Company Filing History:
Years Active: 2007-2020
Title: Takahiro Ushijima: Innovator in Air-Conditioning Technology
Introduction
Takahiro Ushijima is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of air-conditioning technology, holding a total of nine patents. His innovative designs focus on enhancing the efficiency and functionality of heat pump systems.
Latest Patents
One of Ushijima's latest patents is a heat-pump air-conditioning hot-water supply device. This device features a first refrigerant passage connecting a compressor and a decompressor, along with a second refrigerant passage that branches from between the compressor and a first solenoid valve. It includes a hot-water supply heat exchanger and a pressure sensor that measures the discharge pressure of the compressor. The control device adjusts the operational frequency of the compressor and the opening degree of the decompressor valve based on the calculated condensing temperature. This allows for operation in either an air conditioning prioritized mode or an energy-saving prioritized mode.
Another notable patent is an air-conditioning system that utilizes control of the number of compressors based on predetermined frequency ranges. This low-cost and highly efficient system includes a plurality of outdoor units and an air handling unit. It is designed to reduce the on/off cycle operation of compressors during low load conditions. The system features independent heat pump cycles and a number control unit that manages the operation of compressors to meet the air-conditioning load efficiently.
Career Highlights
Ushijima has worked with leading companies in the industry, including Mitsubishi Electric Corporation and TDK Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in air-conditioning technology.
Collaborations
Throughout his career, Ushijima has collaborated with notable colleagues such as Kazuki Okada and Takako Hibi. These partnerships have contributed to the advancement of his projects and the successful implementation of his inventions.
Conclusion
Takahiro Ushijima is a key figure in the development of advanced air-conditioning technologies. His patents reflect a commitment to innovation and efficiency in the field. His work continues to influence the industry and improve energy-saving solutions for air-conditioning systems.