Keizou Shimizu

Title: Keizou Shimizu: Innovator in Injection Molding Technology

Introduction

Keizou Shimizu is a notable inventor based in Nagano, Japan. He has made significant contributions to the field of injection molding technology, holding 2 patents that showcase his innovative spirit and technical expertise.

Latest Patents

One of his latest inventions is the "Electric motor driven toggle mold clamping device." The purpose of this invention is to prevent the sticking of lubricant to a ball screw shaft and scattering to the surrounding area in an electromotive toggle mold clamping device. This device features a ball nut member that is screwed together with the ball screw shaft, which rotates via an electric motor to allow for free advancement and retreat. A cross head is fixed to the ball nut member, and a cylindrical or polygonal cylindrical member is attached to the front ends of the cross head, ensuring that the ball screw shaft is placed with a required gap while retreating the cross head.

Another significant patent is the "Pressure detection apparatus of injection molding machine." This apparatus consists of a drive mechanism and a movable member, including a pressure reception member that is movable in the reciprocating direction of the movable member. A load cell is strategically placed between the drive mechanism and the movable member to receive stress directed in a rotation direction, thereby preventing the imposition of stress on the load cell.

Career Highlights

Keizou Shimizu is currently employed at Nissei Plastic Industrial Co., Ltd., where he continues to develop innovative solutions in the field of plastic manufacturing. His work has significantly impacted the efficiency and effectiveness of injection molding processes.

Collaborations

Throughout his career, Shimizu has collaborated with talented individuals such as Hiroshi Yamaura and Fumio Shiozawa. These collaborations have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.

Conclusion

Keizou Shimizu is a distinguished inventor whose contributions to injection molding technology have advanced the industry. His patents reflect a commitment to innovation and problem-solving, making him a valuable asset in the field of manufacturing.