| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that confidential documents, a batch of documents, etc., enclosed in windowed envelopes or direct mails are frequently sent to specific customers to fill the customers' mailboxes daily with lots of mails and deliveries, from which the customers usually select only what they need by checking senders or windows on the mails, and open the selected mails and deliveries only without opening other mails and deliveries. <P>SOLUTION: A transparent relief hologram sheet is pasted on a window of a windowed envelope to differentiate the envelope from other mails and deliveries. The transparent relief hologram sheet has a large opening, and is pasted on a part bearing an addressee, etc., that the addressee confirms without fail. Hence a windowed envelope reliably improving the probability of an addressee's opening the envelope is provided. <P>COPYRIGHT: (C)2012,JPO&INPIT |
