Abstract: An improved nib for writing with ink on media that comprises a tube having a proximal opening, a slanted distal opening, an interior wall and an exterior wall, an exposed writing tip at a distal end of the nib, wherein the tip has a groove extending from the tip along at least a portion of the interior wall, and a slit extending from the tip along a part of the nib, wherein the tip is made of a ceramic material.

Abstract: A writing instrument comprising: a main body having a first end, a second end and a longitudinal axis extending in a longitudinal direction through the first and second ends; a writing tip disposed at the first end of the main body; an ink-containing cartridge; a rear body comprising an elongate housing having a first end a second end and an access opening at the first end allowing the ink-containing cartridge to be inserted into or removed from the housing, the housing extending in a loading direction between the first and second ends of the elongate housing; and an articulation means connecting the main body and the rear body. The articulation means allows the rear body to pivot with respect to the main body about an axis of articulation perpendicular to the longitudinal axis, between a loading or open position in which the access opening is rotated away from the longitudinal axis of the main body and a closed position in which the longitudinal direction and the loading direction substantially coincide.

Abstract: A multiangular pen comprising a multiangular pen nib; a pen core having holder pieces fitted the surface of the pen nib and a rod-like connector formed integral to the base end of the holder pieces, said pen core being made by tamping and molding a fibers material, having liquid permeability and serving to hold the pen nib with its holder pieces fitted the surface of the pen nib; and a penholder for housing a pen nib assembly of the pen nib and the pen core; wherein the body of said pen core is inserted into the ink holding member.

Abstract: This invention presents a multiangular pen in which a pen nib is inserted and housed in a pen nib housing hole provided on a pen nib holder sleeve. Further, a push sleeve having a guide hole extending in its longitudinal direction and communicating with the pen nib housing hole is fitted into the pen nib housing hole at the back end side of the pen nib holder sleeve to support the pen nib. In the guide hole and the pen nib housing hole, an ink introducing core is inserted.

Abstract: A pen nib construction comprising a pen nib and a holder in which the pen nib is fitted. The pen nib is provided at its pointed end with long splits and short chinks which are disposed alternately and at equal angular distances. The pen nib contains an ink containing portion near its pointed end. One end of the holder is divided into ink feed tongues which are in contact with the outer surface of the pen nib. At least one of the ink feed tongues is provided on its inner surface with a groove which continues at one end thereof to one of the splits and at the other end thereof to an ink reservoir of the pen. Thus, ink is supplied from the ink reservoir to the ink containing portion mainly or only through the groove and the split, in preference to or instead of through an ink channel which may or may not be provided in the center of the pen nib. From the ink containing portion, ink flows out through the chinks and the splits onto the paper.

Abstract: A fountain pen in which the resiliency of the pen tip is continuously variable. The pen tip and core are surrounded at their mounting end by a pen core cover. A guide slot is formed in a guide portion of the cover in which is positioned a flexible tongue-shaped retaining member which arches from the slot towards the pen point. A knob extends from the mounting portion of the retaining member into a spiral groove in the inner surface of a rotatable cylindrical adjustment sleeve. Rotation of the sleeve moves the retaining member in and out to thereby adjust the resiliency of the tip.