Flexible pen nib for writing purposes

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United States of America Patent

PATENT NO 4838723
SERIAL NO

06485118

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Flexible pen nib (20) for writing instruments includes a rod-like nib body having inner capillary channels (24) for passing ink therethrough. This nib body is a porous rubber-like elastic body having composite-fiber textures obtained by combining a number of longitudinally oriented crimped polyamide fibers (21), with synthetic resin elastomer (22). Those composite-fiber textures form, within the cross-section of the pen nib, random-shaped elements (23) which are arranged in a uniformly random aggregation leaving the capillary channels (24). The capillary channels (24) have an orientation in the axial direction of the pen nib, and provide the pen nib with a predetermined porosity.

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Patent Owner(s)

Patent OwnerAddress
AUBEX CORPORATION31-11 RYOGOKU 4-CHOME SUMIDA-KU TOKYO 130-0026

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ando, Kozo Chiba, JP 26 1184
Enomoto, Tooru Tokyo, JP 1 12
Suzuki, Churyo Ichikawa, JP 3 56

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