Platinum Ink Cartridges

Japan's Platinum Pen and Kuretake use the same type of cartridge: tapered in shape, with an above-average capacity and a distinctive ball bearing closure. All Platinum fountain pens and Kuretake cartridge brush pens are compatible with the ink cartridges and converters in this collection.

Platinum Ink Cartridges

3 products

  • Bottled Fountain Pen Ink

    Choose bottled fountain pen ink if you want the widest color selection and a more refillable writing experience. Bottled ink works with compatible fountain pens using a converter, piston filling system, or other bottle-fill mechanism.

  • Fountain Pen Ink Cartridges

    Choose ink cartridges if you want a simple, convenient refill option with less setup and easier travel. Cartridges are a good choice for everyday writing, school, work, and anyone who wants a faster refill process.

  • Flushing your fountain pen regularly—

    especially when changing ink colors, every six weeks, or before storing the pen—is essential to prevent ink residue buildup, muddy color mixing, and clogged feeds that can lead to scratchy or inconsistent writing.

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