Abstract: A toner including toner particles, each of which comprising a charging component, a polymer having a partial structure represented by the following formula (1) as the side chain, and a colorant: (R1 represents a hydroxyl group, a carboxyl group, an alkyl group having 1 to 18 carbon atoms, or an alkoxyl group having 1 to 18 carbon atoms; R2 represents a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 18 carbon atoms, or an alkoxyl group having 1 to 18 carbon atoms; m represents an integer of 0 to 3; if m is 2 or 3, R1 can be each independently selected; n represents an integer of 1 to 3; and * represents a coupling site in the polymer.

Abstract: Provided is a toner having high charging rapidity to reach a sufficient charging amount in a short time, high stability of charging from the initial stage to a time when a large amount of sheets is printed out, and high stability of charging under a high temperature and high humidity. In a toner including toner particles, each of which contains at least a binder resin, a colorant, and a charge controlling resin, the charge controlling resin is a copolymer of a structure A having at least a specific salicylic acid derivative structure and a structure B having sulfonic acid or sulfonic acid ester as a substituent.

Abstract: Since a charge amount of a toner and a charge rise characteristic thereof are liable to be influenced by the change in temperature and humidity condition, the change in image density occurs in printing, and in particular, in high temperature and high humidity environment, inconveniences, such as image fogging, occur due to non-uniformity of the charge amount distribution. In a toner including toner particles obtained by dispersing a monomer composition containing a polymerizable monomer and a colorant in an aqueous medium to form droplets and polymerizing the polymerizable monomer in the droplets, the toner particles contain a polymer formed by a polymerization reaction of the polymerizable monomer and a metal compound having a vinyl group.

Abstract: Provided is a toner having high charging rapidity to reach a sufficient charging amount in a short time, high stability of charging from the initial stage to a time when a large amount of sheets is printed out, and high stability of charging under a high temperature and high humidity. In a toner including toner particles, each of which contains at least a binder resin, a colorant, and a charge controlling resin, the charge controlling resin is a copolymer of a structure A having at least a specific salicylic acid derivative structure and a structure B having sulfonic acid or sulfonic acid ester as a substituent.

Abstract: A toner including toner particles, each of which comprising a charging component, a polymer having a partial structure represented by the following formula (1) as the side chain, and a colorant: (R1 represents a hydroxyl group, a carboxyl group, an alkyl group having 1 to 18 carbon atoms, or an alkoxyl group having 1 to 18 carbon atoms; R2 represents a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 18 carbon atoms, or an alkoxyl group having 1 to 18 carbon atoms; m represents an integer of 0 to 3; if m is 2 or 3, R1 can be each independently selected; n represents an integer of 1 to 3; and * represents a coupling site in the polymer.

Abstract: A toner including toner particles containing a binder resin, a colorant and a charge controlling agent, wherein the charge controlling agent is a polymer A having a structure “a” represented by formula (1), and the polymer A has a weight average molecular weight (Mw) of 1,000 to 100,000: wherein R1 represents a hydroxyl group, a carboxyl group, an alkyl group having 1 to 18 carbon atoms, or an alkoxyl group having 1 to 18 carbon atoms, R2 represents a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 18 carbon atoms, or an alkoxyl group having 1 to 18 carbon atoms, and g represents an integer of 1 to 3 and h represents an integer of 0 to 3, wherein when h is 2 or 3, R1 can be each independently selected.

Abstract: A method of producing an organic semiconductor device is provided in which a layer composed of an organic semiconductor having excellent crystallinity and orientation in a low-temperature region can be formed, and the device can be produced in the air.

Abstract: A toner is provided which has toner particles containing a charging component and containing an aromatic compound represented by the following formula (1): wherein R1 to R3 each independently represent a hydrogen atom, a hydroxyl group, a carboxyl group, an alkyl group having 1 to 18 carbon atom(s) or an alkoxyl group having 1 to 18 carbon atom(s); R4 to R7 each independently represent a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 18 carbon atom(s) or an alkoxyl group having 1 to 18 carbon atom(s); R8 represents a hydrogen atom or a methyl group; and m represents an integer of 1 to 3.

Abstract: A toner is provided which has toner particles containing an aromatic compound represented by the following formula (1), and a colorant: wherein R1 to R3 each independently represent a hydrogen atom, a hydroxyl group, a carboxyl group, an alkyl group having 1 to 18 carbon atom(s) or an alkoxyl group having 1 to 18 carbon atom(s); R4 to R8 each independently represent a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 18 carbon atom(s) or an alkoxyl group having 1 to 18 carbon atom(s); and m represents an integer of 1 to 3.

Abstract: An object of the present invention is to provide a toner in which a charging amount and rise of the charging amount are hardly influenced by change in a temperature and humidity environment, and pigment dispersibility is high in order to provide an image output having high transparency, color mixing properties, and color nuance stability.

