Company Filing History:
29 out of 15,928 
1 out of 21,351 
Years Active: 2009-2025
Title: Kazunori Sakanobe: Innovator in Refrigeration and Motor Technology
Introduction
Kazunori Sakanobe, based in Tokyo, Japan, is a prominent inventor with an impressive portfolio of 29 patents. His innovative contributions primarily focus on refrigeration and air-conditioning systems, as well as failure diagnosis methods for motor technologies.
Latest Patents
Sakanobe's latest patents showcase his expertise and creativity within the field. One of his notable inventions is a refrigerating and air-conditioning apparatus, designed to efficiently perform defrosting operations. This apparatus integrates a refrigerant circuit consisting of a compressor, heat exchangers, an expansion device, and a four-way valve, which facilitates the circulation of refrigerant. Additionally, it includes a temperature sensor to monitor the compressor’s temperature, along with a heat generation control unit that adjusts the compressor's temperature to optimize defrosting performance.
In another significant achievement, he developed a failure diagnosis apparatus, training apparatus, training method, and failure diagnosis system. This innovative system employs a controller to manage motor drive, along with a wear estimator that evaluates the wear on motor bearings by analyzing the current flow. The apparatus is capable of diagnosing motor failures based on the wear measurements and notifying users, thus enhancing operational efficiency and safety.
Career Highlights
Kazunori Sakanobe has significantly contributed to the engineering sectors during his career. He notably worked with Mitsubishi Electric Corporation and Mitsubishi Denki Kabushiki Kaisha, where he developed many of his groundbreaking inventions. His background at these esteemed companies underscores his dedication to advancing technology in refrigeration and electrical systems.
Collaborations
Throughout his career, Sakanobe has collaborated with talented professionals, including Hiroki Aso and Mineo Yamamoto. These partnerships have enabled him to enhance his research and development efforts, leading to successful innovations in his field.
Conclusion
Kazunori Sakanobe stands out as an influential inventor whose work continues to impact the refrigeration and motor technology industries. With 29 patents and ongoing contributions, Sakanobe's dedication to innovation not only highlights his capabilities as an inventor but also enriches the technological landscape in Japan and beyond.