Utility model patents are given in Japan for simple inventions and are easier to acquire than normal patents are. They are more difficult to enforce but can be the more economical option for those who simply wish to retain rights to a particular idea. In Japan, utility model applications have become fewer in recent years, but they may serve your particular needs most effectively. Keisen Associates, with skilled IP attorneys and technical staff in Philadelphia and Tokyo, can help you register your utility model in Japan. Or, if you are unsure whether to apply for a utility model or a patent registration for your particular invention, please feel free to consult us.