Katuyoshi Kumazawa

Title: Innovations by Katuyoshi Kumazawa

Introduction

Katuyoshi Kumazawa is a notable inventor based in Yamato, Japan. He has made significant contributions to the field of air-conditioning technology, holding 2 patents that showcase his innovative approach to heating and cooling systems.

Latest Patents

Kumazawa's latest patents include an air-conditioning apparatus that forms a refrigerating cycle with a refrigerant heater and a compressor having two cylinders. This apparatus is designed to simultaneously carry out a refrigerant heating operation and a heat pump operation when a high heating capacity is required. When the heating capacity is low, it operates solely as a heat pump. This innovative technique helps reduce the size of the apparatus while expanding the variable width of heating capacity. Additionally, the apparatus features a defrosting unit that defrosts an outdoor heat exchanger during heat pump operation.

Another significant patent is a multi-type air heating apparatus that utilizes phase variation of heating. This system includes an outdoor unit with a combustion unit that presents combustion heat, a heating medium heating part, and a heating medium transferring part. A plurality of indoor units are equipped with indoor heat exchangers and a required heating capacity detecting part. This detecting part assesses the required heating capacity based on the difference between the preset room temperature and the detected room temperature. The controller manages the combustion quantity and heating medium distribution, ensuring efficient operation across multiple indoor units.

Career Highlights

Kumazawa is associated with Kabushiki Kaisha Toshiba, where he has contributed to the development of advanced heating and cooling technologies. His work has been instrumental in enhancing the efficiency and functionality of air-conditioning systems.

Collaborations

He has collaborated with notable coworkers, including Kazuo Saito and Tetsuo Sano, who have also contributed to the advancements in the field of air-conditioning technology.

Conclusion

Katuyoshi Kumazawa's innovative patents and contributions to air-conditioning technology reflect his commitment to improving heating and cooling systems. His work continues to influence the industry and enhance user comfort.