Abstract
Recently, nanotechnology is regarded as very important for 21st century industries. Industrially advanced nations, which include USA and Japan, have been making efforts to develop nanotechnology and to build up nanotechrbusiness systems. Especially in USA and Japan, budgets more than 800M$ were invested to the nanotechnology in 2003. In this paper, I will show such a background of nanotechnology and clarify the problems Japan has in the near future.