Shigeo Matsumaru

Title: **The Innovative Achievements of Shigeo Matsumaru**

Introduction

Shigeo Matsumaru, a notable inventor based in Saitama, Japan, has made significant contributions to the field of polymer chemistry with his innovative inventions. With a portfolio of seven patents, Matsumaru's work primarily focuses on methacrylic resin compositions, especially related to their applications in injection molding. His groundbreaking advancements have paved the way for improved manufacturing processes in various industries.

Latest Patents

One of Matsumaru's latest patents is for a methacrylic resin composition and method for production thereof. This composition is designed to provide an outstandingly easy release from the mold of an injection molding machine, preventing contamination of the stamper and the peripheral ring of the stamper holder. This innovation is particularly suitable for replicating laser disks. Notably, the methacrylic resin composition incorporates three lubricant components within a methyl methacrylate copolymer: a higher alcohol (x), a monoglyceride of a higher fatty acid (y), and a paraffin (z). Each component is precisely measured, with the proportions of (x) and (y) ranging from 0.05 to 0.2% by weight, and (z) ranging from 0.02 to 0.15% by weight, while the total content of these components remains between 0.2 to 0.35% by weight.

Career Highlights

Throughout his career, Shigeo Matsumaru has worked with prominent companies such as Kuraray Co., Ltd. and Kyowa Gas Chemical Industry Company, Ltd., where he further honed his skills and knowledge in chemical engineering and materials science. His role in these companies has allowed him to contribute extensively to innovative research and development in resin compositions, cementing his reputation as a leading inventor in the field.

Collaborations

Matsumaru has had the opportunity to collaborate with several esteemed colleagues, including Akihiro Mochizuki and Syuzi Isoi. These partnerships have not only enriched his professional journey but have also resulted in the advancement of shared inventions and research endeavors.

Conclusion

In summary, Shigeo Matsumaru's inventions and patented technologies reflect his dedication to innovation and improvement in polymer applications. His contributions have been significant in enhancing the efficiency and effectiveness of production processes in industries that utilize methacrylic resins. As he continues to push the boundaries of materials science, Matsumaru remains an influential figure among inventors in Japan and beyond.