Exhibiting at "Techno-Ocean 2025" (November 27-29)

We will continue to contribute to the sustainable development of society through various activities to understand the ocean and the Earth.

At our company, we utilize the technologies gained through various marine research vessels and land-based research facilities to assist your research in marine surveys, sample collection, chemical analysis and measurements, and equipment design and manufacturing. We conduct various measurements and chemical analyses tailored to your needs, offering proposals for "manufacturing" from a user perspective. Additionally, we have a proven track record in stable isotope ratio analysis of lead, strontium, neodymium, lithium, and boron. 【Marine Work Japan Services】 ■ Isotope Analysis ■ Manufacturing ■ Sample Measurement and Analysis ■ Marine Surveys and Observations *For more details, please download the PDF or feel free to contact us.

• Other contract services

Continuous underwater shooting and mapping through autonomous navigation! Safe and efficient investigation of rocky shore degradation, seagrass beds, and topography.

The autonomous unmanned boat "ASV" navigates autonomously using GNSS (Global Navigation Satellite System) and is a water vehicle that collects various data. Equipped with underwater cameras and side-scan sonars, it can obtain images and weather data, as well as conduct seabed topography surveys. Additionally, remote operation and real-time data communication are possible through LTE connectivity, allowing navigation in Japan's coastal areas. 【Features】 ■ Autonomous navigation through survey line settings ■ Remote operation using mobile phone networks ■ Capability for surveys with fixed point holding ■ Compact size that can be transported by a van ■ Equipped with power supply and LAN ports to accommodate various devices *For more details, please download the PDF or feel free to contact us.

• Other measurement, recording and measuring instruments

Collection of large dead fish at fish farms and bottom sediment sampling at aquaculture sites using underwater drones.

We offer a "Sampling Kit for Underwater Drones" that can be customized to fit the arms of your underwater drone. We design and manufacture large dead fish retrieval kits, grab sediment kits, and core sediment kits that utilize the robotic arm of your underwater drone. By using underwater drones, you can safely and easily address challenges in aquaculture facilities and port facilities. 【Features】 <Large Dead Fish Retrieval Kit> ■ Operates buoyancy devices with the robotic arm ■ Capable of retrieving dead fish weighing up to 130 kg ■ We can suggest retrieval kits based on the target fish *For more details, please download the PDF or feel free to contact us.

• Other contract services

The reality of damage caused by eating captured with an underwater time-lapse camera.

Monitoring using an underwater time-lapse camera Meeting expectations for long-term unmanned shooting in aquaculture and seaweed bed sites This underwater time-lapse camera is capable of long-term fixed-point shooting with a water pressure resistance equivalent to a depth of 50 meters. It is designed for use in harsh underwater environments and comes with built-in batteries and memory, allowing for standalone operation. The camera can continuously shoot for up to 13 months (with a shooting interval of 10 minutes), and the shooting interval can be set from 1 minute to 99 minutes according to the scene being used. 【Features】 ■ Water pressure resistance equivalent to a depth of 50 meters ■ Usable in harsh underwater environments ■ Built-in batteries and memory ■ Usable as a standalone device ■ Continuous shooting for up to 13 months (with a shooting interval of 10 minutes), etc. *For more details, please download the PDF or contact us.

• Color camera

It can be attached to underwater sensors and sediment samplers to capture images of the sea and seabed.

The "MW-PVCAM60M-03" is an underwater camera designed to withstand water pressure equivalent to a depth of 6,000 meters. It can capture approximately 8 hours of footage. It can be mounted on underwater instruments or sediment samplers to photograph the ocean and seabed. Additionally, the camera's start and stop operations can be controlled remotely without opening the pressure-resistant container, such as from a ship. 【Features】 ■ Water pressure resistance equivalent to a depth of 6,000 meters ■ The camera's start and stop operations can be controlled remotely without opening the pressure-resistant container, such as from a ship. *For more details, please refer to the PDF document or feel free to contact us.

• others

A wide variety of underwater pressure-resistant containers are available, including transparent types and compact types.

This catalog features the "Underwater Pressure Containers" handled by Marine Work Japan Co., Ltd. It includes a variety of products such as medium and large types, optional items, and custom products. Please feel free to contact us if you have any requests. 【Featured Products】 ■ LED Light Containers ■ Underwater Camera Containers ■ Sensor Logger Containers ■ Battery Containers ■ Tough-Ram® Treatment, etc. *For more details, please download the PDF or contact us.

• Other laboratory equipment and containers

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact on the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

● This is a leak testing device for small electronic components that does not use fluorinated inert liquids (PFAS-free). ● There is no longer a need for unstable visual confirmation through liquid immersion testing. It adopts a quantitative testing method that allows for stable pressure leak testing. ● It is a tabletop leak testing device specifically for gross leaks, with accuracy equal to or greater than that of liquid immersion testing. ● The detectable range is approximately 1×10⁻² Pa·m³/s to 1×10⁻⁶ Pa·m³/s (varies depending on the target product). ● It is suitable for sealed structures ranging from a few millimeters to a maximum of 80 × 70 mm. Please feel free to contact us for more information!

● The production time for casting prototypes can be shortened! Since model production is not required, the time needed to create prototypes, which previously took about a month, can be significantly reduced. ● Model costs can be reduced! By directly producing sand molds from 3D data, there is no need for model production costs. If changes to the model are necessary, they can be addressed by modifying the 3D data. ● Similar products with different shapes and dimensions can be prototyped simultaneously! With one molding process, different products with similar shapes or varying dimensions can be molded at the same time. This allows for the verification of multiple types in a short period.