Panasonic Corporation, in collaboration with the National Institute of Advanced Industrial Science and Technology (AIST), showcased advancements in hydrogen measurement technology at the IMEKO 2024 XXIV World Congress in Germany. The focus was on precise gas measurement in hydrogen fuel cell systems, crucial for enhancing energy efficiency and reducing costs. By optimizing hydrogen injection and nitrogen purge timings, the technology developed by Panasonic enables high-precision measurement of gas flow and concentration within fuel cell systems. The joint presentation highlighted the achievement of accurate measurements, even in complex flow channel structures. This technology has been incorporated into ultrasonic flow and concentration meters for hydrogen, with applications extending beyond fuel cell systems to natural gas metering and hydrogen quality control. The innovation aims to support the global shift towards carbon neutrality and renewable energy use, emphasizing Panasonic's commitment to decarbonization and sustainable practices.