A pencil holder for storing a pencil includes a hollow basic body which has an elongated interior that opens out in an insertion opening for partially receiving the pencil. In the region of the insertion opening the basic body merges into a least one retaining tongue which juts out from the basic body in the longitudinal direction and which is set up for the purpose of holding the pencil on the basic body as a result of clamping.

A writing instrument including a hollow cylindrical barrel with a first segment that is connected to a second segment, a tip located at a first longitudinal end of the barrel, a cap connected to the second segment that covers a second longitudinal end of the barrel and includes a clip, an ink cartridge, a battery, a light emitting device, a first actuator to extend and retract the writing end of the ink cartridge, and a second actuator to activate or deactivate the light emitting device. The light emitting device is located in the tip, at the end of the clip, or within the segmented barrel. The light is directed towards a writing surface based on proximity or directional lighting whereby the location of the light emitting device directs the light to the writing surface from the clip or down the length of the barrel.

Provided is a writing instrument or an applicator using resin parts formed, by way of two-color molding, to have an optimal guiding clearance between slide members. A plurality of resin molded parts is included. At least one of the plurality of resin molded parts is formed as a primary molding, and at least another one of the resin molded parts is formed as a secondary molding, by way of two-color molding, using a portion of a surface of the primary molding. The primary molding and the secondary molding are separated to be used as independent members. In this case, the primary molding and the secondary molding are preferably configured to slide against each other by each separating portion.

Provided is a writing instrument or an applicator using resin parts formed, by way of two-color molding, to have an optimal guiding clearance between slide members. A plurality of resin molded parts is included. At least one of the plurality of resin molded parts is formed as a primary molding, and at least another one of the resin molded parts is formed as a secondary molding, by way of two-color molding, using a portion of a surface of the primary molding. The primary molding and the secondary molding are separated to be used as independent members. In this case, the primary molding and the secondary molding are preferably configured to slide against each other by each separating portion.

A stylus includes a casing comprising an opening, a push rod disposed in the casing, a pen head fixed on an end of the push rod, a reflector coupled to the push rod, and a linkage mechanism disposed in the casing. At least a part of the pen head is exposed of the casing. An end of the linkage mechanism is fixed on the casing. The linkage mechanism connects reflector to the push rod, such that when the pen head is pushed into the casing, a moving distance of the reflector is greater than that of the pen head, and the reflector is exposed of the opening.

A modular combination toy and desktop writing accessory apparatus comprising a plurality of structural elements each having at least one nodal connector portion to which a complementary connector portion of another structural element can be coupled. The structural elements can be assembled into a barrel-like form that is configured with a passageway for carrying a writing component of the invention. The writing component can be a pen, pencil, marker, crayon, eraser or the like. The modular combination toy and writing instrument has multiple functions in playtime as well as in everyday desk-bound activities.

An improved structure of writing instrument includes a pen body including a pen barrel and an ink refill and tip mounted in the pen barrel, a positioning device including a retaining ring mounted in the pen barrel and a positioning protrusion located at the retaining ring and extended outside the pen barrel, and a pen clip having a clickable top end thereof coupled to the pen body that controls the ink refill and tip between an extended position and a retracted position and an opposing bottom end thereof provided with a U groove that is coupled with the positioning protrusion of the positioning device to guide the pen clip to slide up and down in relation to the positioning protrusion stably and smoothly, and prevent deviation or loosening.

The heating eraser for removing thermally changeable ink comprises a heating eraser unit that removes or changes a color by instantaneously applying heat at 50 to 65 C. as a color changing temperature range of a phase transition material selectively along a handwriting written or drawn by a writing instrument using the thermally changeable ink containing thermally changeable fine particles of 10 wt % to 70 wt % including a core portion containing the transition material including a phenol-based compound containing an aliphatic functional group having carbon atoms of 6 or more and a shell layer covering the core portion and made of a polymer resin on a substrate.

The heating eraser for removing thermally changeable ink comprises a heating eraser unit that removes or changes a color by instantaneously applying heat at 50 to 65 C. as a color changing temperature range of a phase transition material selectively along a handwriting written or drawn by a writing instrument using the thermally changeable ink containing thermally changeable fine particles of 10 wt % to 70 wt % including a core portion containing the transition material including a phenol-based compound containing an aliphatic functional group having carbon atoms of 6 or more and a shell layer covering the core portion and made of a polymer resin on a substrate.

A pen holder is provided for storing a first pen or marker, and a second pen or marker. The pen holder comprises a first base body which extends in a first longitudinal direction and delimits a first receiving space for at least partially receiving the first pen, and a second base body which extends in a second longitudinal direction and delimits a second receiving space for at least partially receiving the second pen. A coupling element and a method of using a coupling element are also provided.