Various embodiments provide a position pointer that includes a plurality of refill bodies that can be configured at low cost, and ensures freedom from malfunction during exchange of signals with a sensor section of a position detection device. In one embodiment, the position pointer includes a tubular housing having an opening portion, a plurality of refill bodies, a refill body selection mechanism section that selectively causes at least a tip of one of the plurality of refill bodies to project from the opening portion, a magnetic material core, and a coil wound around the magnetic material core. The refill bodies not selected by the refill body selection mechanism section are located away from a through hole of the magnetic material core.

Various embodiments provide a position pointer that includes a plurality of refill bodies that can be configured at low cost, and ensures freedom from malfunction during exchange of signals with a sensor section of a position detection device. In one embodiment, the position pointer includes a tubular housing having an opening portion, a plurality of refill bodies, a refill body selection mechanism section that selectively causes at least a tip of one of the plurality of refill bodies to project from the opening portion, a magnetic material core, and a coil wound around the magnetic material core. The refill bodies not selected by the refill body selection mechanism section are located away from a through hole of the magnetic material core.

There are provided a printing method and a printing apparatus for increasing visibility and printed matter printed using the printing method. The printing apparatus sprays a light-absorbing composition to form a light-absorbing layer on a print medium, and then sprays a color-variable composition on the light-absorbing layer to form a color-variable layer.

The present disclosure relates to a device for activating thermochromatic ink. The device may include a drawing tip, a heating element, which may include a positive temperature coefficient (PTC) heating element, communicably coupled to the drawing tip and configure to heat the drawing tip, and a power source configured to provide power to the heating element. The power source may be a lithium-ion battery. The battery may be rechargeable, and the device may have a charging port to recharge the battery from a power source coupled to the charging port. The device may have a regulator for regulating power from the power source to the heating element. The device may have a controller for directing power from the power source to the heating element. Further the heating element may be configured to heat the drawing tip to a temperature between 30-70 degrees Celsius.

The present disclosure relates to a device for activating thermochromatic ink. The device may include a drawing tip, a heating element, which may include a positive temperature coefficient (PTC) heating element, communicably coupled to the drawing tip and configure to heat the drawing tip, and a power source configured to provide power to the heating element. The power source may be a lithium-ion battery. The battery may be rechargeable, and the device may have a charging port to recharge the battery from a power source coupled to the charging port. The device may have a regulator for regulating power from the power source to the heating element. The device may have a controller for directing power from the power source to the heating element. Further the heating element may be configured to heat the drawing tip to a temperature between 30-70 degrees Celsius.

An agitatable coloring utensil is an apparatus that spins the tip of a drawing, coloring, or writing utensil as the user is using the drawing, coloring, or writing utensil. The apparatus includes a tubular body, a marking tip, a motor, a portable power source, and at least one user control. The tubular body is the structural housing for the other component of the apparatus and allows the user to have a firm grasp of the apparatus while using the apparatus to write or draw. The motor is used to drive the rotation of the marking tip. The portable power source is used to electrically power the motor and allows the apparatus to be easily transportable by the user. The user control allows the user to either activate, deactivate, or adjust the rotation of the marking tip.

The present disclosure relates to a writing instrument comprising a tubular body, a reservoir for an ink composition. The writing instrument comprises a nib comprising a switchable flow material, wherein the switchable flow material is configured to switch between a fluid flow preventing condition and a fluid flow enabling condition by a stimulus. The switchable flow material is configured to control flow of the ink composition from the reservoir to or towards a writing surface.

The present disclosure relates to a writing instrument comprising a tubular body, a reservoir for an ink composition. The writing instrument comprises a nib comprising a switchable flow material, wherein the switchable flow material is configured to switch between a fluid flow preventing condition and a fluid flow enabling condition by a stimulus. The switchable flow material is configured to control flow of the ink composition from the reservoir to or towards a writing surface.

A 3D pen capable of feeding out drawing materials of different colors simultaneously, and a nozzle thereof having a heater tip, a first installation seat and a second installation seat; the heater tip and the first installation seat are fixedly connected with each other; the first installation seat and the second installation seat are fixedly connected with each other; an outer wall of the heater tip has a recessed portion provided with a winding portion for installation of a heating device; a right end of the heater tip is provided with a third insertion portion; the third insertion portion is connected with the first installation seat; at least three feeding channels independent of one another are provided inside the heater tip; two ends of each of the feeding channels extend to a left end surface and a right end surface of the heater tip respectively.

A 3D pen capable of feeding out drawing materials of different colors simultaneously, and a nozzle thereof having a heater tip, a first installation seat and a second installation seat; the heater tip and the first installation seat are fixedly connected with each other; the first installation seat and the second installation seat are fixedly connected with each other; an outer wall of the heater tip has a recessed portion provided with a winding portion for installation of a heating device; a right end of the heater tip is provided with a third insertion portion; the third insertion portion is connected with the first installation seat; at least three feeding channels independent of one another are provided inside the heater tip; two ends of each of the feeding channels extend to a left end surface and a right end surface of the heater tip respectively.