The part for mounting on the finger is provided so as to be integral with a linking member; by means of building-in, folding, inserting and removing, and winding, the holder is made deformable to a carried condition when not in use; a necessary shortest dimension of the writing tool in the written condition is divided into at least two sections, i.e., an axis body 1 and a cap 2; and then, the axis body 1 and the cap 2 are overlapped with each other by means of folding or storing to thereby shorten the writing tool in a retained condition, and the writing tool in the written condition is reversibly movable in a predetermined range to thereby make an angle of the writing tool adjustable.

The part for mounting on the finger is provided so as to be integral with a linking member; by means of building-in, folding, inserting and removing, and winding, the holder is made deformable to a carried condition when not in use; a necessary shortest dimension of the writing tool in the written condition is divided into at least two sections, i.e., an axis body 1 and a cap 2; and then, the axis body 1 and the cap 2 are overlapped with each other by means of folding or storing to thereby shorten the writing tool in a retained condition, and the writing tool in the written condition is reversibly movable in a predetermined range to thereby make an angle of the writing tool adjustable.

A magnetic pen can be used with a magnetic panel. The magnetic pen includes a body with an end portion. A holder made of a magnetic material is attached to the end portion and an internal space is formed in the holder. A magnet having an S pole and an N pole is arranged in the internal space of the holder so that the S pole and the N pole are opposite the magnetic panel.

A magnetic pen can be used with a magnetic panel. The magnetic pen includes a body with an end portion. A holder made of a magnetic material is attached to the end portion and an internal space is formed in the holder. A magnet having an S pole and an N pole is arranged in the internal space of the holder so that the S pole and the N pole are opposite the magnetic panel.

A writing implement with a high voltage circuit and an evacuated noble glass globe attached that responds to human touch is disclosed. The apparatus utilizes a mini high voltage circuit and mini globe to produce the plasma.

A writing implement with a high voltage circuit and an evacuated noble glass globe attached that responds to human touch is disclosed. The apparatus utilizes a mini high voltage circuit and mini globe to produce the plasma.

A writing implement configured to emit light for altering the appearance of a substrate including at least one photochromic material, wherein the writing implement includes: an elongate body portion enabling a user to grip the writing implement, wherein the body portion comprises a proximal end and a distal end; a first light source configured to emit light from the proximal end, wherein the emitted light comprises at least a first colour component within a first wavelength range, wherein the first wavelength range at least partially corresponds to a deactivation spectrum of a first photochromic material of the substrate; and a controller configured to receive input from a user, and to generate signals for controlling the first light source based on the received user input.

A writing implement configured to emit light for altering the appearance of a substrate including at least one photochromic material, wherein the writing implement includes: an elongate body portion enabling a user to grip the writing implement, wherein the body portion comprises a proximal end and a distal end; a first light source configured to emit light from the proximal end, wherein the emitted light comprises at least a first colour component within a first wavelength range, wherein the first wavelength range at least partially corresponds to a deactivation spectrum of a first photochromic material of the substrate; and a controller configured to receive input from a user, and to generate signals for controlling the first light source based on the received user input.

The present invention concerns a solvent-free photocrosslinkable writing ink advantageously for a pen, comprising, as a percentage by weight relative to the total weight of the ink: abetween 40 and 75% of a photocrosslinkable acrylate and/or methacrylate oligomer, bbetween 1 and 55%, optionally, of a photocrosslinkable acrylate and/or methacrylate monomer, cbetween 0.5 and 6% of a photoinitiator, dbetween 1 and 10% of a dye, advantageously a basic dye, and ebetween 0 and 10% of an additive.

It further concerns a method for securing a writing medium using said ink, the crosslinked ink obtained by crosslinking said ink and a pen for photo-crosslinkable ink comprising said ink.

The present invention concerns a solvent-free photocrosslinkable writing ink advantageously for a pen, comprising, as a percentage by weight relative to the total weight of the ink: abetween 40 and 75% of a photocrosslinkable acrylate and/or methacrylate oligomer, bbetween 1 and 55%, optionally, of a photocrosslinkable acrylate and/or methacrylate monomer, cbetween 0.5 and 6% of a photoinitiator, dbetween 1 and 10% of a dye, advantageously a basic dye, and ebetween 0 and 10% of an additive.

It further concerns a method for securing a writing medium using said ink, the crosslinked ink obtained by crosslinking said ink and a pen for photo-crosslinkable ink comprising said ink.