Company Filing History:
Years Active: 2006-2007
Title: Innovations of Katsumi Shimizu
Introduction
Katsumi Shimizu is a notable inventor based in Takatsuki, Japan. He has made significant contributions to the field of refrigeration technology, particularly through his work on Stirling engines and refrigerators. With a total of two patents to his name, Shimizu's innovations have the potential to enhance the efficiency and performance of refrigeration systems.
Latest Patents
Shimizu's latest patents include a Stirling engine that features stroke control technology. This innovation allows for the detection and control of the piston stroke to match a target stroke, preventing collisions with the displacer and enhancing the refrigerating performance of a Stirling refrigerator. The system stores different target strokes corresponding to various operational conditions, enabling a linear motor to be driven with a target stroke that suits the current operation. This advancement not only prevents collisions but also further improves the refrigerator's performance. Another patent focuses on a method for controlling the operation of a Stirling cycle refrigerator. This method ensures that when the refrigerator starts or stops, or based on detection results from position or temperature sensors, the voltage supplied to the driving power source is appropriately controlled. This prevents the piston from moving beyond its range, thereby avoiding potential breakage from collisions.
Career Highlights
Katsumi Shimizu is associated with Sharp Kabushiki Kaisha Corporation, where he continues to develop innovative technologies in refrigeration. His work has been instrumental in advancing the efficiency of Stirling cycle refrigerators, making them more reliable and effective for various applications.
Collaborations
Shimizu has collaborated with notable colleagues, including Naoki Nishi and Haruhiko Murakami. Their combined expertise has contributed to the successful development of Shimizu's innovative technologies.
Conclusion
Katsumi Shimizu's contributions to the field of refrigeration through his patents on Stirling engines and refrigerators demonstrate his commitment to innovation. His work not only enhances the performance of refrigeration systems but also showcases the potential for future advancements in this technology.