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Kyuseido Kosumi FS Akari

from $650.00

The Kyuseido Kosumi FS is the second fountain pen model from Kyuseido. “Kosumi” is the name of a move from the ancient game of Go, played as an extension of a previous move. The Kyuseido Kosumi FS features a 9 faceted cap design, introducing brutalist design to the elegant round barrel.

The Kyuseido Kosumi FS Akari is part of our exploration of the liminal hours from dusk to dawn. The name “Akari”, which means lamp in Japanese, takes its inspiration from the gas street lamps that came to represent Japanese industrialisation during the Meiji and Taisho periods. The warmth from these lamps would light up the night and illuminate the growing cities of Japan in the late 1800s and early 1900s.

This version of the Kyuseido Kosumi FS uses PEI, also known by the trade name “Ultem”, to achieve a significantly lighter weight than the titanium versions of our flagship pens. PEI is known for its superior thermal stability, chemical resistance, and material strength. The cap and piston knob are made with black PEI, while the barrel is made with transparent yellow PEI, all polished to high gloss. The section is made with titanium and finished with a black PVD coating. As with all of our Kyuseido Kosumi FS, this version is outfit with our proprietary 14k nib and ebonite feeder. This version of the Kyuseido Kosumi FS comes with a gold colour nib to match the pen body.

Color:
Nib:

The Kyuseido Kosumi FS is the second fountain pen model from Kyuseido. “Kosumi” is the name of a move from the ancient game of Go, played as an extension of a previous move. The Kyuseido Kosumi FS features a 9 faceted cap design, introducing brutalist design to the elegant round barrel.

The Kyuseido Kosumi FS Akari is part of our exploration of the liminal hours from dusk to dawn. The name “Akari”, which means lamp in Japanese, takes its inspiration from the gas street lamps that came to represent Japanese industrialisation during the Meiji and Taisho periods. The warmth from these lamps would light up the night and illuminate the growing cities of Japan in the late 1800s and early 1900s.

This version of the Kyuseido Kosumi FS uses PEI, also known by the trade name “Ultem”, to achieve a significantly lighter weight than the titanium versions of our flagship pens. PEI is known for its superior thermal stability, chemical resistance, and material strength. The cap and piston knob are made with black PEI, while the barrel is made with transparent yellow PEI, all polished to high gloss. The section is made with titanium and finished with a black PVD coating. As with all of our Kyuseido Kosumi FS, this version is outfit with our proprietary 14k nib and ebonite feeder. This version of the Kyuseido Kosumi FS comes with a gold colour nib to match the pen body.

  • Ink Capacity: 3.5ml ~ 4.2ml
    Section Diameter: 10.6mm ~ 11.9mm
    Pen Barrel Diameter: 12.6mm ~ 14mm

  • The Pump Piston filler is a high capacity filling mechanism that is powered by a piston unit activated along a piston rod. The rod attaches to the piston unit via three spokes easily and freely. Once the piston rod is secure in the J-lock on the piston unit, the piston unit can be detached from the piston connector at the back of the pen by turning the piston knob counter-clockwise and be pushed towards the section, which expels the air in the barrel.

    For more information visit our page with video instructions here.

  • We recommend the use of dye based fountain pen inks only. Use of pigmented inks or iron gall inks may leave visible residue inside the clear barrel that cannot be removed.

    Please place your pens on a pen tray or a pen rest when not in use at a desk. While the materials used in the Kyuseido Kakari and the Kyuseido Kosumi lines are of the highest quality, vertical impact may cause damage to the pen. Repairs are possible but will carry a repair fee.

    Please do NOT attempt to self-repair. Always contact your Authorized Retailer first if you are having issues with your Pump Piston Filler.