Environmental Contribution through the Provision of Products (Eco-products)

We screen the environmental performance of new products based on our own internal regulations (TES*), and work to develop environmentally friendly products. In accordance with the new product development screening rules, we set up a product development screening committee and conduct deliberations for each product planning theme. The screening rules stipulate principles to be considered during development and design, and include the examination of environmental performance in terms of compactness and minimization of the number of parts, as well as environmental measures.

The Company recognizes its responsibility for the environmental impacts of its products over their entire life cycles. In 2016, the Technical Working Group of the CSR Committee unified the calculation standards for converting emissions to CO₂ at every stage from product manufacturing to disposal (life cycle assessment: LCA). The CO₂ emissions derived through this method are set as essential evaluation items in new product development screening. LCA targets are set at the time of design, and LCA performance is calculated and evaluated by evaluation organizations to determine the results. Since fiscal 2023, we have been carrying out Life Cycle Assessment (LCA) calculations in a sequential manner for existing products, simulating Scope 3 Category 11 emissions (CO₂ emissions associated with the use of products sold by our company), and evaluating emission reductions resulting from functional improvements. We will continue to make improvements to increase production efficiency and reduce emissions.

Due to the nature of production equipment, products of Tokyo Seimitsu offer many hours of operation and have long service lives. Consequently, when converted into CO₂ emissions, power consumption from usage of products accounts for a good deal of total emissions over the life cycle.

This has prompted us to focus on developing and designing products for reducing environmental impact during manufacturing activities conducted by our customers.

* Environmental impact caused by precision guaranteed over a wide temperature range

Power semiconductors are important devices used in power converters. They are essential devices for the realization of a decarbonized society as they can reduce power consumption and use energy efficiently, and are used in various electronic devices including electric vehicles, railcars, refrigerators, air conditioners, wind power generation equipment, and renewable energy-related equipment.

The Group has strengthened its product lineup to support next-generation power semiconductors that can withstand high voltages and high currents, lose little energy, and be miniaturized.

In order to efficiently transmit power with precision in automobiles, airplanes, etc., components must be manufactured as designed and as specified. By measuring and managing the dimensions, shape, roundness, and surface texture of parts, manufacturing is progressing toward the realization of decarbonization.

Based on our basic philosophy of “No Measurement, no Manufacturing,” we are contributing to the improvement of performance and fuel efficiency in the automobile and aircraft industries through our measurement technologies.

In recent years, climate change brought about by greenhouse gas emissions has become increasingly apparent, and natural disasters have been occurring frequently around the world. In particular, internal combustion engine automobiles and coalfired thermal power generation are cited as generating large amounts of CO₂, and it is said that curbing these emissions is key to saving the global environment. It is important, therefore, that electric vehicles that do not generate CO₂ spread quickly, along with systems that store electricity from solar power generation. Lithium-ion and other rechargeable batteries are at the core of such systems. Our charge/discharge testing systems, which can inspect the charge/discharge performance and life of rechargeable batteries, are used for test batteries during development and inspect batteries during manufacturing, contributing to the development of safer, higher-performance batteries and confirmation of safety and performance in manufacturing.

Tokyo Seimitsu is the only manufacturer of semiconductor manufacturing equipment that possesses measurement technologies. As new value creation unique to our company, we are developing semiconductor manufacturing equipment models with built-in measuring instruments. Equipped with Opt-scope, a 3D white light interferometer microscope that measures surface properties, the relevant model improves the detection accuracy of shape and surface properties, contributing to improved quality and productivity.