Chisso Corporation

Fuji Xerox Co., Ltd.

Sharp Kabushiki Kaisha Corporation

Shinichi Saito

Hiromichi Inoue

Kazutoshi Miyazawa

Kouji Ohno

Takashi Inukai

Kanetsugu Terashima

Makoto Ushioda

Kenji Furukawa

Eiji Okabe

Takashi Kaneko

Masatoshi Fukushima

Mitsuhiro Koden

Makoto Kikuchi

Katsuyuki Murashiro

Ryushi Shundo

Hideo Saito

Kunikazu Ueno

Mayumi Tanabe

Masayuki Hisatake

Hitoshi Takeda

Mitsuyoshi Ichihashi

Makoto Shiomi

Naoyuki Yoshida

Akira Sakaigawa

Motonari Matsuki

Manabu Ushikubo

Kanako Hayashi

Tomoo Furukawa

Koichi Miyazaki

Kisei Kitano

Teiyu Sako

Masami Kido

Yumi Sekiguchi

Hideki Baba

Susumu Koyama

Hiromichi Ioue

Mitshuhiro Koden

Mitsuyoshi Inchihashi

Akihisa Hirokawa

An information processing device includes a digital-information generating unit, an identifier assigning unit, an attribute setting unit and an electronic signing unit. The digital-information generating unit serially generates pieces of first digital information. The identifier assigning unit assigns different identifiers to the respective pieces of first digital information generated by the digital-information generating unit. The attribute setting unit sets an attribute of each first digital information so as to include the identifier assigned to each first digital information. The electronic signing unit electronically signs each first digital information to which the attribute setting unit sets the attribute including the corresponding identifier.

Information processing device, information processing system, seriality verification device, and computer-readable medium

An image forming apparatus has a micropattern reading unit, an encoded image generating unit and a code printing control unit. The micropattern reading unit reads a micropattern of a sheet. The encoded image generating unit generates an encoded image. The encoded image has the micropattern and a private key of a user. The code printing control unit prints the encoded image on the sheet to produce a certificate sheet.

Image forming apparatus certificate sheet making method and certificate sheet processing method

A sender devicestores, in header information about image information, information indicating that attribute information and image data rearranged in sequence, and produces image information by means of storing attribute information and image data in a predetermined sequence. The thus-produced image information is sent to a receiver deviceby way of a network lineWhen receipt of image information is initiated, the receiver devicerefers to the header information, thereby determining presence/absence, in the header information, of information indicating that attribute information and image data are stored in a predetermined sequence. When it has been determined that attribute information and image data are arranged in a predetermined sequence, image data included in the received image information are immediately decompressed, and the thus-decompressed image data are output in the form of a record or display.

Image information processing apparatus, and computer-readable recording medium

A scanner reads image information at read resolution set by a resolution control section and stores the image information in memory An image separation section separates the image information into a first image plane (picture part), a second image plane (text part color information), and a selection image plane (text part forms) for selecting either the first or second image plane. The resolution control section sets optimum resolutions in first to third resolution conversion sections in response to image quality, the original type, the system environment, the image plane characteristics, etc. The three image planes are converted into the resolutions set in the first to third resolution conversion sections The image planes after undergoing the resolution conversion are compressed in first to third compression sections and wrapped in one data format by an image format section

Image processing system, image processing method, image transmitting system, and image transmitting method

Input image information undergoes color conversion processing in a color conversion section , then is separated into first piece of image data, second piece of image data, and selection data in a multilayer data processing section and transmission data in the multilayer data format is output. On the other hand, a 1-layer data processing section prepares transmission data in the normal 1-layer data format from the image information. A color determination section determines whether the input image information is a color or monochrome image. If the image information is determined a color image, a selection section selects the transmission data in the multilayer data format; if the image information is determined a monochrome image, the selection section selects the transmission data in the 1-layer data format. Then, it transmits the selected transmission data through a transmission section

Image transmitting system and image transmitting method

A 2-substituted-alkyl ether having an optically active group and being useful as a component of ferroelectric liquid crystal compositions, and a liquid crystal composition containing the same are provided, which 2-substituted-alkyl ether is expressed by the formula ##STR1## wherein R.sup.1 represents a linear or branched chain alkyl, alkoxy, alkanoyl, alkanoyloxy or alkoxycarbonyl of 1 to 18 C; R.sup.2 represents a linear or branched alkyl of 2 to 15 C; ##STR2## and ##STR3## each independently represents ##STR4## wherein Y represents cyano, halogen, methyl or methoxy; and X represents --OR.sup.3, ##STR5## F, Cl or Br wherein R.sup.3 represents a linear or branched alkyl group of 1 to 10 C or H; and * indicates asymmetric C.

2-substituted-alkyl ether and liquid crystal composition

Ferroelectric liquid crystal compositions having a large dependency of spontaneous polarization on temperature; liquid crystal display devices exhibiting a small dependency of response speed on temperature and making it possible to obtain a wide temperature margin in practical use, and fabricated by using the ferroelectric liquid crystal composition; and methods for driving the devices are provided; the compositions comprising at least one compound expressed by the following general formula (1) ##STR1## at least one compound expressed by the following general formula (2), and ##STR2## at least one compound expressed by the following general formula (3) ##STR3## wherein R.sub.1 to R.sub.6, ring A-B, A, X.sub.1, and X.sub.2 are herein defined.

