Ricoh Company, Ltd.

Jsr Corporation

Sharp Kabushiki Kaisha Corporation

Japan Synthetic Rubber Co., Ltd.

Hitachi Industries Co., Ltd.

San-dia Polymers, Ltd.

Yoshihisa Ohta

Masakazu Yoshida

Takashi Kimura

Masanori Hirano

Naoki Nakano

Takayuki Ito

Tetsuro Hirota

Yong Wang

Toshihito Kamei

Shigetoshi Hosaka

Shuzo Matsumoto

Shinichi Hatanaka

Shinichi Kakuda

Hideyuki Makita

Taeko Murai

Makoto Tanaka

Takahiro Yoshida

Tsutomu Sasaki

Tomohiro Inoue

Naoya Morohoshi

Osamu Naruse

Nobuo Kawahashi

Kinji Yamada

Hikaru Sugita

Michinori Nishikawa

Shin-ichiro Iwanaga

Makoto Nakahara

Mitsumi Fujii

Takatoshi Kira

Tomoaki Nakano

Michio Umezawa

Yasunobu Takagi

Takayoshi Tanabe

Toshiyuki Kai

Yoshiaki Hoshino

Taku Satoh

Daisuke Ikesugi

Takahiro Ike

Shigeaki Kimura

Shirou Kusumoto

Arata Yamaguchi

Shigeo Shimizu

Hironori Toyoshima

Akio Saito

Naoki Watase

Kazuki Iwai

Tsuneyoshi Shimizu

Yoshiji Yuumoto

Munekazu Satake

Masayuki Iwase

Motoki Okaniwa

Norifumi Sumimoto

An image processing apparatus is disclosed. The image processing apparatus includes a color conversion processing unit which obtains CMY data from input color space coordinate data of image data, and an output data generating unit which generates output data by forming CMYK data by using a result output from a color conversion processing section. The color conversion processing section includes an optimum color reproduction data structure which gives the CMY data for obtaining a full color image optimally reproduced from the input color space coordinate data, and a color material using amount reducing data structure for outputting the input color space coordinate data by reducing the color material using amount with the use of a reference value in which the color material using amount is increased for a hue of an output image giving a high psychological effect and is decreased for a hue of the output image giving a low psychological effect.

Image processing apparatus, image processing method, and computer-readable recording medium storing image processing program for color conversion of image data

An image processing apparatus for converting input image data into output image data for an image forming apparatus configured to output an image with the use of coloring material, which includes a unit configured to perform a coloring-material usage amount reduction process of converting the input image data into the output image data such that an amount of the coloring material used for color-printing the input image data becomes a target coloring-material usage amount defined based on a monochrome-printing coloring-material usage amount required for monochrome-printing the input image data.

Image processing apparatus, image processing method, program, recording medium, printing system, image forming apparatus

A method of forming an image by an image forming apparatus provided with a print head having plural nozzles, wherein the print head has an overlapping area whose print area overlaps a print area of a physically adjacent print head, or has an overlapping area whose print area overlaps an adjacent scan line on a print sheet surface, includes an image forming step of forming an image by the print head, wherein the image forming step includes a control step of controlling in a variable manner an amount of ink sprayed from a proximity nozzle situated in close proximity of the overlapping area, the proximity nozzle being one of the nozzles situated in a non-overlapping area outside the overlapping area.

Formation of image by image forming apparatus with overlapping area

An imaging apparatus is disclosed that includes plural heads that are arranged in a main scanning direction, the heads including plural nozzle arrays that are arranged in the main scanning direction and configured to discharge droplets of recording liquids in at least three different colors including a yellow recording liquid. At least two of the nozzle arrays that are configured to discharge the yellow recording liquid are separately arranged in at least two of the heads. At least two of the nozzle arrays that are configured to discharge a first recording liquid of the recording liquids in a first color other than yellow are arranged together in one of the heads. At least two of the nozzle arrays that are configured to discharge a second recording liquid of the recording liquids in a second color other than yellow are arranged together in one of the heads.

Color imaging apparatus having yellow nozzle array and magenta nozzle array on same head and shifted relative to each other by a half-pitch

An imaging method is disclosed for realizing full color printing using an ink head configured to discharge black ink and a plurality of color inks. The imaging method involves printing a monochrome image portion by printing a plurality of first rasters using black ink and an arbitrary number of the color inks, and printing a second raster in between the first rasters using pseudo black ink that is realized by the remaining number of the color inks.

Imaging method and inkjet recording apparatus

Color imaging apparatus configured to reduce bidirectional color difference

An image reproducing and forming apparatus comprises a recording head () configured to eject liquid droplets of at least one color and capable of bidirectional recording, and a controller () configured to control the amount of liquid adhering to a recording paper () so as to reduce color difference occurring in the bidirectional recording. The controller includes a gamma correction unit () configured to selectively perform a controlled gamma correction using a controlled gamma value adjusted so as to reduce the color difference or an ordinary gamma correction using an ordinary gamma value.

