Company Filing History:
Years Active: 2001-2002
Title: Yoshiaki Harakawa: Innovator in Electric Compressor Technology
Introduction
Yoshiaki Harakawa is a notable inventor based in Handa, Japan. He has made significant contributions to the field of electric compressor technology, holding a total of 2 patents. His innovative designs focus on improving the efficiency and functionality of sealed-type electric compressors.
Latest Patents
Harakawa's latest patents include advancements in refrigerant passage design within electric compressors. One of his patents describes a sealed-type electric compressor that features a refrigerant passage within a main shaft. This design includes an axial refrigerant passage that extends parallel to the main shaft and a radial refrigerant passage that communicates with it. This configuration allows for uniform spraying of suctioned refrigerant toward the entire coil, effectively cooling the electric motor during operation. Another patent outlines a similar sealed-type electric compressor, which incorporates both upper and lower refrigerant passages. The upper passage is strategically positioned above a datum line, ensuring that even if the lower passage is blocked by lubricating oil, the refrigerant can still flow through the upper passage. This design minimizes pressure loss and prevents lubricating oil from contaminating the refrigerant.
Career Highlights
Yoshiaki Harakawa is currently employed at Denso Corporation, a leading company in automotive technology. His work at Denso has allowed him to focus on innovative solutions that enhance the performance of electric compressors. His contributions have been instrumental in advancing the technology used in modern refrigeration systems.
Collaborations
Harakawa has collaborated with several talented individuals in his field, including Masami Sanuki and Yuichi Tsumagari. These collaborations have fostered a creative environment that encourages the development of cutting-edge technologies.
Conclusion
Yoshiaki Harakawa's work in electric compressor technology exemplifies innovation and dedication to improving efficiency in refrigeration systems. His patents reflect a deep understanding of mechanical design and functionality, making him a valuable contributor to the industry.