Introduction: Hironao Numoto, an accomplished inventor based in Shiga, Japan, has made significant contributions to the field of refrigeration technology. With a remarkable portfolio of 19 patents, Numoto continues to advance the industry with innovative solutions designed to improve efficiency and reliability in refrigeration systems.

Latest Patents: Among Hironao Numoto's recent inventions is an "Apparatus Having Refrigeration Cycle". This innovative design connects a compressor, condenser, expansion device, and evaporator in an annular configuration, utilizing propane, isobutane, or ethane as refrigerants. Notably, it incorporates refrigerating machine oil that has minimal solubility with the refrigerant, enhancing reliability by reducing refrigerant usage. Furthermore, a dryer is integrated into the refrigeration cycle to absorb moisture, or alternatively, an additive that reacts with water can be included in the oil to bolster performance.

Another pivotal patent is the "Method for Taking Custody of, Transporting and Installing Air Conditioner". This method ensures the safe custody, transport, and installation of air conditioning units equipped with flammable refrigerants. By shipping the outdoor unit while maintaining a vacuum in the refrigeration cycle, Numoto’s method enhances safety during transport and prevents deterioration in performance when the units are installed.

Career Highlights: Hironao Numoto is currently employed at Matsushita Electric Industrial Co., Ltd., a well-known name in the electronics and appliance industry. His extensive experience and innovative mindset have positioned him as a leading figure in the development of cutting-edge refrigeration technology.

Collaborations: Throughout his career, Numoto has worked closely with fellow innovators such as Akira Fujitaka and Yukio Watanabe. Together, they have fostered a collaborative environment that encourages creative problem-solving and technological advancement.

Conclusion: Hironao Numoto's contributions to refrigeration technology exemplify the importance of innovation in enhancing efficiency and safety in the industry. His patents not only reflect his ingenuity but also signify a commitment to improving product performance and sustainability. As he continues his work at Matsushita Electric Industrial Co., Ltd., the future of refrigeration holds great promise with Hironao Numoto at the forefront of innovation.

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