Implementing JMAG

- How will the Meidensha Corporation expand their business in the future and what role will JMAG play?

Mr. Yamada The Meidensha Corporation created a medium-term management plan, "POWER 5," which is a five year plan starting from fiscal 2009. In this medium-term plan, we are striving to expand our business in 5 areas that contribute to a low-carbon society, such as motors and inverters for electric vehicles. Each of these business areas relates to rotating machine technology in some way, such as motors. The direction of technology in the future points to continuous technological development for rotating machines. In addition, innovation of products contributing to environmental conservation is also indispensable.

In the future, design methods accounting for the biodegradability of products, which is the last stage of their life cycle, will be necessary to meet the challenges in reducing the total environmental burden. PM motors, for example, will probably need to be innovatively designed so that the permanent magnets of the rotor can be recycled easily. Heavy electric equipment and industrial electric systems, just like appliances, require recycling control methods founded in product liability.

Mr. Watanabe Product development has to be environmentally friendly as well as consumer friendly, not simply by quantitatively understating the environmental burden of the products, but by establishing a product life cycle management system. Therefore, it is necessary to know the performance of products at an early stage of development or even at the stage of concept. And it means that simulation becomes more and more important.

I have realistic expectations that the calculation speed will continue increasing and the range of analysis will expand to thermo-fluid analysis. However, stepping back for a wider perspective, I would love to see functions to calculate the CO2 emissions of a product at the analysis stage and increase the percentage of materials used in products that can be recycled.

JMAG is evaluated highly as one of the major leaders in magnetic field analysis software since its release in 1983. And for this reason, I expect JMAG to continue being a software that engineers can rely on.

Motor and Inverter for the i-MiEV

(Kabushiki Kaisha Meidensha)

Consolidated Number of Employees
Consolidated Sales


June 1, 1897
¥17, 070 million (as of March 31, 2009)
7,133 (as of March 31, 2009)
¥198,797 million (as of March 31, 2009)
Junzo Inamura

Business Overview
The Meidensha Corporation was established as a heavy electric machine manufacturer in 1897. In addition to business in social infrastructure, such as generators, transformers, control equipment, and water processing equipment, the Meidensha Corporation is founded in industrial systems, such as drive equipment for elevators and electric vehicles and industrial computers, as well as maintenance of the various equipment. Their consolidated sales are ¥198,797 million as of March 2009. The Meidensha Group is a global manufacturing and sales group that has 23 companies domestically in Japan and 15 companies internationally which are localized in Asia. Presently, they are focusing on various components for electric vehicles and the use of natural energy, such as solar power and wind generators.


  1. Implementing JMAG Meidensha Corporation  
  2. Motor Development Using JMAG
  3. JMAG Application Catalog
[Iron Loss Analysis of an IPM Motor]   [Thermal Demagnetization Analysis of an SPM Motor]
  4. Exhibition Report - TECHNO-FRONTIER 2010 -

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