Mitsubishi Pencil Kabushiki Kaisha

Mitsubishi Pencil Company, Limited

Casio Computer Co., Ltd.

Takahiro Osada

Yoshihisa Suda

Toshimi Kamitani

Kunitaka Yamada

Yasunari Kabasawa

Kouji Nishimura

Kazuhiro Ami

Yukinori Sawa

Kozi Nishimura

Suguru Yazawa

Takao Koyama

Akira Fukai

Yasuaki Ogiwara

Atsushi Sato

Atsushi Iwasa

Yoko Aoki

Tatsuya Mizoguchi

Yasunari c/o IntellProperty Dept Casio Computer Co Ltd Kabasawa

A fuel container includes a container body having a fuel discharge port and an interior spacing. A body of liquid fuel is filled in the interior spacing of the container body. Follower units are provided in the container body, in contact with at least a part of an end of the body of the liquid fuel. Solid follower auxiliary members are interposed between the follower units and the body of liquid fuel to be optically detectable.

Fuel container, fuel residual amount measurement device, and fuel residual amount measurement method

The fuel reservoir for a fuel cell is a fuel reservoir detachably connected with a fuel cell main body, and it is equipped with a fuel-storing vessel of a tube type for storing a liquid fuel and a fuel discharge part; the fuel discharge part is provided with a valve for sealing communication between the inside and the outside of the above fuel-storing vessel; and a follower which seals the liquid fuel and moves as the liquid fuel is consumed is disposed in the rear end part of the liquid fuel stored. The valve assumes a structure in which a slit is formed in an elastic material and a structure in which a valve member is pressed by a resilient body.

Fuel reservoir for fuel cell

A fuel cell is equipped with a fuel cell main body, a liquid fuel-storing tank for storing a liquid fuel and a fuel-supplying member which has a penetrating structure and is connected with the liquid fuel-storing tank and which supplies the liquid fuel to the liquid fuel main body, wherein the liquid fuel-storing tank is provided with a liquid fuel reservoir comprising a cylindrical fuel-storing vessel for storing the liquid fuel, a fuel discharge part provided at a lower part of the fuel-storing vessel and having a fuel discharge valve and a follower which is disposed at a rear end of the liquid fuel stored in the fuel-storing vessel and which moves as the liquid fuel is consumed, a housing box member which encompasses at least a part of the liquid fuel reservoir via a space part in the periphery of the liquid fuel reservoir and whose rear end part is closed and pressurized gas which is filled in the space part.

Fuel-storing tank for fuel cell

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

The fuel reservoir for a fuel cell is a fuel reservoir detachably connected with a fuel cell main body, and it is equipped with a fuel-storing vessel of a tube type for storing a liquid fuel and a fuel discharge part; the fuel discharge part is provided with a valve for sealing communication between the inside and the outside of the above fuel-storing vessel. The valve assumes a structure in which a slit is formed in an elastic material and a structure in which a valve member is pressed by a resilient body, and is opened by inserting a fuel-supplying member.

Method of preventing leak of liquid fuel

A liquid fuel is contained in a fuel container, and the liquid fuel is discharged from a fuel outlet. Further, a water is contained in a water containing pipe provided in the fuel container, and the water is discharged from a water outlet to the outside. Air taken into the fuel container through a dustproof filter attached to a rear lid portion of the fuel container is discharged to the outside from an oxygen source outlet through an oxygen source pipe. The fuel outlet, oxygen source outlet and water outlet are provided in a front outer surface of the front lid portion.

Fuel container

A direct methanol fuel cell comprises a multiple number of connected unit cells, each composed of a fuel electrode element of a microporous carbon material, an electrolyte layer formed on the outer surface of the fuel electrode element, an air electrode layer formed on the outer surface of the electrolyte layer, wherein each unit cell is supplied with fuel from a fuel reservoir through a fuel feeder having an infiltration structure coupled therebetween.

