Fuji Xerox Co., Ltd.

Kiyokazu Mashimo

Toru Ishii

Katsuhiro Sato

Hirohito Yoneyama

Hidekazu Hirose

Takeshi Agata

Mieko Seki

Daisuke Okuda

Akira Imai

Katsumi Nukada

Yohei Nishino

Tadayoshi Ozaki

Fumio Ojima

Yasuo Sakaguchi

Masakazu Iijima

Katsumi Daimon

Koji Horiba

Tomoo Kobayashi

Tomozumi Uesaka

Ichiro Takegawa

Taketoshi Hoshizaki

Kazuyuki Nakamura

Kazuaki Sato

Yoshihiro Ohba

Takashi Matsumura

Yoshinori Yamaguchi

Masahiro Iwasaki

Hiroaki Moriyama

Ryosaku Igarashi

Masahiko Hozumi

Kazuhiro Koseki

Kazuo Yamasaki

Takahiro Suzuki

Wataru Yamada

Kenji Yao

Yoshinori Machida

Yasufumi Suwabe

Kiyoshi Shigehiro

Yoshiro Yamaguchi

Takeshi Matsunaga

Yutaka Akasaki

Motohiko Sakamaki

Hiroshi Miyamoto

Shigetoshi Nakamura

Masayuki Nishikawa

Makoto Takemoto

Taketoshi Higashi

Kohichi Yamamoto

Michiaki Takahashi

Kyoko Nishikawa

Satsumi Daimon

The invention provides an exposure head including:

Exposure head and producing method thereof, cartridge, and image forming apparatus

An exposure apparatus that emits light toward a latent-image bearing member configured to bear a latent image, the latent image formed on the latent-image bearing member being used in a developing process performed by a developing device. The exposure apparatus includes a first light-emitting unit including an organic electroluminescence element disposed along a main scanning direction of the latent-image bearing member, the first light-emitting unit emitting light toward the latent-image bearing member, and a second light-emitting unit disposed along the main scanning direction, the second light-emitting unit correcting an amount of light to which the latent-image bearing member is exposed in cooperation with the first light-emitting unit.

Exposure apparatus and image forming apparatus

The present invention provides an annular exposure device, including:

Exposure device, image forming apparatus, and image forming unit

An organic electroluminescent device, having an organic compound layer including two or more layers including at least a buffer layer and an emitting layer, wherein at least one of the organic compound layers other than the buffer layer contains at least one charge-transporting polyester represented by Formula (I-1) or (I-2), and the buffer layer is formed in contact with an anode and contains a crosslinked compound formed by using at least one charge injection material containing a substituted silicon group and represented by Formula (III). 

Organic electroluminescent device and display device

An organic electroluminescent device includes: a pair of electrodes; a first light-emitting region that is disposed between the pair of electrodes, and that emits light when a voltage is applied between the pair of electrodes such that one of the pair of electrodes serves as an anode; and a second light-emitting region that is disposed between the pair of electrodes, and that emits light when a voltage is applied between the pair of electrodes such that the other of the pair of electrodes serves as an anode.

Organic electroluminescent device, exposure device, process cartridge, image forming apparatus, display apparatus, and method for driving organic electroluminescent device

An organic electroluminescence element includes a pair of electrodes composed of an anode and a cathode, at least one of which is transparent or semitransparent, and one or more organic compound layers disposed between the pair of electrodes, wherein at least one of the organic compound layers comprises at least one charge-transporting polyester consisting of repeating units containing, as a partial structure, at least one structure represented by the following formula (I-1). 

Organic electroluminescence element and display device

An organic electroluminescent device with a pair of electrodes having an anode and a cathode, and one or more organic compound layers disposed therebetween. One of the anode or the cathode is transparent or semitransparent. One of the organic compound layers includes a charge-transporting polyester having a repeating structure containing at least one structure selected from the structures represented by the following formulae as a partial structure:  

Thiophene-containing compound and thiophene-containing compound polymer, organic electroluminescent device, production method thereof, and image display medium

A thiophene-containing compound polymer represented by  

An organic electroluminescent device having a pair of electrodes including a positive electrode and a negative electrode at least one of which is transparent or translucent, and one or more organic compound layers interposed between the pair of electrodes, at least one layer of the organic compound layers containing at least one charge transporting polyester having a repeating unit that contains at least one structure selected from structures represented by the following formula (I-1) as a partial structure. 

Organic electroluminescent device, production method thereof, and image display medium

A method for producing a polymer organic electronic material comprising: synthesizing a polymer organic electronic material by condensing a precursor monomer for the polymer organic electronic material in the presence of a metal catalyst, preparing a polymer organic electronic material solution by dissolving the polymer organic electronic material in an organic solvent, and removing metal ions, which originate from the metal catalyst, from the polymer organic electronic material solution by using an ion exchange resin; a polymer organic electronic material which can be obtained by the method; and an organic electroluminescent device which uses the polymer organic electronic material.

Method for producing polymer organic electronic material, polymer organic electronic material, and organic electroluminescent device

Provided are a thiophene-containing compound represented by the following formula (X-1), and an organic electroluminescent device that includes a pair of electrodes and an organic compound layer disposed therebetween. The organic compound layer includes a charge-transporting polyester having a repeating structure containing at least one structure selected from the structures represented by the following formulae (I-1) and (I-2) as its partial structure. In formula (X-1), Arrepresents a substituted or unsubstituted monovalent aromatic group; and Rto Reach independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; and n' is an integer of 1 to 5. 

The present invention provides a thiophene-containing compound represented by Formula (I) and a thiophene-containing compound polymer using the thiophene-containing compound. In Formula (I), Arrepresents a substituted or unsubstituted monovalent aromatic group; X represents a divalent straight-chain hydrocarbon group having 1 to 6 carbon atoms, a divalent branched-chain hydrocarbon group having 2 to 10 carbon atoms, or a substituted or unsubstituted divalent aromatic group; Rto Reach independently represent a hydrogen atom, an alkyl group, a cyano group, a halogen group, a substituted amino group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; 1 represents an integer from 1 to 5; and m and k each independently represent 0 or 1. 

Thiophene-containing compound and polymer thereof

An organic electroluminescent element having at least one pair of electrodes including an anode and a cathode, at least one of which having light transmissive, and at least one organic compound layer disposed between the electrodes, wherein the at least one organic compound layer contains at least one kind of non-conjugated polymer having terminal groups, and at least one of terminal groups of the non-conjugated polymer contains a fluorescent substance emitting fluorescence in a solid state.

Organic electroluminescent element

Disclosed is an organic electroluminescent element comprising at least one pair of electrodes comprising an anode and a cathode, at least one of which having light permeability, and one or a plurality of organic compound layers held between the electrodes, wherein at least one organic compound layer contains at least one kind of charge-transferable polyether comprising a repetition unit containing at least one partial structure selected from the group consisting of the following general formulae (I-1) and (I-2) 

The present invention provides an organic semiconductor transistor element that includes at least a source electrode, a drain electrode, an organic semiconductor formed to be electrically conductive to the source electrode and the drain electrode, and a gate electrode which is both insulated from the organic semiconductor and capable of applying an electric field. The organic semiconductor includes a polymer compound containing an aromatic tertiary amine.

Organic semiconductor transistor element, semiconductor device using the same, and process for producing the semiconductor device

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Kanagawa, Japan

Kiyokazu Mashimo