Image reproducing and forming apparatus, printer driver and data processing apparatus

A disclosed image forming apparatus includes a line-type liquid discharging head including nozzles configured to jet liquid droplets. The nozzles are aligned in a sheet width direction. The line-type liquid discharging head includes plural nozzle rows each including an alignment of a plurality of the nozzles configured to discharge liquid droplets of the same color. A distance Lbetween the nozzle rows is L=T1&#xd7;V, where Tis a liquid transfer amount impregnating time of a standard sheet and Vis a sheet conveying speed.

Image forming apparatus, liquid discharging head, image forming method, recorded matter, and recording liquid

A water absorbing agent comprising a crosslinked polymer including a water-soluble vinyl monomer (a1) and/or a vinyl monomer (a2) that is formed into the water-soluble vinyl monomer (a1) by hydrolysis, and a crosslinking agent (b) as an essential constituting unit, wherein the following formulae (1) and (2) are satisfied; a process for its production, and absorbers and absorbent articles made by the water absorbing agent.()&#x2267;&#x2212;1.14()+69.5 &#x2003;&#x2003;(1)()=((1)+4&#xd7;(2))&#x2003;&#x2003;(2)wherein (x1) denotes a water-retention amount (g/g) of the water absorbing agent after being soaked in a physiological saline for one hour; (x2) denotes an absorption amount (g/g) of the water absorbing agent after being soaked in a physiological saline under loading of 0.9 psi for one hour; and (Y) denotes a liquid permeation speed (ml/min) of a physiological saline after the water absorbing agent is soaked in a physiological saline under loading of 0.3 psi for one hour. The water-absorbing agent enables easy production of absorbent articles exhibiting high absorption performance in any state, and is suitable for use in disposable diapers, sanitary napkins, and other sanitary goods.

Water absorbing agent, process for its production, and absorbers and absorbent articles made by using the agent

To provide a liquid crystal aligning agent which can provide a liquid crystal display element having a liquid crystal alignment film provided with alignability for liquid crystal molecules by rubbing without fail and having excellent liquid crystal alignability. The liquid crystal aligning agent comprises at least one selected from a polyamic acid having a specific structure having 2 or 3 rings, and an imidized polymer of the polyamic acid and further having alkyl group having the main chain with 8 or more carbon atoms, perfluoroalkyl group having the main chain with 3 or more carbon atoms, or 1,1-cycloalkylene group having 6 or more carbon atoms which may be substituted.

Liquid crystal aligning agent

In a solution emitting head for emitting a solution through an outlet, having a main body including a cavity, a cover attached to the main body in such a manner that the cover covers the cavity to form a chamber so that the solution is stored in the chamber temporarily before being emitted from the outlet, and a solution pressurizing device for pressurizing the solution in the chamber, the cover is fixedly attached to the main body by one of metal-to-metal bonding and an adhesive dissolution-resistant against the solution between the cover and the main body.

Solution injector head, functional layer forming apparatus and liquid crystal display

Composition for resist underlayer film and method for producing the same

A negative radiation-sensitive resin composition including (A) an alkali-soluble resin containing a copolymer selected from the group consisting of a hydroxystyrene/styrene copolymer having hydroxystyrene units in a content of from 65 to 90 mol % and a hydroxystyrene/&agr;-methylstyrene copolymer having hydroxystyrene units in a content of from 65 to 90 mol %, (B) a radiation-sensitive acid-generating agent containing a hydroxyl group-containing onium salt compound, and (C) a cross-linking agent containing an N-(alkoxymethyl)glycoluril compound. The composition is suitable as a chemically amplified negative resist, to which alkaline developing solutions having usual concentration are applicable and which can form, in usual line-and-space patterns, resist patterns having a rectangular cross-sectional shape in a high resolution and also has superior sensitivity, developability and dimensional fidelity.

Negative radiation-sensitive resin composition

An ink jet printing apparatus includes an ink jet head having a plurality of nozzles for respectively ejecting ink drops, a plurality of ink chambers communicating with the nozzles, and a plurality of electromechanical conversion elements corresponding to the respective nozzles. The volume of the ink chamber of the non-drive channel is increased by the influence of the drive channel adjacent thereto, and thereby undesired ejection of the ink drop occurs. To solve this problem, a drive energy set for ejecting the ink drop is applied to the piezoelectric elements of the drive chambers n&minus;1, n&plus;1 and a reduced drive energy set for not ejecting the ink drops is applied to the piezoelectric element of the non-drive channel n.

Ink jet printing apparatus

An ink jet printing head includes a nozzle plate having an outside surface and a plurality of nozzles for discharging ink from the outside surface, each nozzle having a first diameter at a peripheral edge of the nozzle plate. A surface treatment layer is provided on the outside surface of the nozzle plate, the surface treatment layer having a plurality of openings overlapping the plurality of nozzles, each opening having a second diameter at a peripheral edge of the surface treatment layer, the second diameter being smaller than the first diameter.

Ink jet printing head and its production method

Growing community of inventors

Tokyo, Japan

Yoshihisa Ohta