Ferroelectric liquid crystal composition and liquid crystal display

A compound expressed by the following formula (1) and a liquid crystalline composition with using it are provided: ##STR1## wherein, either one of rings A, B and C denotes ##STR2## remaining two of them denote each independently ##STR3## R denotes an alkyl group or an alkoxy group with 4-16 carbon atoms, R* denotes ##STR4## in which, R.sub.1 denotes CH.sub.3, CF.sub.3, CH.sub.2 F or CHF.sub.2, R.sub.2 denotes an alkyl group with 1-10 carbon atoms and m denotes 2-12. The said compound exhibits a ferroelectric liquid crystalline phase and an antiferroelectric liquid crystalline phase by itself.

Pyridine compound and liquid crystalline composition

Smectic liquid crystal composition and liquid crystal device

Optically active trifluorolactic acid derivative and liquid crystal

A composition containing a smectic C compound, having a .DELTA..epsilon. of negative value and enabling to effect a high speed response; a ferroelectric chiral smectic C liquid crystal composition using the same; and a ferroelectric liquid crystal display device using the ferroelectric chiral smectic C liquid crystal composition are provided, which composition containing a smectic C compound comprises at least one compound expressed by the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 each represent different linear alkyl groups of 1 to 9 C, and at least one compound-expressed by the formula (II) ##STR2## wherein R.sup.3 and R.sup.4 each represent the same or different linear alkyl groups of 1 to 18 C and X is H or F.

Smectic C liquid crystal composition and a liquid crystal display element

A composition containing a smectic C compound, having a .DELTA..epsilon. of negative value and enabling to effect a high speed response; a ferroelectric chiral smectic C liquid crystal composition using the same; and a ferroelectric liquid crystal display device using the ferroelectric chiral smectic C liquid crystal composition are provided,

An antiferroelectric liquid crystal composition comprising a first component comprising at least one compound expressed by the formula (I) and exhibiting no antiferroelectric phase, and a second component comprising at least one compound expressed by the formula (II) and exhibiting an antiferroelectric phase, the contents of the first component and the second component being respectively 1 to 40% and 60 to 99%, based upon the total weight of the two components: ##STR1## wherein in the formula (I), R.sup.1 is 1-18C linear alkyl or alkoxy; R.sup.2 is 1-18C alkyl or alkoxy; k, l, m and n are 0 or 1; (k+l) and (m+n) are 1 or 2, (k+l)+(m+n) are 2 or 3; X is --OCH.sub.2 --, --CH.sub.2 O--, --COO--, --OCO-- or single bond; 6-membered rings A, B, C and D are 1,4-phenylene, pyridine-2,5-diyl, pyrimidine-2,5-diyl, pyrazine-2,5-diyl or pyridazine-3,6-diyl, one of the side-positioned hydrogen atoms of which may be replaced by halogen atom or CN, and in the formula (II), R.sup.3 is 1-18C linear alkyl or alkoxy; R.sup.4 is 2-18C alkyl or alkoxy; p, q, t and u are 0 or 1; (p+q) and (t+u) each are 1 or 2; (p+q)+(t+u) are 2 or 3; j is 0 or 1; Z is --COO--, --OCO--, --OCH.sub.2 --, --CH.sub.2 O--or single bond; Y is --CH.sub.3 ; 6-membered rings E, F, G and H are 1,4-phenylene, pyridine-2,5-diyl, pyrimidine-2,5-diyl, pyrazine-2,5-diyl or pyridazine-3,6-diyl; * shows asymmetric carbon atom. An antiferroelectric liquid crystal composition having the threshold voltage lowered at the time of transition from the antiferroelectric phase to ferroelectric phase accompanying the electric field impression in the antiferroelectric phase is provided, and a light-switching element which has a good contrast and can effect a tristable switching is obtained using the above composition.

Antiferroelectric liquid crystal composition

A novel optically active liquid crystal compound and a liquid crystal composition containing the same are provided, which compound is expressed by the formula ##STR1## wherein R.sub.1 is alkyl or alkoxy of 4-18 C; R.sub.2 is alkyl, alkoxy, acyl or alkoxymethyl of 4-18C; but either one of R.sub.1 or R.sub.2 is an optically active group; either one of X.sub.1 or X.sub.2 is halogen atom and the other is H; m and n each are 0 or 1 and m+n is 0 or 1.

Halogen-containing, optically active liquid crystal compound and liquid

A novel lactone compound exhibiting a larger spontaneous polarization value when added to ferroelectric liquid crystal compositions as a basic substance, than those of so far known lactone compounds, and yet having a relatively low viscosity, and a liquid crystal composition comprising the compound, and further a liquid crystal element using the same are provided, the lactone compound being expressed by the formula ##STR1## wherein R.sup.1 is a linear or branched alkyl group or alkoxy group of 1-15C, R.sup.2 is a linear or branched alkyl group of 1-16C, --A-- is single bond, 1,4-phenylene group or 1,4-cyclohexylene group and * is an asymmetric carbon atom.

Lactone compound and composition comprising the same

Growing community of inventors

Kanagawa, Japan

Shinichi Saito