Morishita Jintan Co., Ltd.

Fumiyoshi Inoue

Shinsuke Sonoi

Yukio Kikuchi

Yasunori Takiguchi

There is provided a disposable temperature indicator utilizing a change in condition of organic compounds at their melting point for the indication of temperature. The disposable temperature indicator is used as a disposable clinical thermometer which comprises a temperature-sensing portion having a temperature-indicating mixture composed of a solid solution of two organic compounds belonging to n-aliphatic hydrocarbons, nontoxic, odorless and having a narrow range of melting points particularly suitable for use in clinical thermometers or a temperature-indicating mixture containing an amount of color reagent as means for developing a change in color upon the change from the solid to liquid state of the temperature indicating mixture upon exposure to heat of a body to be temperature-registered; and a temperature-indicating portion formed of a porous thin plate with one surface or both surfaces thereof coated with one or both of a pair of compounds soluble in said temperature-indicating mixture, such resulting coating serving to produce a color compound by reaction with said temperature-indicating mixture.

Growing community of inventors

Yamatokouriyama, Japan

Fumiyoshi Inoue