Tokuyoshi Nakajima

Title: Tokuyoshi Nakajima: Innovator in Injection Molding Technology

Introduction

Tokuyoshi Nakajima is a notable inventor based in Nagano, Japan. He has made significant contributions to the field of injection molding technology. With a total of 2 patents to his name, Nakajima has developed innovative solutions that enhance the efficiency and functionality of molding processes.

Latest Patents

One of Nakajima's latest patents is an injection mold used to mold a preform with a hanger. This invention provides a preform designed to mold a container equipped with a hanger. The preform features a cylindrical bottomed barrel portion and a flat plate-like hanger with a central opening. A connection is formed on the bottom wall of the barrel portion, linking the hanger and the bottom of the barrel. During the injection molding process, molten plastic material is introduced into the mold cavity through a gate at the end of the hanger. The material is then divided into two branch streams at the hanger molding cavity region, which recombine at the connection. This connection, having a circular cross-section, serves as a gate that allows the molten plastic to flow into the barrel molding cavity.

Another patent by Nakajima is a preform with a hanger that has a connecting portion of a substantially similar design. This preform also includes a cylindrical bottomed barrel portion and a flat plate-like hanger. The connection is strategically placed to facilitate the injection molding process, ensuring that the molten plastic material flows efficiently into the barrel molding cavity.

Career Highlights

Tokuyoshi Nakajima is associated with Nissei Asb Machine Co., Ltd., a company known for its expertise in injection molding machinery. His work at this company has allowed him to focus on developing innovative molding solutions that meet industry demands.

Collaborations

One of Nakajima's notable collaborators is Shinichi Uehara. Their partnership has contributed to advancements in injection molding technology, further enhancing the capabilities of their inventions.

Conclusion

Tokuyoshi Nakajima is a prominent inventor whose work in injection molding technology has led to significant advancements in the field. His innovative patents demonstrate his commitment to improving manufacturing processes and product design.