Abstract: A liquid supplying apparatus having a tank with a hole, a reservoir chamber to store a portion of liquid in the tank, and a flow path to store another portion of the liquid in the tank, is provided. The flow path connects the reservoir chamber and the hole. The flow path has a first funnel section to reduce a cross-sectional area of a part of the flow path. The first funnel section is located at a position equal to or higher than a surface of a predetermined maximum amount of the liquid storable in the tank in a usable posture. The first funnel section creates a meniscus with the liquid stored in the tank in an X1-rotated posture, in which the tank is rotated about a first axis by a first angle from the usable posture.

Abstract: There is provided an inkjet recording device including a head, a support member, a storage portion, a valve, an actuator, and a controller. The head includes a nozzle and is configured to eject ink from the nozzle. The support member supports the head. The storage portion storing therein ink. The storage portion has a part positioned above the nozzle. The storage portion has an air communication opening allowing an interior of the storage portion to be communicated with an outside of the storage portion. The valve is movable between an opening position in which the valve opens the air communication opening and a closing position in which the valve closes the air communication opening. The actuator is configured to move the valve. The controller configured to control, while the head is ejecting ink from the nozzle toward a recording medium, the actuator to maintain the valve at the closing position.

Abstract: A liquid discharging apparatus, having a head, a reservoir section including a liquid reservoir chamber and an atmosphere communication path, a liquid flow path connecting the head with the liquid reservoir chamber, a switching assembly to switch states of the atmosphere communication path between a connecting state and a disconnecting state, and a controller, is provided. The controller is configured to control the switching assembly to switch the states of the atmosphere communication path from the connecting state to the disconnecting state; after switching the states of the atmosphere communication path, control the head to discharge the liquid; and after switching the states of the atmosphere communication path, and in response to a predetermined connection condition being satisfied, control the switching assembly to switch the states of the atmosphere communication path from the disconnecting state to the connecting state.

Abstract: The present invention provides a composition containing an electron-donating polymer (D) and an electron-withdrawing polymer (A), wherein the electron-donating polymer (D) has a constitutional unit represented by the following formula (1a), Y1a in the following formula (1a) is a divalent group represented by the following formula (3a), and the electron-withdrawing polymer (A) has a constitutional unit represented by the following formula (4a): wherein the symbols in the formulas are as described in the DESCRIPTION.

Abstract: When a metal catalyst is used as a catalyst in a catalyst layer of a polymer electrolyte fuel cell, improvement in catalytic activity and improvement in durability of the metal catalyst are intended. The catalyst composition of the present invention comprises a metal catalyst, a carbon material having a nitrogen-containing group on which the metal catalyst is carried, and an ionomer.

Abstract: Provided is a material which can be used in a catalyst layer for a fuel cell and exhibits proton conductive properties. The present invention is directed to a carbon-based solid acid comprising a carbon material having a sulfonic acid group through a linker.

Abstract: This is to provide a non-halogen containing compound excellent in proton conductivity and capable of suitably being used for a polymer electrolytic fuel cell The compound of the present invention has a structure represented by the following general formula (I). (In the above-mentioned general formula (I), “l” and “n” are molar fractions when l+n=1.0, and 0?l<1.0 and 0<n?1.0, A represents a structure represented by the following general formula (II) or (III), B represents a structure represented by the following general formula (VII), the respective structural units are random copolymerized, and at least one benzene ring in the formula (I) has at least one sulfo group.

Abstract: A composition containing electron-donating polymer (D) having a structure represented by the following formula (1), and electron-withdrawing polymer (A) having a structure represented by the following formula (2): wherein definition of the symbols are as described in the DESCRIPTION is provided.

Abstract: This is to provide a non-halogen containing compound excellent in proton conductivity and capable of suitably being used for a polymer electrolytic fuel cell The compound of the present invention has a structure represented by the following general formula (I). (In the above-mentioned general formula (I), “l” and “n” are molar fractions when l+n=1.0, and 0?l<1.0 and 0<n?1.0, A represents a structure represented by the following general formula (II) or (III), B represents a structure represented by the following general formula (VII), the respective structural units are random copolymerized, and at least one benzene ring in the formula (I) has at least one sulfo group.

