[Japan's First] 'BUZZ PRO LAB', a Precision Repair Research Garage Specialized in Drum-Type Washing Machines, Opens in Saitama

Convenience store BUZZ (Iruma City, Saitama Prefecture; Representative: Katsuhide Yamada) established 'BUZZ PRO LAB,' Japan's first dedicated research garage specializing in structural research and precision maintenance of drum-type washing machines, on May 20, 2026.

Due to rising prices, drum-type washing machines, which can often cost over 300,000 yen, are becoming common. However, because of their complex structure, many owners are forced to replace them once a failure or performance degradation occurs if they are out of the manufacturer's warranty.

To address the social issue of 'black-boxed high-end home appliances,' the laboratory integrates knowledge from its website—which boasts over 30,000 annual PVs—with physical structural analysis. Through the development of 'advanced maintenance menus (rebuilds)' that go beyond mere cleaning and the training of next-generation technicians, the lab advocates for sustainable home appliance usage.

Background of 'BUZZ PRO LAB' and the 3 Social Issues It Solves:

1. Transforming 'Unfixable' Appliances into 'Assets': The True Purpose of the Garage
Currently, mechanical issues that cannot be solved by superficial cleaning determine the lifespan of many drum-type washing machines. By performing 'complete disassembly' and 'long-term operational tests' in a lab environment—which are impossible in limited on-site visit times—the lab identifies the root causes of issues previously deemed unfixable, such as strange noises, drying failure, and frequent errors. It has established 'rebuild (regeneration maintenance)' that unlocks 100% of the machine's potential.

2. Reverse Engineering the 'Design Philosophies' of the Four Major Manufacturers
This laboratory acts as a research center to unravel the design quirks and weaknesses of the four major Japanese manufacturers: Panasonic, Toshiba, Hitachi, and Sharp. By identifying structural weaknesses, it detects signs of failure in advance and performs preventive maintenance that minimizes parts replacement. It also achieves unique maintenance in areas previously handled only by manufacturer replacements, such as sensors, heat pumps, and drive systems.

3. Preventing Technical 'Isolation': Technician Training through BUZZ ACADEMY
To turn advanced repair technology into a shared social asset, the lab operates a technical guidance school. By training 'true engineers' capable of handling the latest black-boxed home appliances, it aims to lift the standard of the nationwide repair and maintenance network.

Representative Profile: Katsuhide Yamada. He spent over 15 years in maintenance for industrial machinery and electrical equipment at major automotive parts manufacturers before going independent in 2021 and establishing 'Convenience store BUZZ' in Iruma City.