At the International Seminar on Ocean Development, we presented our achievements as part of the Japan Foundation - DeepStar collaborative technology development grant program.

Seismic measurement is possible in extreme environments such as places where power cannot be supplied, environments where electronic components do not operate, and plant equipment with explosion-proof requirements!

The "Optical Sensor Seismometer System" enables high-precision seismic measurements in extreme environments where conventional equipment cannot operate, such as locations without power supply, environments where electronic components do not function, and plant facilities with explosion-proof requirements. 【Features】 ■ No power supply or electronic components required (from fiber optic cable to sensor unit) ■ High temperature, high pressure, lightning resistance, explosion-proof, and radiation resistance ■ Capable of long-distance and wide-area observation ■ Long-term stable operation in the field ■ Reduced construction time and cost *For more details, please check the related links below or contact us.

• Other measurement, recording and measuring instruments
• Vibration Inspection

● 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.

We will be exhibiting at the "New Manufacturing and New Services Exhibition for Small and Medium Enterprises" from December 16 (Tuesday) to 18 (Thursday), 2025. Please feel free to stop by our booth. We look forward to meeting everyone.

Thank you very much for your continued support. Donaldson Japan Co., Ltd. will be closed during the following period: From April 25 (Saturday) to May 6 (Wednesday). Inquiries made during the closure will be answered sequentially after May 7 (Thursday). We sincerely apologize for any inconvenience this may cause. Thank you for your understanding and cooperation.

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 Stitch 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.