




Mochiri & Co. Japan Kokuon (黒音) Edition Fountain Pen
静けさの中の精度 (Precision within silence)
Nib
精密な書き味 (Precision in every stroke)
Precision-crafted Fine (F) nib engineered with a distinct geometry to deliver controlled ink flow and tactile feedback.
Designed for writers who appreciate measured resistance, producing a subtle, satisfying writing sound with every stroke.
Balance & Weight
均衡された設計 (Perfectly balanced design)
Carefully calibrated to an approximate 32g capped weight, offering a stable and grounded writing experience.
Optimized to maintain control and reduce fatigue during extended writing sessions while preserving a deliberate, responsive feel.
Design
黒の美学 (The aesthetics of black)
Full-metal construction finished in a deep matte black form, defined by a refined, slightly tapered silhouette.
Minimal, precise, and understated — built to reflect discipline, control, and quiet authority.
Writing Performance
音と共に書く (Write with sound)
Engineered for consistent ink delivery with controlled glide, not overly smooth — allowing for enhanced precision and feedback.
Produces clean, confident strokes with a distinct acoustic character across journaling, drafting, and signatures.
Grip
長時間の快適さ (Comfort for extended writing)
Ergonomically contoured grip section designed for precision handling and long-duration comfort.
Supports a firm yet relaxed hold, enabling controlled writing without strain.
Specifications
製品仕様 (Product specifications)
- Material: Metal (Matte Black Finish)
- Nib: Fine (F) Precision Nib
- Cap Type: Screw Mechanism
- Ink System: Screw Ink Converter / Standard Cartridges
- Diameter: 18 mm
- Capped Length: 148 mm
- Weight (with cap): ~32 g
- Quantity: 1 Fountain Pen
Designed by Mochiri & Co. Japan
設計美と機能性の融合 (Fusion of design and functionality)
Crafted with a focus on precision, balance, and the sound of writing — where every stroke is felt, heard, and controlled.
Manufacturing
品質管理のもと製造 (Manufactured under strict quality control)
Manufactured by Jinhao in PRC under Mochiri design specifications.