Takasago International Corporation

Canon Kabushiki Kaisha

Konica Corporation

Other

Dai Nippon Printing Co., Ltd.

Shindengen Electric Manufacturing Company Limited

Asahi Denka Kogyo K.k.

Yamanashi Electronics Co., Ltd.

Tohru Kobayashi

Toshimitsu Hagiwara

Yoshimasa Matsushima

Hiroshi Sugiyama

Yasushi Murayama

Takashi Uchida

Tomohiro Aoki

Masatoshi Ikkatai

Masaharu Nemura

Tatsuo Mitomi

Yasuyuki Takanaka

Yoji Hori

Ken Suzuki

Eiichi Ueda

Masato Okada

Noriki Tachibana

Mamoru Yamada

Yuji Nakayama

Hiroyuki Mizuma

Hiromitsu Araki

Yoshihiro Wada

Yoko Takahashi

Sadahiro Kawahara

Satoshi Suzuki

Sunao Gouhara

Yoko Aoki

Yoshinobu Kashibuchi

Takashi Imai

Amane Mochizuki

Kazuo Kato

Hajime Suzuki

Akio Yamaguchi

Shinya Yamada

Shusaku Nakano

Tsutomu Hashimoto

Kazuo Ohkawa

Yukiharu Iwaya

Hiroyuki Tachikawa

Takenobu Nishikawa

Hideyuki Hongo

Junji Nakamura

Yasuo Nishi

Kenichi Fujimori

Yoshitaro Nakayama

Nakaya Nakano

Yoshiki Hasegawa

Atsushi Iwanami

Takumi Shinohara

Mitsuhiko Fujiwara

The present invention provides a process for effectively producing an N-(hetero)arylazole with high yield, which is useful as a medical or agrochemical product, an organic photoconductor material, an organic electroluminescent element material, or the like. The present invention relates to a process for producing an N-(hetero)arylazole, which includes reacting a (hetero)aryl (pseudo)halide with an NH-azole in the presence of: a catalyst including a palladium compound and a coordination compound; and a basic magnesium compound.

Process for producing N-(hetero)arylazoles

An object of the present invention is to provide a charge transport material and an electrophotographic photoreceptor using the charge transport material, the charge transport material sufficiently satisfying characteristics conventionally desired for a charge transport material for an electrophotographic photoreceptor, specifically, the charge transport material having a good solubility in a binder polymer, allowing formation of a stable and high-concentration organic thin film therefrom, and having a high carrier mobility. To achieve the object, the present invention provides a tris(4-styrylphenyl)amine derivative represented by the following general formula (1): wherein R1 represents a methyl group or methoxy group, and R2 represents a hydrogen atom, methyl group, or methoxy group, provided that a case where R1 and R2 are a methyl group and R2 is at the meta-position is excluded; wherein 50% or more of geometrical isomers have three double bonds which are all trans.

Electrophotographic photoreceptor

There are provided an organic electroluminescent (EL) element, which can realize the provision of a large screen by the formation of a film through coating in a simple and highly efficient manner, and a display panel using the same. The organic EL element comprises: a pair of opposed electrodes, a cathode and an anode; and an organic compound layer having a single-layer or multi-layer structure held between the pair of opposed electrodes, at least one layer constituting the organic compound layer being a layer containing at least one polymer comprising at least one monomer unit of a specific compound.

Organic electroluminescent element and display panel using said element

There is provided a charge transport material which can easily be coated to form a film, is less likely to be crystallized during or after film formation, has excellent charge transport capability, and high applicability to electronic devices. A charge transport monomer comprising conventional CBP with a specific substituent introduced thereinto is polymerized to prepare a polymer which is brought to a charge transport material comprising this polymer.

Charge transport monomer, charge transport material, and process for producing the same

This invention provides a polymerizable liquid crystal compound having a large value of &Dgr;n/n, excellent in coating properties on an alignment film and easily aligned. Disclosed is a polymerizable liquid crystal compound having at least one polymerizable reactive group and showing nematic liquid crystal properties, having a &Dgr;n/n value of 0.14 or more wherein n is average refractive index and &Dgr;n is extraordinary light refractive index (ne) minus ordinary light refractive index (no), and being aligned by application onto an alignment film.

