The Sumishirushi, is a stamp that corporations and sole proprietors to use. Company name or trade name has been carved rather than a personal name. Invoice in the main Company, receipt, is likely to be used to hanko in such quote. If as a hanko for the corporation, but there is a circle corporation, tend company is often to be registered as the official hanko. In contrast Sumishirushi is said to hanko to the private hanko role for businesses. Corporations and sole proprietors invoices, receipts, by stamping the documents such as quotations company issues, it has a effect to clarify that the company has issued a document. If you start a business in be created in the generally set the both Japan has become customary. Not necessarily Moteru anyone in the case of the company, is the tendency is often to have the person who went to a certain degree of job title. Mainly use the circles, for example, if the company is to hanko the agreement, such as business partners. However, in the case of the corner mark will be many turn in the company such as the hanko of the invoice. By marking both the stamp in the contract in a transaction, there is also the effect that the contract in strong.