| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the following problem that, when sending confidential letters or sending a plurality of pieces of paper by using a windowed envelope, the pieces of paper are enclosed in the envelope and mailed or direct mail is directly sent to a specific customer very popularly, consequently, many pieces of mail and delivered objects are dropped into a mailbox of each customer in a day, and each person selects the required mail or delivered object from many pieces of mail or delivered objects depending on a sender or in a range confirmable from the window, and then he/she opens only the selected mail or delivered object but discards the other mail or delivered object without opening them in many cases. <P>SOLUTION: A hologram sheet is stuck to a portion of the window of the windowed envelope to differentiate the envelope from the other mail or delivered objects. Besides, an opening is made large and provided at a portion corresponding to an address or the like that an addressee necessarily confirms, whereby opening efficiency is more surely improved, and the address is exactly known by only slightly tilting the windowed envelope. <P>COPYRIGHT: (C)2012,JPO&INPIT |
