Company Filing History:
Years Active: 1982-1985
Title: Sampei Usui: Innovator in Refrigeration Technology
Introduction
Sampei Usui is a notable inventor based in Ibaraki, Japan. He has made significant contributions to the field of refrigeration technology, holding a total of 2 patents. His innovative designs focus on improving efficiency and functionality in cooling systems.
Latest Patents
One of Usui's latest patents is the "Multi-stage absorption refrigeration system." This invention features a triple-stage absorption refrigeration system that includes three generators. The solution is supplied from the absorber directly to each of the three generators in parallel, without flowing through any other generator. This design allows the cooling medium to flow first through the condenser and then through the absorber. As a result, the corrosion of the walls of the first generator, which experiences the highest temperature, can be inhibited.
Another significant patent is the "Capability control apparatus for cooling system having direct expansion." This apparatus includes a control valve mounted in a heating system for a generator, which regulates the amount of heat supplied to the generator. Temperature sensors are strategically placed at the inlet and outlet sides of the cooling system for the absorber. An arithmetic unit, connected to the temperature sensors and the control valve, calculates the necessary heat amount based on signals from the sensors. It then transmits a control signal to the control valve to manage the heating process effectively.
Career Highlights
Sampei Usui is associated with Hitachi, Ltd., a leading company in technology and innovation. His work at Hitachi has allowed him to develop and refine his inventions, contributing to advancements in refrigeration systems.
Collaborations
Usui has collaborated with notable coworkers, including Tomihisa Oouchi and Tamio Fukuda. Their combined expertise has fostered a creative environment that encourages innovation and problem-solving in their projects.
Conclusion
Sampei Usui's contributions to refrigeration technology exemplify the impact of innovative thinking in engineering. His patents reflect a commitment to enhancing efficiency and functionality in cooling systems. Through his work at Hitachi, Usui continues to influence the field and inspire future innovations.