Abstract: The present invention provides a composition containing an electron-donating polymer (D) and an electron-withdrawing polymer (A), wherein the electron-donating polymer (D) has a constitutional unit represented by the following formula (1a), Y1a in the following formula (1a) is a divalent group represented by the following formula (3a), and the electron-withdrawing polymer (A) has a constitutional unit represented by the following formula (4a): wherein the symbols in the formulas are as described in the DESCRIPTION.

Abstract: Provided are: a charge-transporting varnish that contains a charge-transporting substance comprising an oligoaniline derivative represented by formula (1), a charge transporting substance that does not contain fluorine atoms, and an organic solvent; and an organic electroluminescent element including a thin film obtained from the varnish. (In the formula: R1 represents a hydrogen atom or an alkyl group that may be substituted; R2 to R10 each independently represent a hydrogen atom, a halogen atom, a nitro group, a cyano group, or an alkyl group, alkenyl group, alkynyl group, aryl group or heteroaryl group that may be substituted; A represents a prescribed fluorine atom-containing substituent; and k represents an integer from 1 to 20.

Abstract: Aniline derivatives such as those represented by the formula shown, for example, have good solubility with respect to organic solvents, and are able to provide an organic electroluminescent element having excellent luminance characteristics when a thin film containing said aniline derivatives is used as a charge transporting substance in a hole injection layer. (In the formula, DPA represents a diphenylamino group.

Abstract: An organic/inorganic composite hydrogel can be prepared only through mixing at a room temperature and that has high modulus of elasticity and a self-supporting property that allows a shape to be maintained in water, and a method produces the hydrogel. A hydrogel forming composition that is capable of forming a hydrogel having a self-supporting property, includes: a water-soluble organic polymer having an organic acid structure, an organic acid salt structure, or an organic acid anion structure; a silicate salt; a dispersant for the silicate salt; and a compound having or generating divalent or higher valent positive charge; a hydrogel formed of the composition, and a method for producing the hydrogel.

Abstract: Provided is a charge-transporting varnish which comprises an amide compound containing fluorine atoms and represented by formula (1) and a charge-transporting substance. [In the formula, Ar1 represents a group represented by any of formulae (1-1) to (1-9) and Ar2 and Ar3 each represent a given fluorinated aryl or aralkyl group.

Abstract: provided is a composition containing electron-donating polymer (D) having a structure represented by the following formula (1), and electron-withdrawing polymer (A) having a structure represented by the following formula (2): wherein definition of the symbols are as described in the DESCRIPTION.

Abstract: Provided is a fluorine atom-containing compound represented by formula (1) below (In the formula, Z represents a predetermined divalent group, each Ar independently represents a predetermined aromatic ring-containing group, and each ArF independently represents a predetermined fluorine atom-containing aryl group).

Abstract: The invention provides a charge-transporting varnish, containing a charge-transporting substance formed of an indolocarbazole represented by the following formula (1), a dopant substance, and an organic solvent.

Abstract: Provided is a fluorine atom-containing compound represented by formula (1) below (In the formula, Z represents a predetermined divalent group, each Ar independently represents a predetermined aromatic ring-containing group, and each ArF independently represents a predetermined fluorine atom-containing aryl group).

Abstract: Aniline derivatives such as are represented by, e.g., the formula have excellent solubility in organic solvents and make it possible to obtain an organic EL element having exceptional brightness characteristics when a thin film containing these derivatives as a charge transport material is applied to a hole injection layer.

Abstract: Provided is an aniline derivative represented by formula (1). (In formula (1), R1 represents an alkyl group, an alkenyl group, an alkynyl group, an aryl group having 6-20 carbon atoms, a heteroaryl group, or a group represented by formula (2), and R2-R55 independently represent a hydrogen atom, a halogen atom, a nitro group, a cyano group, an aldehyde group, a hydroxy group, a thiol group, a carboxylic acid group, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heteroaryl group, etc.