Title:
タイムインジケータ
Document Type and Number:
Japanese Patent JP7224896
Kind Code:
B2
Abstract:
To provide a time indicator capable of freely designing a period from the start of use to the end, and capable of reducing the size and thickness thereof.SOLUTION: A time indicator has a synthetic resin capable of transmitting visible light, and a sublimable substance dispersed in the synthetic resin. This time indicator changes the transmission characteristics of visible light passing through the synthetic resin due to the sublimation of the sublimable substance over time. A user can determine the elapsed period and the end by looking at the change in the transmission characteristic of visible light.SELECTED DRAWING: Figure 1
Inventors:
Atsushi Mimata
Masayoshi Hayashi
Masayoshi Hayashi
Application Number:
JP2018239196A
Publication Date:
February 20, 2023
Filing Date:
December 21, 2018
Export Citation:
Assignee:
St Corporation
International Classes:
G04F1/02
Domestic Patent References:
| JP50107982A | ||||
| JP6098383A | ||||
| JP613487U |
Attorney, Agent or Firm:
Masatoshi Kurata
Nobuhisa Nogawa
Naoki Kono
Tadashi Inoue
Shigeru Iino
Sanae Kaneko
Nobuhisa Nogawa
Naoki Kono
Tadashi Inoue
Shigeru Iino
Sanae Kaneko