Location History:
- Hanishina-gun, JP (1999)
- Nagano-ken, JP (2003)
- Nagano, JP (2003)
Company Filing History:
Years Active: 1999-2003
Title: Innovations by Hisato Shimizu in Injection Molding Technology
Introduction: Hisato Shimizu, an accomplished inventor based in Nagano-ken, Japan, has made significant contributions to the field of injection molding. With a remarkable portfolio of three patents, he has developed innovative methods that enhance the precision and efficiency of the injection molding process.
Latest Patents: Hisato Shimizu's latest patents showcase his expertise in controlling processes within injection molding machines. One of his notable patents introduces a new weighing method in prepla type injection molding machines. This method prevents unstable weighing due to plunger sliding resistance by implementing a dual control system for plunger retraction movements, ensuring accurate material measurement. Another innovative patent outlines a method for controlling injection molding machines that optimizes the screw advancements during the molding process. By transitioning from velocity control to pressure control at a designated point, he successfully maintains a constant total charged amount of resin, independent of the charging pressure and temperature variables.
Career Highlights: Currently, Hisato Shimizu is associated with Nissei Plastic Industrial Co., Ltd., a well-respected company known for its advancements in plastic injection technology. His work at Nissei emphasizes practical applications of his patents, significantly enhancing product quality and consistency in manufacturing processes.
Collaborations: Throughout his career, Hisato has collaborated with talented colleagues, including Kiyoto Takizawa and Takayoshi Shioiri. Their collective expertise and collaboration have fostered an environment of innovation and problem-solving, leading to remarkable advancements in the industry.
Conclusion: Hisato Shimizu's dedication to improving injection molding technology through his inventive spirit is evident in his patents and collaborations. His contributions not only benefit his company but also the broader manufacturing community, setting a standard for future innovations in the industry.