| 摘要 |
PROBLEM TO BE SOLVED: To provide an inner structure of a glass vessel capable of preventing an external impact from changing a location inside the glass vessel of a glass fiber heat insulator packed in order to protect an IC tag from heat, in the heat-resistant tag accommodating an IC tag inlet inside the glass vessel.SOLUTION: In a heat-resistant IC tag, an IC tag 10 is accommodated inside an airtight glass vessel 2 and a gap is filled with a glass fiber heat insulator 3. The glass vessel 2 includes a fixing layer 5 in which glass fine powder is fixed at a prescribed thickness, at an upper inner wall portion descending from a shoulder R32. The prescribed thickness is within a range from 3 mm to 1 mm.SELECTED DRAWING: Figure 4 |
