Gunzen Co., Ltd.
Deep-Tech IP Architecture for Ocean, Offshore and Subsea Infrastructure
Gunzen Co., Ltd. is a private deep-tech company based in Japan, developing advanced energy and marine engineering systems, including offshore platforms, offshore wind energy systems, subsea power infrastructure, and marine robotics, while building a patent portfolio around them.
MARINE PROTON
Subsea Power Infrastructure for Underwater Robot Fleets
We are developing a modular subsea power hub to supply underwater robots and equipment with electricity where they operate.
The Challenge: Underwater Robots Need Infrastructure
For extended underwater operations, robots need access to power without frequent returns to the surface.
Different vehicles require different voltages, power levels and connection interfaces. This makes it difficult to build shared infrastructure for an entire fleet.
Our goal is to create a modular power platform that supports underwater equipment from multiple manufacturers.
Our Principle: Work with the Environment, Harness Its Advantages
We design Marine Proton around ocean conditions from the outset.
We aim to use the surrounding seawater for heat dissipation. For operation under pressure, we are exploring solid-encapsulated power components to reduce reliance on heavy pressure housings.
We will evaluate this approach through prototype development and underwater testing.
MARINE PROTON
Subsea Power Infrastructure for Underwater Robot Fleets
We are developing a modular subsea power hub to supply underwater robots and equipment with electricity where they operate.
The Challenge: Underwater Robots Need Infrastructure
For extended underwater operations, robots need access to power without frequent returns to the surface.
Different vehicles require different voltages, power levels and connection interfaces. This makes it difficult to build shared infrastructure for an entire fleet.
Our goal is to create a modular power platform that supports underwater equipment from multiple manufacturers.
Our Principle: Work with the Environment, Harness Its Advantages
We design Marine Proton around ocean conditions from the outset.
We aim to use the surrounding seawater for heat dissipation. For operation under pressure, we are exploring solid-encapsulated power components to reduce reliance on heavy pressure housings.
We will evaluate this approach through prototype development and underwater testing.
Concept illustration. Features shown are design objectives and remain subject to testing. Energy sources represent alternative supply options.
What Is Marine Proton?
Marine Proton receives electricity from an external source—such as a shore connection, vessel or offshore energy installation—converts it and distributes it to multiple loads.
Individual power modules are intended to supply underwater robot charging systems, sensors and other equipment. The modular architecture is designed to accommodate different loads, expand capacity and allow individual modules to be replaced.
Industrial Development Target
Our First Prototype: MP-8
We plan to build and test MP-8, an 8 kW technology demonstrator comprising three power modules rated at 1, 2 and 5 kW.
Its purpose is to evaluate power conversion and distribution, module operation, electrical protection and thermal performance. Deepwater pressure tolerance will require a separate testing programme.
Development Roadmap
We are currently refining technical specifications and preparing to build MP-8. We have developed the modular system concept and filed a patent application covering a technical solution for subsea power equipment.
We are currently looking for technical feedback, pilot partners and connections with Japanese industry.
We welcome discussions with Japanese companies working in underwater robotics, marine equipment and electrical power systems, as well as research institutions and testing organizations.
Gunzen Co., Ltd. · Japan
Marine Proton receives electricity from an external source—such as a shore connection, vessel or offshore energy installation—converts it and distributes it to multiple loads.
Individual power modules are intended to supply underwater robot charging systems, sensors and other equipment. The modular architecture is designed to accommodate different loads, expand capacity and allow individual modules to be replaced.
Industrial Development Target
- Operating depth: up to 6,000 metres.
- Total hub output power: up to 500 kW.
- Application: power infrastructure supporting fleets of underwater robots.
Our First Prototype: MP-8
We plan to build and test MP-8, an 8 kW technology demonstrator comprising three power modules rated at 1, 2 and 5 kW.
Its purpose is to evaluate power conversion and distribution, module operation, electrical protection and thermal performance. Deepwater pressure tolerance will require a separate testing programme.
Development Roadmap
- Define requirements. Select the first application and refine technical specifications with potential users.
- Build and test MP-8. Evaluate core electrical and thermal performance on the test bench.
- Conduct water and pressure testing. Assess insulation, cooling and component operation.
- Develop a pilot with an industry partner. Integrate equipment for a specific application and evaluate performance under real operating conditions.
- Scale the system. Increase power capacity and operating depth as the technology is validated and market requirements become clearer.
We are currently refining technical specifications and preparing to build MP-8. We have developed the modular system concept and filed a patent application covering a technical solution for subsea power equipment.
We are currently looking for technical feedback, pilot partners and connections with Japanese industry.
We welcome discussions with Japanese companies working in underwater robotics, marine equipment and electrical power systems, as well as research institutions and testing organizations.
Gunzen Co., Ltd. · Japan
Discuss the Project