Direct methanol fuel cell

In order to provide a fuel reservoir for a small-sized fuel cell which is suitably used as an electric power source for portable electronic appliances such as cellular phones, note type personal computers and PDA, assumed is a structure in which a fuel reservoir for a fuel cell detachably connected with a fuel cell main body is equipped with a fuel-storing vessel for storing a liquid fuel, a fuel discharge part and a follower which seals the liquid fuel and moves as the liquid fuel is consumed and into which a follower auxiliary member is inserted at a rear end of the liquid fuel, wherein the follower auxiliary member has no fluidity and is insoluble in the liquid fuel, and it has a cross-sectional area of 50% or more based on a cross-sectional area of the fuel-storing vessel in a diameter direction.

A medium for electrophoretic display using a liquid for electrophoretic display which can reversibly change a visible state by action of an electric field includes a medium comprising each independent structures of microcapsules or cells filled with a liquid for electrophoretic display comprising at least alkylpolyetheramine having a structural unit represented by a specific structural formula, one or more kinds of fine particles, a dispersant and a dispersion liquid medium, wherein the fine particles contain fine particles subjected to surface treatment for making lipophilic. Also, an electrophoretic display device includes a display device comprising a pair of substrates in which a light-transmitting electrode is formed on at least one substrate and the medium for electrophoretic display described above between the substrates. The electrophoretic display medium and the electrophoretic display device each using the above display liquid for electrophoretic display have a high contrast on a display face and can display the contrast with high reliability even in repetitive display, and they are excellent as well in a response.

Liquid for electrophoretic display, display medium and display device using the same

Provided is a writing instrument in which a pen tip comprising a fibrous feed or a plastic feed is coated with a coating agent comprising a substance providing a cap-off property, wherein a fluorine base surfactant and/or a silicone base surfactant are added to an ink for the above writing instrument, and/or a substance which is solid at room temperature and has a solubility of 5% or less in an ink solvent at room temperature and which has a polar functional group is added to the coating agent, whereby the writing instrument having an excellent cap-off performance can be obtained.

Writing utensil having excellent cap-off performance

A marking pen having an excellent cap-off performance which comprises at least a colorant, a solvent and a resin and, if necessary, an erasability-providing agent as ink components and in which a pen tip comprising a fibrous feed or a plastic feed is coated with a coating agent comprising a substance providing a cap-off property, wherein the above coating agent comprises petroleum waxes comprising hydrocarbons having side chains as a principal component (50% by weight or more). Preferably, the above petroleum waxes comprising hydrocarbons having side chains as a principal component have a melting point of 63&#xb0; C. or lower and are solid at room temperature.

Marking pen with excellent cap-off performance

A writing instrument equipped with an exchangeable inner pen filled with an ink containing a solvent having a vapor pressure of 1 to 50 mm Hg (20&deg; C.) in a writing instrument main body which is a barrel part, wherein the inner pen described above has a pen tip comprising a fiber feeder or a plastic feeder, and the above pen tip is coated with a substance having a vaporization-inhibiting action in an amount of 0.01 to 20% by weight in terms of a weight ratio based on the pen tip. It is more effective to further add a substance having a vaporization-inhibiting action to the ink. The substance having a vaporization-inhibiting action includes glycerin derivatives, polyoxyethylenesorbit fatty acid esters, alkyl phosphates, waxes and lecithin.

Writing utensil

A solid adhesive composition which has an excellent applying performance even after an applying part of the solid adhesive is left to stand in the atmosphere for a long time and which is excellent in a cap-off performance and which comprises at least an adhesive component, a gelling agent and a solvent, wherein contained in the above composition are at least one selected from the group consisting of waxes such as paraffin waxes and olefin waxes which are a solid at room temperature and have a solubility of 20% or less in the solvent at room temperature and/or a substance absorbing moisture contained at least in the atmosphere and/or the adhesive composition to form an evaporation-inhibiting film.

Growing community of inventors

Fujioka, Japan

Takahiro Osada