Mitsubishi Pencil Company, Limited

Akira Fukai

Takahiro Osada

Takao Koyama

Yukinori Sawa

Hitoshi Nakamura

Kyoko Kobayashi

Makoto Ono

Tadashi Koriki

Kei Omoto

Atsushi Iwasa

An applicator which includes a rear barrel; an ink occlusion elementaccommodated in rear barrel; an ink occlusion element receiveropposing the front end part of ink occlusion element; a see-through front barrelfitted to the opening of rear barrel, a detection tubeinserted in front barrelfor flowing ink from ink occlusion element; a joint coresupported by detection tubeand flowing out ink from ink occlusion element; and a pen coresupported by detection tubeand disposed on the opposite side of joint corewith a detection spacefrom joint core. Detection tube, joint coreand pen coreare formed into an integral structure. It is possible to exactly grasp the ink end state in a visual manner, based on the presence/absence of ink in detection spaceof detection tube

Applicator

A refill for a correction pen is constructed of a molded article of a polyamide resin obtained from monomers having an aromatic ring or a naphthene ring, a molded article of a blend of two or more kinds of polyamide resins, or a molded article having a multi-layered structure of two or more layers whose innermost layer in contact with the correction fluid is constituted of a polyamide resin. The applying part of a refill unit mounted on a ballpoint type applicator having a pressurizing mechanism in linkage with clicking action is formed by press fitting the rear end of a ballpoint pen tip having a rotatable ball to the attachment portion at the front end of an ink reservoir and a metal tube is squeezed to cover the outer periphery of the attachment portion at the front end of the ink reservoir to which the tip is fitted.

Refill for correction pen and refill unit

Growing community of inventors

Fujioka, Japan

Akira Fukai