Location History:
- Tokyo, JP (2003)
- Takasago, JP (2002 - 2006)
Company Filing History:
Years Active: 2002-2006
Title: Koji Hirokawa: Innovator in Refrigeration Technology
Introduction
Koji Hirokawa is a notable inventor based in Takasago, Japan. He has made significant contributions to the field of refrigeration technology, holding a total of 4 patents. His innovative designs focus on improving the efficiency and effectiveness of refrigerating machines.
Latest Patents
Hirokawa's latest patents include a condenser for refrigerating machines and an advanced evaporator. The condenser invention enhances condensation characteristics by preventing the accumulation of condensed refrigerant within the condenser vessel. It features a vessel and a group of heat exchanger tubes that facilitate the condensation and liquefaction of gaseous refrigerant through heat exchange with circulating cooling water. The design allows for the removal of accumulated liquefied refrigerant by creating spaces in the area where the heat exchanger tubes are located.
The evaporator is designed with bundles of heat exchanger tubes that flow cold water inside a container for admitting the cooling medium. The innovative structure ensures that the total cross-sectional area of the heat exchanger tubes in downstream locations is less than that in upstream locations. This design results in increased flow speeds of cold water in downstream tubes, thereby enhancing heat transfer rates even with minimal temperature differentials.
Career Highlights
Koji Hirokawa is currently employed at Mitsubishi Heavy Industries Limited, where he continues to develop cutting-edge technologies in refrigeration. His work has significantly impacted the efficiency of refrigerating systems, making them more effective in various applications.
Collaborations
Hirokawa has collaborated with notable colleagues, including Yoichiro Iritani and Akihiro Kawada. Their combined expertise has contributed to the advancement of refrigeration technologies.
Conclusion
Koji Hirokawa's innovative contributions to refrigeration technology demonstrate his commitment to enhancing efficiency in this critical field. His patents reflect a deep understanding of the principles of heat exchange and fluid dynamics, positioning him as a key figure in the industry.