Shigeo Yoshizawa

Title: **Shigeo Yoshizawa: Innovator in Synthetic Resin Container Technology**

Introduction

Shigeo Yoshizawa is a notable inventor based in Nagano, Japan, recognized for his contributions in the field of synthetic resin container technology. Holding two patents, he has made significant advancements that enhance the functionality and usability of hollow containers.

Latest Patents

Yoshizawa's latest patents focus on innovative methods for molding synthetic-resin hollow containers equipped with grips. The first patent describes a method wherein a hollow container with a grip is formed through a process that includes injection molding the grip and annular rings onto a blow-molded container. This method uses a stretch blow-molded parison to create a hollow container body with annular grooves. In this process, a pressure higher than ambient pressure is applied, allowing the grip and connecting rings to be incorporated seamlessly.

The second patent emphasizes a synthetic resin bottle that combines an injection-molded parison with stretch blow molding, featuring a secondarily molded grip on its side. This advancement not only improves the design but also enhances the user experience by providing a functional grip for consumers.

Career Highlights

Yoshizawa is currently affiliated with Nissei ASB Machine Co., Ltd., a leading company in manufacturing equipment for the production of plastic containers. His work at the company reflects his commitment to innovate and his expertise in molding technology, sustaining Nissei's reputation for quality and innovation in the industry.

Collaborations

Throughout his career, Shigeo Yoshizawa has collaborated with talented co-inventors such as Yoshinori Nakamura and Yoshiki Miyazawa. These collaborations have facilitated the exchange of ideas and techniques, further propelling advancements in their field.

Conclusion

Shigeo Yoshizawa stands out as an influential figure in the realm of synthetic resin container technology. His innovative patents reflect a dedication to improving product functionality and user interaction. As he continues to work alongside his esteemed colleagues at Nissei ASB Machine Co., Ltd., his contributions are sure to have a lasting impact on the industry.