Company Filing History:
2 out of 12 
2 out of 3,557 Years Active: 1977
Title: Koithiro Nakagawa: Innovator in Air Dehydration Technology
Introduction
Koithiro Nakagawa is a notable inventor based in Oita, Japan. He has made significant contributions to the field of air dehydration technology, particularly in applications related to blast furnaces. With a total of 2 patents, Nakagawa's work focuses on improving the efficiency and effectiveness of air preparation systems.
Latest Patents
Nakagawa's latest patents include innovative arrangements for preparing hot compressed air with reduced moisture content. One of his patents describes an arrangement for preparing dry hot compressed air to be supplied to a blast furnace. This system incorporates a heat exchanger and a dehydrator assembly that features a gas-permeable regenerative moisture-absorbing rotor. The design ensures that hot compressed air from the blower is utilized to heat the dehydrated air and regenerate the rotor. Additionally, air leakage between the regenerating and dehydrating zones is prevented by sealing clearances with packing elements, allowing for the external introduction of dry pressurized air.
Another significant patent is an assembly for dehydrating air intended for blast furnace use. This assembly employs at least one gas-permeable rotor containing a regenerative moisture absorbent. It utilizes hot combustion gas from burning waste gas to regenerate the absorbent, while also incorporating means to regulate the relative humidity of the moist air being dehydrated. This innovative approach eliminates the need for an external heat source, thus preventing deliquescence of the absorbent.
Career Highlights
Throughout his career, Nakagawa has worked with prominent companies such as Takasago Thermal Engineering Co., Ltd. and Nippon Steel Corporation. His experience in these organizations has allowed him to develop and refine his innovative technologies in air preparation systems.
Collaborations
Some of Nakagawa's notable coworkers include Toru Yoshida and Kameo Hosoi. Their collaborative efforts have contributed to advancements in the field of air dehydration technology.
Conclusion
Koithiro Nakagawa's contributions to air dehydration technology have made a significant impact on the efficiency of blast furnace operations. His innovative patents reflect a deep understanding of the challenges in this field and offer practical solutions to enhance performance.