Color memory toy set
First Claim
1. A color memory toy set, comprising:
- a color memory toy having a surface, at least one portion of said surface being provided with a color memory temperature-sensitive color changing layer colored with a coloring material comprising a color memory temperature-sensitive dye exhibiting hysteresis characteristics in response to temperature change between either (i) a colored state and a colorless state or (ii) a first color state and a second color state; and
at least one simulated writing pen, said simulated writing pen comprising a pen body with a metal simulated writing tip end and a hollow pipe, wherein hot water as a heat medium or pieces of ice or cold water as a chilling medium can be freely inserted and removed therefrom so as to respectively form a hot-pen or a cold-pen thereby;
wherein said hot-pen causes at least a part of an image to appear or disappear on said color memory temperature-sensitive layer by drawing an image on said layer whereby to change the color state of the drawn portion into a first state and said cold-pen causes at least a part of an image to appear or disappear on said color memory temperature-sensitive layer by drawing an image on said layer whereby to change the color state of the drawn portion to a second state.
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Accused Products
Abstract
A color memory toy set has a color memory toy with surface, at least one portion of the surface being provided with a color memory temperature-sensitive color changing layer colored with a coloring material including a color memory temperature-sensitive dye exhibiting hysteresis characteristics in response to temperature change between a colored state and a colorless state or between a color (I) state and a color (II) state. The toy set also includes a writing pen for either causing an image to appear or disappear on the color memory temperature-sensitive layer by drawing the image on the layer to change the color state of the drawn portion into a first state, or for causing an image to appear or disappear on the color memory temperature-sensitive layer by drawing the image on the layer to change the color state of the drawn portion to a second state.
67 Citations
6 Claims
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1. A color memory toy set, comprising:
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a color memory toy having a surface, at least one portion of said surface being provided with a color memory temperature-sensitive color changing layer colored with a coloring material comprising a color memory temperature-sensitive dye exhibiting hysteresis characteristics in response to temperature change between either (i) a colored state and a colorless state or (ii) a first color state and a second color state; and at least one simulated writing pen, said simulated writing pen comprising a pen body with a metal simulated writing tip end and a hollow pipe, wherein hot water as a heat medium or pieces of ice or cold water as a chilling medium can be freely inserted and removed therefrom so as to respectively form a hot-pen or a cold-pen thereby; wherein said hot-pen causes at least a part of an image to appear or disappear on said color memory temperature-sensitive layer by drawing an image on said layer whereby to change the color state of the drawn portion into a first state and said cold-pen causes at least a part of an image to appear or disappear on said color memory temperature-sensitive layer by drawing an image on said layer whereby to change the color state of the drawn portion to a second state. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification