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Development Philosophy

3 Plus

“3+”(3 Plus) is a development concept by Murakoshi MFG.
We introduced this new concept during the Japan Home+Building Show 2007 as a first in the mounting hardware industry, as part of efforts to explain our development methods to our customers.


Helping meet the basic needs of users for “more comfortable”, “safer” and “more convenient” products and upholding the fundamental trio of qualities: Silent, Safe and Smooth. Ultimately, doing so will boost the “satisfaction” of our customers.
This concept also reflects Murakoshi MFG's determination to create top-quality products in future as well as realizing our "absolute quality" vision.