Give brief information about 'The Kanagawa Treaty'?

1)       Considering the extent and strength of Commodore Perry's navy, the then Japanese Prime Minister Tokugawa Shogunate signed a business agreement with America on 31st March 1854 at Kanagawa Treaty.
2)       According to this agreement, America was allowed entry to the Shimonda and Hakodate ports for procuring wood, coal and water. American envoy (representative) could stay in Japan.
3)       The American sailors in distress would be given Japanese assistance.
4)       America was allowed to do business in Japan by the local rules and regulations.

5)        In this way, the non aligned status of Japan came to an end and the decline of Tokugawa Shogunate began.