Abstract: A toner is provided which has toner particles containing a charging component and containing an aromatic compound represented by the following formula (1): wherein R1 to R3 each independently represent a hydrogen atom, a hydroxyl group, a carboxyl group, an alkyl group having 1 to 18 carbon atom(s) or an alkoxyl group having 1 to 18 carbon atom(s); R4 to R7 each independently represent a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 18 carbon atom(s) or an alkoxyl group having 1 to 18 carbon atom(s); R8 represents a hydrogen atom or a methyl group; and m represents an integer of 1 to 3.

Abstract: A toner is provided which has toner particles containing an aromatic compound represented by the following formula (1), and a colorant: wherein R1 to R3 each independently represent a hydrogen atom, a hydroxyl group, a carboxyl group, an alkyl group having 1 to 18 carbon atom(s) or an alkoxyl group having 1 to 18 carbon atom(s); R4 to R8 each independently represent a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 18 carbon atom(s) or an alkoxyl group having 1 to 18 carbon atom(s); and m represents an integer of 1 to 3.

Abstract: There is provided a field effect transistor having an organic semiconductor layer, including: an organic semiconductor layer containing at least porphyrin; and a layer composed of at least a polysiloxane compound, the layer being laminated on the organic semiconductor layer so as to be in intimate contact with the organic semiconductor layer. As a result, there can be provided a field effect transistor which enables an organic semiconductor layer having high crystallinity and high orientation to be formed and which exhibits a high mobility.

Abstract: A method of producing an organic semiconductor device is provided in which a layer composed of an organic semiconductor having excellent crystallinity and orientation in a low-temperature region can be formed, and the device can be produced in the air.

Abstract: An object of the present invention is to provide a field effect transistor showing high field-effect mobility and a high ON/OFF ratio, which can be produced simply by using a porphyrin compound with excellent crystallinity and orientation. The field effect transistor according to the present invention transistor contains at least an organic semiconductor layer, wherein the organic semiconductor layer contains at least a porphyrin compound and has a maximum diffraction intensity I1 in a Bragg angle (2?) range of 9.9° to 10.4° stronger than a maximum diffraction intensity I2 in a Bragg angle (2?) range of 23.0° to 26.0° in X-ray diffraction using CuK? radiation.

Abstract: A method of producing an organic semiconductor device is provided in which a layer composed of an organic semiconductor having excellent crystallinity and orientation in a low-temperature region can be formed, and the device can be produced in the air.

Abstract: A field effect transistor is provided which comprises an organic semiconductor layer comprising a compound having a monobenzoporphyrin skeleton represented by the general formula (1): wherein R1 and R2 are independently selected from the group consisting of a hydrogen atom, a halogen atom, a hydroxyl group, and alkyl, alkenyl, oxyalkyl, thioalkyl, alkyl ester and aryl groups each having 1 to 12 carbon atoms with the proviso that adjacent R1 may be the same or different and adjacent R2 may be the same or different and that at least two of R2 are not hydrogen atoms; R3 is a hydrogen atom or an aryl group; and M denotes two hydrogen atoms, a metal atom or a metal oxide.

Abstract: Provided is a method of producing a semiconductor device having an organic semiconductor layer, which includes the steps of providing a crystallization promoting layer on a substrate; providing an organic semiconductor precursor on the crystallization promoting layer; and applying light energy and thermal energy simultaneously to the organic semiconductor precursor to form a layer containing an organic semiconductor. Thereby, an organic semiconductor device is provided which is low cost and has excellent durability.

Abstract: A field effect transistor is provided which comprises an organic semiconductor layer comprising a compound having a monobenzoporphyrin skeleton represented by the general formula (1): wherein R1 and R2 are independently selected from the group consisting of a hydrogen atom, a halogen atom, a hydroxyl group, and alkyl, alkenyl, oxyalkyl, thioalkyl, alkyl ester and aryl groups each having 1 to 12 carbon atoms with the proviso that adjacent R1 may be the same or different and adjacent R2 may be the same or different and that at least two of R2 are not hydrogen atoms; R3 is a hydrogen atom or an aryl group; and M denotes two hydrogen atoms, a metal atom or a metal oxide.

Abstract: A field effect transistor is provided which comprises an organic semiconductor layer comprising a compound having a monobenzoporphyrin skeleton represented by the general formula (1): wherein R1 and R2 are independently selected from the group consisting of a hydrogen atom, a halogen atom, a hydroxyl group, and alkyl, alkenyl, oxyalkyl, thioalkyl, alkyl ester and aryl groups each having 1 to 12 carbon atoms with the proviso that adjacent R1 may be the same or different and adjacent R2 may be the same or different and that at least two of R2 are not hydrogen atoms; R3 is a hydrogen atom or an aryl group; and M denotes two hydrogen atoms, a metal atom or a metal oxide.