To provide a receptacle capable of opening easily while having high airtightness or liquid-tightness.
The receptacle constituted by having a receptacle body 1 in which one or multiple wells 2 capable of holding a solution is formed and is composed of a plastic material, a lid 4 which consists of the plastic material and one or multiple welded sections 5 which connects the receptacle body 1 with the lid 4 in the circumference of each well 2 is formed by causing the welded section 5 to melt part of the receptacle body 1 and part of the lid 4 melt. The welded section 5 is formed by ultrasonic vibration, it is preferable that the width of the welded section 5 is, for example, in the range of 0.25 to 0.65 mm in the case of polycarbonate.
COPYRIGHT: (C)2007,JPO&INPIT
Kobayashi Yoshinori