriched with metal sulfonate groups at a concentration of 3.0 to 1,500 equivalent/10^6 g, is achieved by the reaction of various components, further advancing the applications of radiation curable resins.

Career Highlights

Shinpei Yamamoto has held significant roles at notable companies, including Toyo Boseki Kabushiki Kaisha and Sony Corporation. His expertise and innovative thinking have been instrumental in pushing the boundaries of material engineering within these organizations.

Collaborations

Throughout his career, Yamamoto has collaborated with esteemed colleagues, including Hideyuki Ohashi and Nobukazu Kotera. These partnerships have further propelled his inventions and have likely fostered advancements in their shared projects.

Conclusion

Shinpei Yamamoto is an influential inventor whose work in radiation curable resins demonstrates a commitment to innovation and excellence. With his two patents, he continues to inspire advancements in material science, showcasing the importance of collaborative effort and creative solutions in the field.