Hydrogen Refrigeration

Power-free, reusable cooling by safely controlling hydrogen’s phase-change.

SOHWA’s Hydrogen Cooling initiative—engineered with Izumo Electric Industry—delivers instant, repeatable cooling without external electricity, compressors, or conventional refrigerants. Using a fully sealed hydrogen loop, our modules provide localized, on-demand thermal control where conventional cooling is impractical.

Company Overview

Business & Co‑creation Partner

SOHWA Co., Ltd. leads customer engagement, applications, and partner collaboration for the Hydrogen Cooling program. We translate advanced R&D into practical solutions and coordinate pilots with universities, laboratories, and industrial partners.


Core Technology Developer

Izumo Electric Industry (founded 1957) contributes decades of expertise in electronic control, vacuum sealing, and thermal design. Together, we engineered the Hydrogen Phase‑Change Cooling System, stress‑tested in demanding scenarios such as F1 pit cooling trials.

Why It Matters

Power‑free Cooling — Instant, repeatable cooling without compressors, refrigerants, or external electricity.

Safe & Reusable — Hydrogen is sealed and recirculated within the unit; no operational CO₂ emissions.

Proven & Versatile — Concepts validated in F1; applicable to quantum/space labs, medical, disaster‑response, and energy clusters.

Compact Modules — Localized thermal control in tight spaces; retrofit‑friendly to existing systems.

Core Technologies

Refined through years of dedicated research and engineering.

  • Hydrogen Phase‑Change Cooling — Precisely controls vaporization heat to deliver ultra‑fast, on‑demand cooling with no external power or refrigerants.
  • Safe Hydrogen Circulation — Fully sealed loop with engineered leak‑prevention and thermal management for confined environments.
  • Precision Thermal Control — Design DNA from vacuum/electronic/thermal systems enables stable operation across extreme environments.
  • Modular Integration — Compact modules adaptable to quantum labs, medical devices, energy hubs, and mobility systems.
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Featured Product Examples

  • HYCOOL-Lab Module — For quantum & space research: precise stabilization without external power; compatible with vacuum/micro-gravity scenarios.
  • Medical Cooling Unit — Portable, power-free cooling for organs, samples, and medicines during emergency care and transport.
  • Disaster-Resilient Cooling Device — Protects control panels, batteries, and communication systems during power outages; last-line cooling for safety.
  • Mobility & Energy-Cluster System — Prevents overheating in EVs, hydrogen stations, and data/energy hubs, extending component life in confined, high-heat spaces.

Company Locations

For the Hydrogen Cooling program, please reference the following business and collaboration offices.

(Legacy manufacturing facilities listed for reference)

  • Factory & Warehouse
    2‑19‑26 Koenji‑Minami, Suginami‑ku, Tokyo 166‑0003, Japan
  • Yokosuka Factory (Sewing)
    Ooyabe, Yokosuka‑shi, Kanagawa 238‑0024, Japan

Note: On this page, avoid textile descriptions; the focus is Hydrogen Refrigeration.

Common Questions

Q1. How is this different from conventional cooling?
A. It provides instant cooling without external power or refrigerants. The sealed hydrogen is recirculated, enabling repeatable use.


Q2. Does it help the environment?
A. Yes—no CO₂ is emitted during operation, and no conventional refrigerants or compressors are used.


Q3. Is it safe to use hydrogen?
A. Yes. Hydrogen remains within a closed, engineered loop with sensors and safety mechanisms designed for confined spaces.


Q4. When will this technology be available?
A. We are running joint tests with universities and industrial partners and are working toward market introduction.

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