·Possible developments of environmental technologies by cooperation and collaboration with new social constitutions.
·Transfers of garbage disposal technologies of homes and businesses of Japan to China and other countries
·Response to major social impacts of declining birthrate and Population Aging.
·Chinese environmental problems, population aging problems, problems of social security and of social welfare, and so on, are possible to apply and develop in various fields.
·Social system technologies which support spontaneous developments of China can make big contributions to Chinese society.
