Japanese used to say water and security are free, but with the rise in home burglaries, one of those commodities is no longer a given.

Tokyo-based Asahi Glass Co., which has been manufacturing windows for housing construction, is now basking in business opportunities from the production of security panes for the home front.

Asahi Glass has seen steadily increasing sales of Secu-re security glass, one of the most popular such products in the nation. The company estimates that sales will reach 1.2 billion yen in 2003, five times more than last year.