Enhancing industrial competitiveness through innovative technologies that lead varying manufacturing

We are contributing to enhancing industrial competitiveness by developing advanced electronic and optical device technologies that enable both performance enhancement and significant energy savings of IT equipment, and innovative manufacturing technologies that enable energy savings, resource savings, and low cost. Moreover, we are building a highly efficient production system by combining innovative manufacturing technologies and sensing technologies based on the advanced devices.

New Research Results

World's First Motor Drive by a SiC Power Module with Built-in SiC CMOS Gate Driver

AIST researchers, in collaboration with MEIDENSHA CORPORATION (Meidensha), have realized the world's first motor drive by a SiC power module with a built-in SiC CMOS gate driver (hereinafter referred to as "SiC CMOS power module" — a power module that combines silicon carbide (SiC) devices with a complementary metal-oxide-semiconductor (CMOS) circuit for precise and efficient switching control).
Due to their high energy-saving performance, SiC (silicon carbide) power devices are being applied in fields where high efficiency is important, such as motor drive control for electric and hybrid vehicles. However, current SiC power devices are used only in extremely low-speed switching operations, without fully exploiting their inherent energy-saving performance.
AIST has been working on the development of high-speed switching operation technology for SiC power devices using SiC CMOS gate driver. This time, AIST and Meidensha have succeeded in driving a motor using SiC CMOS power modules for the first time in the world by conducting integrated joint research from basic device technology to motor system applications. By reducing noise through the unique gate drive method, the energy loss (switching loss) during switching operation can be reduced to about one-tenth by simply replacing the current SiC power module with a SiC CMOS power module, while improving the reliability of the motor system. The SiC CMOS power module is a new power module that is designed to be used in the future.
The results of this research were presented in detail at the 2025 IEEJ National Convention on March 20, 2025.

Motor system with power module incorporating SiC CMOS gate driver
^*Figures from the original paper have been cited and modified.

Fast and Direct Antiviral Agent Coating for Fibers and Sheets

Researchers at AIST, in collaboration with Shujitsu University, have developed a fast and direct coating technology of antiviral components on a wide range of substrates, from sheets to textiles.
The demand for antiviral coatings is increasing due to COVID-19 and other influences. However, conventional coating technologies are limited by the physicochemical properties of the surface, which can lead to chemical and/or physical damages to the substrates. The newly developed surface functionalization technology using photochemical surface modification (PSM) enables direct chemical modification (chemical immobilization) on the substrate surface while maintaining the chemical structure of the molecules under mild conditions. This technology enables fast and direct coating of antiviral agents. The results of demonstration tests have confirmed that the inactivation effect against influenza viruses lasts for two months.
This technology can be applied directly to a wide range of materials, from sheets to textiles. Since the antiviral effect is expressed without elution of the agent, it can be safely used in applications where the coating is in contact with mucous membranes or wounds for a long time. In the future, this technology is expected to be applied to textile coatings such as masks and medical gowns, and to building materials such as wallpaper.

Development of antiviral nanocoating technology

Other research organizations

Research Laboratory

• Nanometronics lab for structural materials

Open Innovation Laboratory

Since FY 2016, as a part of the “Open Innovation Arena concept” promoted by the Ministry of Economy, Trade and Industry (METI), AIST has created the concept of “open innovation laboratories” (OILs), collaborative research bases located on university campuses, and has been engaged in their provision. We are planning to establish more than ten OILs by FY 2020.

AIST will merge the basic research carried out at universities, etc. with AISTʼs goal-oriented basic research and applied technology development, and will promote bridging research and evelopment and industry by the establishment of OILs.

Cooperative Research Laboratories

In order to conduct research and development more closely related to strategies of companies, we have established collaborative research laboratories, bearing partner company names.

Partner companies provide their researchers and funding, and AIST provides research resources, such as its researchers, research facilities, and intellectual property. The loaned researchers of companies and AIST researchers jointly conduct research and development.

By setting up cooperative research laboratories, we will accelerate the commercialization of our goal-oriented basic research and application research with partner companies.