Title:
TEMPERATURE HISTORY DISPLAY BODY
Document Type and Number:
Japanese Patent JP2018184488
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a temperature history display body that can identify the time at which the temperature was deviated from a predetermined storage temperature.SOLUTION: A temperature history display body has: a developing layer composed of continuous porous bodies holding a developing agent; a coloring layer composed of continuous porous bodies holding a coloring agent on the surface; and a barrier layer for isolation between the developing layer and the coloring layer. The barrier layer is disposed between the developing layer and the coloring layer, and is adjacent to the developing layer and the coloring layer in horizontal direction.SELECTED DRAWING: Figure 1
Inventors:
SASAKI HIROSHI
AIDA KOHEI
TADA YASUHIKO
ARATANI SUKEKAZU
KAWASAKI MASAHIRO
YUASA TOYOTAKA
AIDA KOHEI
TADA YASUHIKO
ARATANI SUKEKAZU
KAWASAKI MASAHIRO
YUASA TOYOTAKA
Application Number:
JP2015167357A
Publication Date:
November 22, 2018
Filing Date:
August 27, 2015
Export Citation:
Assignee:
HITACHI LTD
International Classes:
C09K3/00; G01K11/06
Attorney, Agent or Firm:
Yuji Toda