Location History:
- Sakai, JP (2019)
- Osaka, JP (2024)
Company Filing History:
Years Active: 2019-2024
Title: Ryuhei Kaji: Innovator in Refrigeration Technology
Introduction
Ryuhei Kaji is a prominent inventor based in Sakai, Japan. He has made significant contributions to the field of refrigeration technology, holding a total of 5 patents. His innovative designs focus on improving the efficiency and functionality of refrigeration systems.
Latest Patents
One of Kaji's latest patents is a refrigeration apparatus that includes a compressor, an outdoor heat exchanger, an indoor heat exchanger, and an expansion valve. In cooling operation, the refrigerant flows through these components in a specific order, ensuring optimal performance. In heating operation, the flow is reversed. Notably, the refrigerant used is an HFO (hydrofluoroolefin) refrigerant or a mixture that includes an HFO refrigerant. The heat exchangers are designed as cross-fin-type or stack-type, enhancing heat transfer efficiency.
Another significant patent is for a heat pump device utilizing a non-azeotropic mixture refrigerant. In this design, a gas-liquid two-phase non-azeotropic mixture refrigerant enters a receiver, where it separates into gas and liquid phases. The controller estimates the composition ratio of the refrigerants based on temperature and pressure, allowing for precise control of the refrigerant circuit.
Career Highlights
Ryuhei Kaji is currently employed at Daikin Industries, Ltd., a leading company in the HVAC industry. His work focuses on developing advanced refrigeration technologies that contribute to energy efficiency and environmental sustainability.
Collaborations
Kaji collaborates with talented coworkers, including Eiji Kumakura and Hiroki Ueda. Together, they work on innovative projects that push the boundaries of refrigeration technology.
Conclusion
Ryuhei Kaji's contributions to refrigeration technology through his patents and work at Daikin Industries, Ltd. highlight his role as a key innovator in the field. His advancements not only improve efficiency but also promote sustainable practices in the industry.