Eboya Yatate Black Medium Fountain Pen
Eboya is Japan’s last remaining ebonite manufacturer. Each pen reflects a deep commitment to traditional craftsmanship and material excellence. Ebonite—one of the earliest polymers—is made by vulcanizing natural rubber with sulfur (25–50%), valued for its resilience and natural sheen. Every piece bears the engraving Eboya Made in Tokyo as a mark of authenticity and quality.
Design and inspiration
The Yatate (矢立) takes its name from the traditional Japanese “portable inkstand.” During the Kamakura period, samurai carried a brush in a case with a small ink reservoir known as a yatate. By the Edo period, its use had spread among common people as well. In this Black Medium edition, the solid black finish emphasizes the essential form of the instrument, with the deep gloss characteristic of polished ebonite. The golden clip provides both elegance and practicality, completing the pen’s balanced design.
Functionality and filling system
Fitted with a 14K gold nib tuned by the artisans at Nikko Ebonite Manufacturing, it delivers a smooth, controlled writing experience. It uses a standard international cartridge/converter system. To better appreciate the size and in-hand presence of the medium model, watch Eboya’s official video here: watch on YouTube.
Package contents
• Eboya Yatate Black Medium fountain pen
• Standard international converter
• Ink cartridge (1 unit)
• Eboya enhances the presentation of its fountain pens for Inktraveler, protecting them with a premium paulownia wood case, traditionally used in Japan to preserve the finest writing instruments.
• Warranty
(Photos are for reference; actual colours may vary slightly.)
Technical specifications
- Body material: ebonite
- Colour: solid black
- Size: Medium
- Closed length: 142 mm
- Posted length: 150 mm
- Body diameter: 13.5 mm
- Cap diameter: 15 mm
- Nib: 14K gold
- Filling system: international cartridge/converter
- Clip: gold
- Made in Tokyo, Japan
Care and maintenance
Avoid prolonged exposure to direct sunlight or humidity. Store in a cool, dry place. Wipe occasionally with a soft dry cloth to preserve the ebonite’s natural finish.
Brand history and philosophy
Eboya is the signature brand of Nikko Ebonite Manufacturing, founded in 1952 and recognised as Japan’s last ebonite specialist. Since 2009, Eboya has created its own line of fountain pens, blending technical mastery with refined Japanese aesthetics, and continues to produce durable, comfortable instruments with unmistakable craftsmanship.
“Essential simplicity, fluent lines in every stroke.”
