Mitsubishi Pencil Company, Limited

Seiichi Maruyama

Kazuhiko Furukawa

Takeo Fukumoto

Kiyoshi Iwamoto

Takayuki Ikai

Shigeki Ooba

Hisami Tamano

A writing tool includes a refill having an ink reservoir tube formed to be a straight cylinder whose wall thickness is less than 0.56 mm; and a writing tip or a relay member holding the writing tip attached to a first end of the ink reservoir tube, wherein the refill is detachably attached to a barrel, wherein in the refill, amounting strength between the writing tip or the relay member holding the writing tip and the ink reservoir tube is set higher than a mounting strength between the barrel and a connecting portion of the ink reservoir tube. There is provided a writing tool that can prevent the occurrence of a problem such as leakage of ink at a time of replacement of refills and perform replacement of refills smoothly.

Writing tool provided with refill

An applicator in which an applying body consisting of a brush is surely attached to a front barrel to solve a problem that a part of the brush remains stuck inside the front barrel to cause failure of attachment when the applying body is being attached to the front barrel. The applicator includes a front barrel provided on the front end side of a rear barrel, and an applying body formed of a brush with a flange portion at its rear end and arranged inside the front barrel. A receiving part of the flange portion of the applying body and the inner face of the front barrel are in contact with each other in a non-surface contact manner.

Applicator

To provide a makeup tool that is excellent in design and can perform stable application of a cosmetic, the makeup tool includes a barrel cylinder storing the cosmetic; and an application part attached to one end of the barrel cylinder, in which the application part includes an applying element capable of feeding the cosmetic from the barrel cylinder to apply the cosmetic, and a retainer that holds the applying element, and the retainer is formed of a hard material presenting visibility.

Makeup tool

A ballpoint pen wherein an outer member () covering the outer circumference of a holder () covers a section that reaches as far as a narrowed section () of the holder () and has an outer member tip end portion (). An ink spreads between the writing ball () and the contact section of the writing surface and between the outer member tip end portion () and the contact section of the writing surface, in which the writing ball () and the outer member tip end portion () are in contact with the writing surface at the same time. The relative position of the outer member () and the holder () can be changed from a holder protruding position to a holder retracted position wherein the writing ball () and the tip section of the outer member () can be in contact with the writing surface at the same time.

Ball pen

A writing implement that prevents flow of air into an ink tank and prevents writing failure while allowing for productivity. The writing implement includes a writing implement refill having: an ink tank composed of films storing ink; a joint connected to a tip of the ink tank; and a writing tip connected to a tip of the joint. An inner circumferential surface of the tip of the ink tank covers an outer circumferential surface of a rear end of the joint. A covering member of a ring shape covers from outside an area where the tip of the ink tank covers the outer circumferential surface of the rear end of the joint.

Growing community of inventors

Yokohama, Japan

Seiichi Maruyama