Pentel Kabushiki Kaisha

V Spark Co., Ltd.

Other

Chemicos Creations Ltd.

Jit Co., Ltd.

Masayuki Kawasaki

Masamitsu Nagahama

Kazunori Suzuki

Yoshihiro Wada

Takashi Tamura

Kazuo Sakai

Naoki Kato

Koichi Enuma

Takashi Ishihara

Masumi Koishi

Kunio Ito

Masahiko Abe

Shigeru Kido

Fumio Mizoguchi

Makoto Yuasa

Masahiko Yokosuka

Rizwangul Ibrahim

Masaaki Ohsawa

Takehiko Matsuo

Kimio Watanabe

Hiroshi Muramatsu

Hitoshi Takebayashi

Hiroyuki Shiga

A pressure fluctuation buffering mechanism includes a buffer space connected to a brush via a paint flow space (a paint tank and a paint feeder) through which paint flows. The pressure fluctuation buffering mechanism buffers pressure fluctuations in the paint tank by the flow of paint and air between the paint flow space and the buffer space. The pressure fluctuation buffering mechanism includes a first buffer space forming member for forming a first buffer space in the buffer space, and a second buffer space forming member for forming a second buffer space in the buffer space. The paint between the first buffer space and the paint flow space flows more easily than the paint between the second buffer space and the paint flow space.

Pressure fluctuation buffering mechanism and applicator

A writing instrumentincludes a pen tip mechanism, an ink tank, an ink induction mechanism, and a regulator mechanism. The ink tankincludes first and second ink tanksA andB. The pen tip mechanismincludes first and second pen tipsA andB. The ink induction mechanismincludes first and second induction coresA andB. A regulator flow path set around the first induction coreA and the second induction coreB is partitioned into first and second regulator flow paths by the regulator mechanism. The first and second regulator flow paths are temporary accommodation spaces of inks and circulation spaces for sending air from the induction coresA andB to the ink tanksA andB.

Writing instrument

A reactive oxygen species measuring device according to the present invention comprises a reactive oxygen species sensor provided with an electrode assembly capable of detecting the presence of reactive oxygen species or the like in terms of an electric current, a power source means for applying a measuring voltage to the reactive oxygen species sensor, and a reactive oxygen species concentration measuring means for measuring a concentration of the reactive oxygen species or the like from the current detected by the reactive oxygen species sensor. According to the present invention, a concentration of reactive oxygen species or the like such as in vivo or in vitro superoxide anion radical (O.) can be measured reliably, and the entire device can be formed in a smaller size and always mounted to a living body.

Reactive oxygen species measuring device

An ink storage container having a simply configured ink exchange function is provided, whereby the amount of stored ink is increased. An air flow control unit for controlling the flow of air between the inside and outside is disposed in an ink storage unit for storing ink. The air flow control unit includes: a valve element that is formed of an interconnected porous material and allows air to be exchanged between the inside and outside of the ink storage unit according to positive and negative changes in the internal pressure of the ink storage unit; and a liquid repellent membrane that has air permeability and liquid repellency and is disposed on an ink side of the valve element.

Ink storage container

Knock-type liquid applicator

Marker

This invention relates to a writing instrument wherein a temporary ink storage member made of a synthetic resin injection molded article is sandwiched between a pen tip and an ink tank. In the present invention, a flange portion for fitting to a predetermined apparatus, which is positioned around an outer peripheral portion of the temporary ink storage member, is formed integrally with a shaft made of a synthetic resin injection molded article. In embodiments of the invention, the temporary ink storage member is made flexible, the shaft is made of a material which is softer than that of the tip holder, and the tip holder is used as a writing thickness display member. The temporary ink storage member can be used as an ink color display member and a cap is used as an application display member. In other embodiment, the cap can be fitted selectively in accordance with types of writing instruments.

A ceramic nib for a writing instrument having a tapered outer surface which converges toward a writing point end to form a tapered point, and at least one ink passage extending along the length of the nib such that the ink passage is converged along with the convergence of the outer surface of the ceramic tapered point of the nib, the ink passage having a bottom surface which is tapered such that it becomes more narrow towards the tapered point.

Nib for a writing instrument

A planar or plate-like nib for writing instruments has a plurality of separate ink feeding channels which are distributed in the widthwise direction of the planar nib, and a split at the end portion along the entire width thereof. The split provides a suitable flexibility to the nib and desirable writing with a predetermined thickness with clear marginal ends of written lines. Further, the split connects the separate channels with one another at the writing end portion of the nib so that a uniform flow of ink to the writing end portion of the nib is achieved.

Nib for writing instruments

Growing community of inventors

Soka, Japan

Masayuki Kawasaki