Title:
TEMPERATURE INDICATING DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2004/038353
Kind Code:
A1
Abstract:
A temperature indicating display device capable of displaying a thermo-history above a predetermined temperature reliably and irreversibly. Moreover, it is possible to provide a laminated body having a temperature detecting layer and an information recording film layer. When the temperature indicating display device is exposed to a predetermined temperature, an irreversible change is caused and the temperature history can be displayed. Moreover, the temperature indicating display device includes an information recording film layer containing information, an information record holding layer for holding the information, and a temperature detection agent layer composed of a material whose state is changed according to a temperature and is characterized in that when a predetermined temperature is detected, the material of the temperature detection agent layer is changed so as to change the display state of information recorded in the information recording film layer. A laminated body using the temperature indicating display device, a vessel containing the device, and a labeled temperature indicating display device are also disclosed. Furthermore, the present invention provides a side-type temperature indicating display device in which a conventional information display member can be used as it is.
Inventors:
ISHII TADAHIRO (JP)
TSUNODA KATSUNORI (JP)
KAIMAI MITSURU (JP)
ASAKAWA YOHKO (JP)
TSUNODA KATSUNORI (JP)
KAIMAI MITSURU (JP)
ASAKAWA YOHKO (JP)
Application Number:
PCT/JP2003/002048
Publication Date:
May 06, 2004
Filing Date:
February 25, 2003
Export Citation:
Assignee:
CHROMIC CO LTD (JP)
ISHII TADAHIRO (JP)
TSUNODA KATSUNORI (JP)
KAIMAI MITSURU (JP)
ASAKAWA YOHKO (JP)
ISHII TADAHIRO (JP)
TSUNODA KATSUNORI (JP)
KAIMAI MITSURU (JP)
ASAKAWA YOHKO (JP)
International Classes:
B65D79/02; G01K3/00; G01K11/06; G09F3/02; (IPC1-7): G01K11/06; G01K11/12; G09F3/02; C09K3/00; C09J7/02; B65D25/20
Foreign References:
| JPS60190825A | 1985-09-28 | |||
| JP2001083020A | 2001-03-30 | |||
| JP2521629B2 | 1996-08-07 | |||
| JPS61130835A | 1986-06-18 | |||
| JPH0228418Y2 | 1990-07-31 | |||
| US4333339A | 1982-06-08 |
Other References:
See also references of EP 1560009A4
Attorney, Agent or Firm:
Saeki, Norio (Aminosan Kaikan Building 15-8, Nihonbashi 3-chom, Chuo-ku Tokyo, JP)
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