Pentel Kabushiki Kaisha

Pentel of America, Ltd.

Hisao Fukui

James T Sener

Takashi Ishikawa

Tetuo Taguchi

Kevin J Costello

Dave Mathieu

Akinori Furuichi

Yasushi Miyashita

Masaru Kobayashi

A variable grip structure has a shaft body formed of plural shaft portions that are rotatable relative to one another. An elastic finger-grip member encircles the shaft body and has its forward and rearward ends fixed to different shaft portions so that relative rotation of the shaft portions elastically twists the finger-grip member about the longitudinal axis of the shaft body. This construction makes it possible to adapt the shape of the finger-grip member to the hand size and shape and the preference of the user.

Variable grip structure

This is a retractable-nib writing tool having a retractable writing body in a shaft tube and having a sealing lid and a sealing tube which seal the writing nib of the writing body in association with the forward and backward movements of the writing body. In this retractable-nib writing tool, the sealing lid and a guide tube fixed to the writing body are linked by a plurality of thin line portions, the sealing lid and thin line portions are formed integrally, and the sealing lid is opened and closed relative to the sealing tube by the forward and backward movements of those thin line portions. This retractable-nib writing tool can securely seal, when the writing body is retracted, the writing nib at the tip by the sealing lid and the sealing tube and thereby prevent the writing body from drying.

Retractable writing material

Writing instrument

An inking system comprising an ink vessel removably mounted on a nose portion of a wire dot matrix printer. The ink vessel is stationarily connected to a capillary path member for transferring ink reserved within the ink vessel to the rear surface of a bearing plate which is disposed at the front end of the nose portion of the printer for supporting printing ends of printing wires. The ink vessel accommodates therein an ink absorbent member such as synthetic fibers in contact with the upper end portion of the capillary path member, and reserves ink in an absorbed state in the ink absorbent member. At least one slit is formed in the lower end portion of the capillary path member such that the slit permits a group of the printing wires to extend therethrough without causing any forced contact between the respective printing wire and the lower end portion. The lower end portion wetted with the ink is forcedly contacted with the rear surface of the bearing plate by pressing means disposed within the nose portion. The ink is transferred to each of the printing wires via the bearing plate. The ink supply to the printing wires during the printing operation can be made speedily and appropriately by adjusting the bulk factor of the capillary path member within the range less than that of the ink absorbent member.

Inking system for wire dot matrix printer

Growing community of inventors

Tokyo, Japan

Hisao Fukui