Message from the President

Sumitomo Precision Products Co., Ltd. started out in 1961 with Precision processing technology for metals used in aircraft equipment.

Since then, we have pursued and developed "Precision processing technology," solving problems for society and our customers, and growing in the fields of aerospace, industrial equipment, and ICT (Internet communication technology). We continue to work with the aim of becoming a company that contributes to society both now and in the future.

Our original aerospace business has grown by refining our design and manufacturing technology for aircraft equipment, focusing on landing gear and Aerospace Heat Exchanger. Our products are used not only by Ministry of Defense but also in civilian aircraft, and we have a solid track record of delivery. We hope to continue to grow further while contributing to the safety and reliability of aircraft.

Our industrial equipment business began with the expansion of industrial Aerospace Heat Exchanger. As a result, we have created a wide range of highly efficient heat exchanger products for a variety of applications, from energy plant products such as LNG (liquefied natural gas) vaporizers to inverter control element coolers for railway vehicles. We are now expanding this technology to include cooling semiconductor chips in data centers. Precision Products contributes to the sustainable development of society. We also utilize hydraulic technology used in aircraft equipment to manufacture low-pulsation, low-noise Precision hydraulic equipment, contributing to global manufacturing.

In the ICT business, we are a leading company in deep silicon excavation equipment with our unique plasma technology. We also manufacture CVD equipment, which is a thin-film deposition device. Furthermore, we have developed the field of ozone generators used in water treatment, which are now contributing to the semiconductor manufacturing field. We are also expanding our MEMS business.

"Environmental issues, including global warming, are important challenges that must be resolved in order to realize a sustainable society. We are also working on these challenges. Going forward, we would like to continue to make a "contribution" to our customers, all stakeholders, and society as a whole through our activities.

October 1, 2025
Representative Director, President
Tetsuya　Tsurumaru