A writing device can be configured to provide ink or a colored dye upon a piece of paper or other medium. Such a writing device can include a plurality of separately extendable writing elements and a housing with a plurality of holes upon a terminal end of the housing, each hole providing a dedicated outlet hole for one of the writing elements, the housing comprising one of an elliptical cross section, a circular cross section, and a rounded off square cross section.

The present invention relates to a multifunction pen. It integrates the function of a pen, a mechanical pencil, and a highlighter into a single pen body. A user can use it as a pen, a mechanical pencil, or a highlighter as he or she wishes by simply sliding function buttons near one end of the pen body. The unique seal structure of the present invention prevents the highlighter from drying out when the multifunction pen is not in use, which prolongs the lifespan of the highlighter.

The present invention relates to a multifunction pen. It integrates the function of a pen, a mechanical pencil, and a highlighter into a single pen body. A user can use it as a pen, a mechanical pencil, or a highlighter as he or she wishes by simply sliding function buttons near one end of the pen body. The unique seal structure of the present invention prevents the highlighter from drying out when the multifunction pen is not in use, which prolongs the lifespan of the highlighter.

An instrument includes a body, at least two modules, each separate from the one or other modules, including an operative portion and being movable relative to the body and, for each module, a mechanism for guiding the translation and rotation of the module along the body, the module being movable relative to the body, successively in translation parallel to a first axis and in rotation about a second axis perpendicular to the first axis and which is rigidly connected to the body, between an inoperative configuration in which the operative portion of the module is housed inside the body and a use configuration in which the operative portion of the module projects from the body. The two modules or two of the modules are arranged on either side of a single arm of the body, which extends along the first axis from a base to an end of the body.

A writing device can be configured to provide ink or a colored dye upon a piece of paper or other medium. Such a writing device can include a plurality of selectable writing elements, wherein one of the writing elements comprises marker device comprising an ink reservoir connected to a writing tip.

A writing device can be configured to provide ink or a colored dye upon a piece of paper or other medium. Such a writing device can include a plurality of selectable writing elements, wherein one of the writing elements comprises marker device comprising an ink reservoir connected to a writing tip.

The task is to provide an active stylus pen that can write on a written object, such as paper, like a ballpoint pen or a mechanical pencil.

An active stylus pen transmitting a signal to a chip provided at a tip of a refill of a ballpoint pen.

The task is to provide an active stylus pen that can write on a written object, such as paper, like a ballpoint pen or a mechanical pencil.

An active stylus pen transmitting a signal to a chip provided at a tip of a refill of a ballpoint pen.

A multi-core writing implement includes a shaft cylinder, a retractable mechanism, and a friction member. Inside the shaft cylinder, a plurality of writing bodies is stored. The retractable mechanism selectively protrudes and retracts one of the writing bodies through a front-end opening provided at one end in a lengthwise direction of the shaft cylinder. The friction member is provided at the other end in the lengthwise direction of the shaft cylinder. The writing bodies includes at least one thermochromic writing body in which a reversibly thermochromic ink composition is stored, and at least one non-thermochromic writing body in which a non-thermochromic ink composition is stored. The non-thermochromic ink composition is an oil-based ink composition including a pigment.

A multi-core writing implement includes a shaft cylinder, a retractable mechanism, and a friction member. Inside the shaft cylinder, a plurality of writing bodies is stored. The retractable mechanism selectively protrudes and retracts one of the writing bodies through a front-end opening provided at one end in a lengthwise direction of the shaft cylinder. The friction member is provided at the other end in the lengthwise direction of the shaft cylinder. The writing bodies includes at least one thermochromic writing body in which a reversibly thermochromic ink composition is stored, and at least one non-thermochromic writing body in which a non-thermochromic ink composition is stored. The non-thermochromic ink composition is an oil-based ink composition including a pigment.