Product-related Initiatives for the Environment Back Number (2017)
Back to Latest Product-related Initiatives for the Environment
Basic Approach
Since its products are utilized in many different kinds of end-products, the MinebeaMitsumi Group believes that it is important to consider environmental contributions throughout the product life cycle. This responsibility extends from ensuring that its parts are free of materials hazardous to the environment, to energy-efficiency, resource-efficiency, and long-life.
Group's Environmentally Conscious Products
The products that the MinebeaMitsumi Group produces and sells are environmentally conscious. This means that they satisfy various countries' environmental laws and customers' environmental requirements from the development and design stage as well as undergoing voluntary product chemical substance evaluations and product assessments.
New LED lighting fixture "SALIOT CUBE"
External view of SALIOT CUBE
By using motors to control the distance between the LED and the lens, SALIOT made it possible to adjust the light radiation area and distribution angle from 10 to 30 degrees. In addition, through the application of wireless technology in the development of our original software, this product allows users to easily control the vertical and horizontal orientation of lighting, the light distribution angle, and brightness with a smartphone or tablet.
The external appearance of SALIOT CUBE has been brought together in a minimal cubic style, simple and robust, and able to harmonize with the installation space.
Swing Coolant Jetting Device "Wavy Nozzle 2"
External view of Wavy Nozzle 2
The MinebeaMitsumi Group developed a new model of its Wavy Nozzle® swing coolant1 jetting device for removing machining dust and chips with the "Wavy Nozzle 2," launched in April 2017.
1. Cutting fluid and grinding fluid used to cool and lubricate parts being machined during machining
Further enhanced freedom of fixing location due to miniaturization
By thoroughly reviewing the internal structure, we succeeded in miniaturizing the size of the jet unit to 49.7% of its previous size, while maintaining the same nozzle performance. The new model can be mounted to machine tools operating in small working areas where mounting of the previous model would have been difficult.
Powered up with double the maximum coolant supply pressure
The maximum coolant supply pressure was enhanced from the conventional 2MPa to 4MPa. This made it possible to directly supply coolant from almost any medium-pressure coolant pump device. We hope to achieve the next-level in machining dust and chip removal by combining a stronger coolant jet and nozzle swing, which will contribute to improved quality and processing efficiency in the machining of precision components.
LED Backlight Units for LCD Displays
LED backlight unit for LCD displays
The MinebeaMitsumi Group develops, manufacturers, and sells LED (light-emitting diode) backlight units which illuminate smartphone and tablet computer LCD displays from the rear.
The optical guide plate is critical to spreading LED light evenly over the display, as the LED backlight units are positioned on the edge of the device. We leveraged our superior plastic injection molding processes using our proprietary design development and our precision molds to successfully develop optical guide plates measuring 0.3 mm thick or less. The thinner optical guide plates not only help to make the end products thinner, but help to reduce power consumption, weight and size compared with previous models.
Development of High Heat-resistant Ball Bearing Unit for Turbochargers
High heat-resistant ball bearing units for turbochargers
The MinebeaMitsumi Group has developed and begun manufacturing and selling a highly heat-resistant ball bearing unit for turbochargers (air supply device to force air into the engine) which prevents burning of the unit's components. The balls are made of ceramics and the casings used to hold the balls are made of high heat-resistant materials to prevent the shaft bearing from expanding and burning.
Currently, automakers around the world are striving to improve the fuel efficiency of engines to make them more environmentally conscious. As one measure, automakers have been adopting smaller displacement engines and fitting them with air supply devices to boost output and thereby raise fuel efficiency.
We expect these trends to gain further momentum in Japan and Europe, where fuel efficiency regulations are tightening, and in North America, where large-sized gasoline cars are common.
High-performance VR Resolver (Rotation Angle Sensor)
High-performance VR resolver
The MinebeaMitsumi Group has developed a high-performance VR resolver (rotation angle sensor), a critical component of drive motors used in next-generation eco cars, including electric vehicles (EVs), hybrid electric vehicles (HEVs) and plug-in hybrid electric vehicles (PHEVs). The Group is producing and delivering the component to automakers in and outside Japan.
The VR resolver is a vital angle sensor for accurately controlling the rotation of the drive motor. It is a key component that significantly affects power consumption and driving performance of eco cars.
Management of Environmental Impact Materials Included in Products
The MinebeaMitsumi Group has issued the standards and regulations on chemical substances in products requiring suppliers to supply products (raw materials and parts) free of hazardous substances along with data and documentation verifying their products' safety. We also conduct our own verification tests of suppliers’ products using XRF (X-ray fluorescence spectrometers) to ensure the products are free of hazardous materials subject to RoHS regulations.
Management methods for chemical substances contained in products
- Note 1. (M)SDS ((Material) Safety Data Sheet):
A data sheet covering information required for safe handling of chemical substances (ingredients, characteristics, handling methods, and emergency coping methods). - Note 2. MSDSplus:
A data sheet recommended by the Joint Article Management Promotion Consortium (JAMP) to communicate basic information regarding chemical substances and compounds. Contains information not included in the (M)SDS that is required for management of toxic chemicals incorporated in products. - Note 3. AIS (Article Information Sheet):
A basic sheet recommended by JAMP for communicating information on toxic chemicals incorporated in product molds. Compiled based on (M)SDS, MSDSplus, etc. - Note 4. JGP File:
A standard format file stipulated for Green Procurement inspection by the Japan Green Procurement Survey Standardization Initiative (JGPSSI).
Future Issues and Goals
The MinebeaMitsumi Group will continue to accurately grasp the detailed needs of society in order to develop products that can contribute to safety, energy-efficiency and resource-efficiency.