Polymerizable liquid crystal compound and optical film

A cleaning apparatus and method for removing a recording ink from a surface of a recording material conveying belt of a recording apparatus. The method includes the steps of contacting a blade member to a surface of the recording material conveying belt and contacting an ink absorber member to a surface of the recording material conveying belt, thus removing from the belt surface an improper discharge of recording ink.

Apparatus and method for cleaning a recording material conveying member using blade member and ink absorber

2,2(diarlyl)vinylphosphine compound, palladium catalyst thereof, and process for producing arylamine, diaryl, or arylalkyne with the catalyst

A brake pedal structure for a vehicle includes a pedal bracket provided on a dash panel of the vehicle, a pedal shaft provided on the pedal bracket, a pedal arm pivotally supported by the pedal shaft in a freely rotatable manner around the pedal shaft as a rotational axis, and a push rod connected to the pedal arm for operating a brake system of the vehicle in response to rotation of the pedal arm. The push rod has a portion so as to interrupt the transmission of a load input at the time of collision of said vehicle.

Brake pedal structure for vehicle

The present invention provides an activator in arylamination using a palladium compound as a catalyst, which is superior to conventional phosphines in stability and performance. With the phosphine sulfide as an activator, an arylamination reaction achieves improved selectivity to produce a desired aromatic amine in an obviously increased yield as compared with a reaction using the corresponding phosphine compound. Moreover, the phosphine sulfide of the invention is impervious to oxidation and exists stably in air and therefore sufficiently withstands use on an industrial scale.

Process for producing aromatic amines

A brake pedal structure for a vehicle disclosed herein includes a pedal bracket provided on a dash panel of the vehicle, a pedal shaft provided on the pedal bracket, a pedal arm pivotally supported by the pedal shaft in a freely rotatable manner around the pedal shaft as a rotational axis, and a push rod connected to the pedal arm for operating a brake system of the vehicle in response to rotation of the pedal arm. The push rod has a portion so as to interrupt the transmission of a load input at the time of collision of said vehicle.

Disclosed are novel compounds useful in electrophotographic photoreceptors as charge-transporting materials having good miscibility with binder polymers and capable of forming a thin stable organic film having a high concentration; and an electrophotographic photoreceptor containing the same. The compounds are bis(3,4-methylenedioxyphenylamino) derivatives represented by general formula (1):

Bis(3,4-methylenedioxyphenylamino) derivatives and electrophotographic photoreceptor containing the derivatives

A triphenylamine derivative, represented by the following general formula (1):

Triphenylamine derivative, charge-transporting material comprising the same, and electrophotographic photoreceptor

Disclosed is a charge transfer material which is highly soluble in a binder resin, does not precipitates crystals and produces no pinhole and also disclosed is an electrophotographic photoreceptor comprising the charge transfer material which comprises a butadiene compound represented by the formula (I): ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, respectively represent a lower alkyl group having 1-4 carbon atoms or a phenyl group or benzyl group which may have a substituent and R.sup.3, R.sup.4 and R.sup.5, which may be the same or different, respectively represent a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group having 1-4 carbon atoms or a halogen atom; and a butadiene compound represented by the general formula (II): ##STR2## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are the same as above, and the content of the butadiene compound of the formula (I) is at least 60% by weight based on the total amount by weight of the butadiene compounds of the formulae (I) and (II).

A recording apparatus builds an image at high quality without occurrence of malfunctions attributable to raised/recessed spots on the surface of a conveyance belt and insufficient dimensioning for the width of the conveyance belt, while preventing the interior of the recording apparatus from being contaminated with erroneously ejected ink. The recording apparatus includes a conveyance belt for conveying a recording sheet below four kinds of recording heads, and the conveyance belt has a joint line along which the opposite ends of a band-shaped material are joined to each other. In addition, the conveyance belt has a band-shaped colored portion which is located remote from the joint line by a predetermined distance. The colored portion is detected by an optical sensor, and a control unit controls the driving of the conveyance belt in response to a signal derived from the detection of the optical sensor.

Ink jet printing apparatus with print medium conveyance belt

Growing community of inventors

Hiratsuka, Japan

Tohru Kobayashi