About The Hoshikage Lost Planets
The Kyuseido Kakari FS Hoshikage Lost Planets is the embodiment of how heritage meets modernity at Kyuseido. Using the Kyuseido Kakari FS as a base for the urushi treatment, Kyuseido and Urushi Notes blend the aesthetic of the futuristic and elegant design of the Kyuseido Kakari FS and the traditional beauty and warmth of urushi lacquer. The result is a boundary pushing design that takes advantage of the Pump Piston Filler’s full body ink capacity and raden’s light refracting properties. While the design is stunning as it is, its true potential is when ink is drawn into the pen barrel to create an opaque background for light to refract the colors of the raden in all its glory.
Normally, raden is extremely colorful and bright. This is a natural phenomenon that occurs when light hits the shell and refracts the colors of the shell into our eyes. For this pen, we instead opted to have raden inlaid into transparent urushi, which lacks the opaque backing that raden is traditionally done on and allows light to partially pass through the shell. This reduces the refracted colors of the shell and gives the raden a holographic look. The potential of this pen only reveals itself when filled with ink, which gives the raden the opaque background needed to fully refract the colors of the shell into our eyes.
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Capped Weight: 46.6g
Uncapped Weight: 30.8g
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.
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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.

