Tochigi Factory: Where the "Made in Japan" Standard of Hitachi Refrigerators Takes Shape

Not all standards are visible at first glance. For Hitachi Made in Japan refrigerators, true value begins in a place few consumers ever see: the Tochigi Factory in Japan.

Behind the scenes, the Tochigi Factory has quietly shaped the stringent standards that define Hitachi refrigerators made in Japan. As a result, every refrigerator that reaches a home delivers more than functionality alone. It carries with it a legacy of craftsmanship, reliability, and trust that stands the test of time.

Hitachi GLS Tochigi Office located in Ohira-cho, Tochigi city

A Long-Established Manufacturing Hub for Hitachi Made in Japan Refrigerators with an Integrated R&D Model

For 80 years, the Tochigi Factory has played an important role in the development and production of Hitachi's premium Made in Japan refrigerators, where advanced technology and craftsmanship come together to uphold Hitachi's commitment to quality and reliability.

By bringing research and development (R&D) and production together at one site, the Tochigi Factory enables close collaboration between development and manufacturing teams. This integrated approach allows Hitachi to continuously refine its technologies, enhance product quality, and improve the overall user experience.

Through continuous innovation and embracing new challenges, Hitachi is proud to deliver ultimate convenience to every customer.

Guided by Hitachi's long-standing philosophy of quality, reliability, and innovation, the Tochigi Factory continues to pursue excellence in refrigerator development and manufacturing.

Signature Technologies Behind Hitachi Made in Japan Refrigerators from Tochigi

Leveraging decades of research and development at the Tochigi Factory, Hitachi has introduced a range of proprietary technologies designed to help mainatain food freshness and support nutrient retention. The features described below are representative technologies available across selected Hitachi Made in Japan refrigerator models and may vary by model.

1. Vacuum Compartment Maintains the freshness, flavor, and nutrients of food without freezing by creating a low-oxygen environment at approximately -1°C and 0.8 atm. Platinum and Ruthenium catalysts further help reduce oxidation.
2. Delicious Freezing: Retains the natural texture and taste of food by minimizing cell damage and reducing moisture loss. An aluminum tray and a dedicated temperature sensor automatically activate quick freezing when needed to freeze food rapidly.
3. Aero-care Vegetable Compartment: Preserves the freshness and nutritional value of fruits and vegetables by reducing ethylene gas and maintaining optimal humidity.
4. Whole Chill Compartment: Keeps prepared ingredients and cooked foods fresh by maintaining a consistent 2°C cooling environment across all shelves in the refrigerator compartment.
5. Vacuum Insulation Panel (VIP): Improves insulation performance and supports energy efficiency while enabling thinner refrigerator walls and greater usable storage space. Advanced insulation materials with extremely low thermal conductivity help reduce cold air loss.

Together, these technologies reflect Hitachi's commitment to combining advanced engineering with everyday convenience, enhancing both food preservation performance and the overall user experience in its Made in Japan refrigerators.

Tochigi Factory - The Foundation of Quality and Reliability

At the Tochigi Factory, the combination of advanced manufacturing technology, rigorous quality control processes, and technical expertise accumulated over generations has helped shape Hitachi Made in Japan refrigerators known for consistent quality, high reliability, and long-lasting performance.

These core values continue to be reflected in every Hitachi Made in Japan refrigerator today. Discover the range here.