Business Overview

Characteristics of landing gear

As for products for Ministry of Defense, approximately 80% of the aircraft currently owned by Ministry of Defense are equipped with our landing gear systems. For civil aircraft, our systems are used in aircraft of well-known aircraft manufacturers, both domestic and international. We have a particularly strong presence in the field of regional jets (medium-sized aircraft), capturing approximately 15% of the global market share. We are involved in almost all development of domestic aircraft. We have accumulated technical experience as an integrator of landing gear systems.

Our strength is our Precision processing technology for high-strength metal materials. This inimitable technology has earned us great expectations and trust, and we have been involved in the design, development, production technology, and manufacturing of landing gear for many years.

Furthermore, in order to reduce the environmental impact, various equipment is being electrified. Currently, we are working on joint research and development with Airbus S.A.S of France on an EHA (Electro-Hydrostatic Actuation) system for retracting and extending landing gear.

Characteristics of Aerospace Thermal Management system

Since the 1980s, we have been supplying heat exchangers to Rolls-Royce plc, one of the three major aircraft engine manufacturers, for almost all of their engine series. In 2009, our performance with Rolls-Royce plc was recognized, and we were awarded the "Supplier of the Year" award.

We will develop new technologies and systems centered on thermal management technology and metal material joining technology, contributing to the high efficiency, small size and light weight of aircraft, as well as reducing air resistance, fuel efficiency and noise of aircraft engines.

The electrification of various aircraft equipment is increasing the amount of heat generated by various devices inside the engine. Meanwhile, the flow rate of fuel used as a coolant to dissipate the heat is decreasing as fuel efficiency improves. In other words, improving the cooling performance of thermal control systems has become an important technological challenge. Currently, we are working in collaboration with Rolls-Royce on research and development of a highly efficient, lightweight, and compact thermal control system for next-generation engines.

Heat exchanger features

Since developing Aerospace Heat Exchanger using our proprietary Aluminum immersion brazing method, we have been supplying high-performance, compact heat exchangers to various energy fields in industry and society.

Since delivering the first open rack LNG vaporizer (ORV) in Japan, we have contributed to the creation of a global energy value chain with our advanced technological capabilities. Our low-temperature industrial heat exchangers, used in applications such as air separation units and petrochemical plants, are highly regarded as a top brand, occupying an extremely large share of the domestic market and establishing ourselves as a major player in overseas markets as well.

As a main supplier of inverter control element coolers for high-speed railways to various heavy electrical equipment manufacturers in Japan, we boast the top share in the domestic market for element coolers for Shinkansen trains.

As part of our efforts to create a sustainable society, we have begun developing and supplying stainless steel heat exchangers for hydrogen stations, with the aim of realizing a hydrogen society. These stainless steel heat exchangers use a diffusion bonding technology that differs from conventional brazing, and are compact and space-saving, allowing them to cool ultra-high pressure hydrogen.

As part of our efforts for the future, we have developed a heat exchanger for data center servers. It is a compact and lightweight element cooling device that can handle CPUs with high loads and high heat density. We are currently promoting sales of this product as one of our next-generation strategic products, including for use in power conditioners for renewable energy generation such as solar and wind power, in addition to data centers.

Hydraulic control device features

After the war, at the beginning of the period of high economic growth, as domestic demand for hydraulic products surged, we introduced technology from a British hydraulic product manufacturer and, leveraging our experience in manufacturing hydraulic equipment for aircraft, we sell hydraulic pumps that are characterized by their energy-saving, low pulsation, and low noise for a variety of applications, including transportation and general industrial equipment.We established a joint venture in China with the Haitian Group the world's largest injection molding machine manufacturer, and are expanding our business based on this strong partnership.

We also handle coolant pumps, which are essential for machining. We offer a product series that can handle a wide range of pressures, which helps in manufacturing that requires advanced processing and shortens processing time. Our products are well known worldwide, and are affectionately known as "Sumitomo's pump" in Asia.

MEMS and semiconductor device characteristics

Our extensive lineup of MEMS and semiconductor manufacturing equipment is a distinctive feature. We can handle a wide range of needs, from user development and prototyping to mass production. Our flagship product, Precision deep silicon drilling equipment used in the 3D processing of MEMS and other electronic devices, together with our subsidiary SPP Technologies Co., Ltd. Co., Ltd., supplies 90% of global demand (according to our own research), making us the world's largest manufacturer of such equipment.

In addition, based on the technology cultivated in MEMS, we are also developing high-quality CVD (chemical vapor deposition) equipment and plasma etching equipment for the manufacture of LED and compound semiconductor devices. From March 2024, we will begin full-scale global sales expansion.

MEMS device characteristics

In 1999, our joint venture, Silicon Sensing Systems, began mass production of MEMS gyro sensors. Our track record spanning more than 20 years has earned us trust. Since our MEMS devices were adopted for applications such as automobile electronic stability control systems, we have received numerous inquiries from the high-precision market, and are known as the "world's most accurate MEMS gyro." Our devices are used in a variety of mobile attitude control systems and safety systems, including mineral resource mining, railway car bodies, GPS antennas, and satellite attitude control. We also operate a foundry business, handling the development and contract manufacturing of advanced MEMS devices for our customers.

We are also developing sensor application products that incorporate Precision' proprietary systems into Silicon Sensing Systems' gyro sensors.

Ozone Generator Features

Ozone has a powerful oxidizing power, but at the same time, it decomposes back into oxygen, making it environmentally friendly. Ozone is an essential technology for water treatment and manufacturing processes in the public and industrial sectors. We provide advanced water treatment systems that can decompose and remove harmful, persistent substances that are suspected of being carcinogenic. We have a proven track record of delivering ozone to a wide range of applications, including water supply and sewage systems, swimming pools, aquariums, industrial water/wastewater, recycled water, and other wastewater treatment plants, as well as food and industrial product production processes and pulp and textile bleaching processes.

We provide high-concentration ozone generators and ozone-added ultrapure water production systems for various manufacturing processes, such as film formation and cleaning, for cutting-edge semiconductors, which are becoming increasingly miniaturized and highly integrated.