Company Filing History:
7 out of 19,748 
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2 out of 1,600 
Years Active: 1990-2007
Title: Innovations of Kazuhito Miyagawa: A Pioneer in Compressor Technology
Introduction
Kazuhito Miyagawa, an accomplished inventor based in Kariya, Japan, holds an impressive portfolio of 11 patents. His innovations primarily focus on advancing compressor technology, particularly for vehicle air conditioning systems.
Latest Patents
Among his latest inventions is a **Variable Displacement Compressor**, designed to enhance the cooling and lubrication efficiency of seals positioned on a rotary shaft. This innovative compressor features two lubrication chambers around the front and rear ends of the rotary shaft. A shaft passage connects these chambers, allowing refrigerant gas mixed with lubricating oil to flow from the crank chamber to the suction chamber. This design notably improves the cooling and lubrication of the seals.
Another significant patent is for a **Compressor with Integral Control Unit**, which incorporates a pressure sensor and a torque computing unit. This unit computes the compressor torque and features a communication unit for data exchange based on vehicle data communication protocols. The integration of these components allows for quick torque calculation, enabling efficient control of the engine's output to optimize compressor performance.
Career Highlights
Kazuhito Miyagawa has worked with esteemed companies such as Denso Corporation and Nippondenso Co., Ltd., where he applied his expertise in HVAC systems. His contributions in these companies have played a vital role in enhancing automotive air conditioning technologies.
Collaborations
Throughout his career, Miyagawa has collaborated with notable colleagues, including Masahiro Kawaguchi and Yasutane Hijikata. Their teamwork has further propelled innovations in the field of compressor technology, leading to advancements that benefit the automotive industry.
Conclusion
Kazuhito Miyagawa's innovations are a testament to his expertise and commitment to enhancing vehicle air conditioning systems. His patents reflect a deep understanding of complex engineering principles, leading to efficient and effective solutions in compressor design. As technology evolves, the impact of his inventions will continue to resonate within the industry, showcasing the importance of creative thinking in engineering.