Sense Technologies Inc., with worldwide manufacturing and marketing rights to the Guardian Alert(TM), announced the granting of the company's patent on its Doppler microwave radar back-up warning device for the country of Japan. The Japanese patent is the latest in the company's continuing process of acquiring patent protection for major world markets. Sense Technologies currently holds the patent for its Guardian Alert Back-Up Warning System in the United States, Canada, Great Britain and Australia as well as Japan.