Japan's only full-line lock and key manufacturer.

Beautiful Handleset for Entrance Handle Door.

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 TD451-T6000

TD451-T4001

TD451-T4000

Blister Pack Lineup

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 Headquarters and Overseas locations 

Alpha's History 

We make use of technique cultivated in the long period of history and meeet variety of needs of customers.

In the Automolie Parts business, ALPHA Corpration designs, developes, and manufactures the key sets and door handles needed by every automobile.

In Housing Hardware business, we create innovative products such as knob with high sevurity dimple key, DIGITALOCK, electronic lock , Passive way for condo etc.

entry key