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Increasing the Amount of Resources Saved

Results of FY2017

Under the Sixth Environmental Action Plan, we aim to reduce resource consumption by a cumulative total of 460,000 tons by FY2020. In FY2017, the total amount of resources used in Toshiba Group's major products, estimated by multiplying the amount used for products and packaging materials by the number of shipments, was approximately 300,000 tons. Based on comparisons with previous product models and adjusting for the expected number of years of use, we also estimated to what extent resource consumption has been reduced for different products. Our comparisons show that we have reduced the use of resources by 99,800 tons compared to previous product models, thus nearly achieving the planned amount of 100,000 tons for FY2017.

Amount of resources saved (cumulative total)

FY2017
target
FY2017
result
FY2018
target
FY2020
goal
100,000 t 99,800 t 180,000 t 460,000 t

Amount of resources used and reductions in resource consumption by business segment (FY2017)
[Image] Amount of resources used and reductions in resource consumption by business segment

*
Calculated by comparison with the previous product models adjusting for the expected number of years of use

Future initiatives

We will continue to promote resource-saving designs for all products with the aim of further reducing resource consumption.

Case : Magnet-less synchronous reluctance motor

Toshiba Industrial Products and Systems Corporation

As the global demand for energy increases, there are ever stronger demands to increase energy efficiency in industrial motors. The performance of high efficiency motors generally depends on the neodymium magnet, which is a magnetic material and a type of permanent magnet. Dysprosium which is the rare earth element (heavy rare earth element), to be added to the magnet, is unevenly distributed throughout our planet and present only in extremely small amounts so making efforts to reduce consumption is very important.

Toshiba Industrial Products and Systems Corporation therefore developed a magnet-less synchronous reluctance motor with excellent resource-saving capability that does not use any aluminum conductor or permanent magnet (which is a rare earth metal) since it instead utilizes a rotor composed of an iron core with a slit-like gap called a flux barrier*1. By also making the most of the reluctance torque*2 through an optimized flux barrier, the motor achieves high efficiency equivalent to IE5*3.

*1
Currently, a prototype has been developed (as of September 2018).
*2
A torque generated by a (magnetic) reluctance.
*3
The highest level of efficiency defined in the motor energy efficiency guideline in Annex A of the international standard IEC60034-30-1.

[Image] Magnet-less synchronous reluctance motor (prototype)
Magnet-less synchronous reluctance motor (prototype)

[Image] Rotor construction
Rotor construction

Case : Paper reuse system Loops

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Cases in FY2015

Case : Color MFP e-STUDIO5005AC Series

[Image] Color MFP e-STUDIO5005AC Series

Toshiba TEC Corporation

e-STUDIO5005AC series achieved the minimum product mass and installation area*1 with 3D laser welded frame and re-design of the case layout. Also achieved the highest resource savings*1 by increasing the percentage of use of recycled plastics with the use of high post-consumer recycled material. Further achieved the highest energy savings*1 (top-level Typical Electricity Consumption*2) by using a low melting point toner and improving the thermal conductivity of the fusing belt.

*1
At the time of product release; the current position is not guaranteed
*2
Indicator of energy efficiency

Case : BiCS FLASH™*, a three-dimensional flash memory that can store massive amounts of data

[Image] BiCS FLASH, a three-dimensional flash memory that can store massive amounts of data

Toshiba Storage & Electronic Devices Solutions Company

By arranging two-dimensional NAND flash memories in three dimensions, BiCS FLASH™ has broken through the limitation of 128-Gb die density, which was difficult to overcome due to miniaturization limitations. The memory capacity per die has increased to 256 Gb, which means a single BiCS FLASH™ die can store an amount of data equivalent to approximately 200 years' worth of newspapers. Paperless storage of information also helps conserve resources.

*
BiCS FLASH™ is a trademark of Toshiba Corporation

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Case in FY2014

Case : Automatic ticket gates

[Image] Automatic ticket gates

Toshiba Corp. Social Infrastructure Systems Company

The body width of the new EG-5200 automatic ticket gate has been reduced from 180 mm (the width of a conventional 2009 model) to 160 mm in order to increase the aisle width by 40 mm and to enable passengers to pass through gates more smoothly. We also performed a strength analysis using the finite element method (FEM) to minimize the thickness of the steel board, thereby reducing the gate's weight by 5%. In addition, we used a new material for the doors in order to minimize potential impact on the human body and to reduce the product's overall weight. We also reduced the number of motors and improved various parts, such as by integrating substrates, thereby reducing power consumption by 15%. Furthermore, we reduced the product's environmental impact throughout its life cycle by greatly reducing the number of man-hours as well as the period of time required for software development through recycling-oriented hardware design (certified as an Excellent ECP for FY2014).

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