Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.

Location: Tokyo, JP
No. of patents: 155

Number	Title	Issue Date
8163839	Pigment dispersants, their production process, and their use A pigment dispersant contains (a) 5 to 30 wt % of aromatic and/or heterocyclic vinyl monomer units, (b) 10 to 30 wt % of monomer units having acid groups, (c) 40 to 80 wt % of (meth)acrylate ester monomer units, and (d) 5 to 30 wt % of monomer units having poly(C	04/24/2012
8133541	Hydroxyalkylated chitosan solution This invention relates to hydroxyalkylated chitosan solution characterized in that a hydroxyalkylated chitosan and an organic acid or its derivative are contained in an aprotic polar solvent. This invention also relates to a coating process of a substrate, which is ...	03/13/2012
8093318	Flame retardant polyurethane resin composition and making method A polyurethane resin composition comprising (A) a polycarbonate base polyurethane resin, (B) a P and N-containing non-halogen flame retardant, (C) a polyhydric alcohol, and (D) a silicone containing at least two reactive functional groups in the molecule obviates th...	01/10/2012
8004748	Thermal lens forming element A thermal lens forming element includes a first chamber serving as a control light absorbing region, which is configured as a columnar body or an N prismatic body (wherein N is an integer equal to or greater than 4) circumscribing the columnar body and filled with a...	08/23/2011
7993446	Dispersing agent for organic pigment and use thereof This invention relates to a dispersant for an organic pigment comprising a compound represented by the below-described formula (1) or (2), and also to its use. According to the present invention, it is possible to provide a dispersant or the like, which can afford a...	08/09/2011
7985796	Copolymer and use thereof This invention relates a copolymer (D) containing (A) methacrylic polymer units each having, at an end thereof, at least one group represented by the below-described formula (1) and (B) units of an aromatic vinyl monomer, wherein a weight ratio (A:B) of the units (A...	07/26/2011
7888398	Pigment This present invention can provide a novel pigment useful in color image displays to form blue pixels capable of providing high-level brightness and saturation, especially a finely-divided pigment which has bright hue and is excellent in pigment physical properties ...	02/15/2011
7828891	Pigment compositions, colored compositions making use of the pigment compositions, and color filters Pigment compositions each contain an organic pigment and at least one compound selected from compounds represented by the following formula (II), respectively: A-N═N—CH(COCH3)—CONH-E, B—N═N—CH(COCH3)—CONH-E or ...	11/09/2010
7826696	Optical deflection method and optical deflection apparatus An optical deflection apparatus includes a signal light source configured to emit signal light having one or more wavelengths, a control light source configured to emit control light having a wavelength different from the wavelength of the signal light, a thermal le...	11/02/2010
7792398	Optically controlled optical-path-switching-type data distribution apparatus and distribution method Data to be sent are, in a data communication unit, first divided into electric signal packets by a data transmission/receipt control unit, whereby an electric signal sequence tag is added to each electric signal packet, then converted into optical packets by an opti...	09/07/2010
7790191	Cosmetic composition A cosmetic composition comprising a polysiloxane copolymer comprising a repeating unit (A) having at least one anionic group, a repeating unit (B) having at least one linear or branched alkyl group having 8 to 64 carbon atoms, and a polysiloxane repeating unit (D), ...	09/07/2010
7655087	Pigment compositions, colored compositions making use of the pigment compositions, and color filters Pigment compositions each contain an organic pigment and at least one compound selected from compounds represented by the following formulas (I) or (II), respectively: A-N═N-D, B—N═N-D or C—N═N-D Formula (I) A-N═N—CH(COCH3...	02/02/2010
7611572	Pixel-forming colorant compositions and their use A pixel-forming colorant composition contains at least one green colorant selected from the group consisting of the following pigments (A) and (B) and pigment derivative (C): (A) a copper phthalocyanine green pigment obtained by re...	11/03/2009
7553365	Water-based pigment dispersions, inkjet recording inks, and color filters An aqueous pigment dispersion is produced by ultrafinely dispersing a pigment dispersion mixture, which has been obtained by mixing at least a pigment and a dispersant in an aqueous medium, with microbeads having diameters of not smaller than 0.02 mm but smaller tha...	06/30/2009
7511894	Optical flip-flop circuit A flip-flop circuit of the present invention includes a first switch and a second switch which are connected in series to each other. The first switch includes: two input ports upon which light source light and signal light are incident; two output ports for outputt...	03/31/2009
7509010	End-surface closely arranged multicore optical fiber and manufacturing method thereof In an end surface closely arranged multicore optical fiber 200, at least two single-mode optical fibers 10 are, at one and the other ends of the individual single-mode optical fibers 10, closely arranged in parallel to each other and bound toget...	03/24/2009
7438999	Dispersants for organic pigments A dispersant for an organic pigment contains a compound represented by the following formula (1): wherein R1 and R2 may be the same or different and each independently represents a hydrogen atom, a hal...	10/21/2008
7393404	Pigment dispersants and their use A pigment dispersant contains the following component (a) alone or the following components (a) and (b) in combination: Component (a): a composite pigment formed of a diketopyrrolopyrrole pigment having a sulfonic group and another diketopyrrolopyrrole pigmen...	07/01/2008
7368148	Fabrication process of color filters, inks, color filters, and image displays using the color filters Color filters can each be fabricated by printing a pixel pattern for the color filter on a flexible plastic film by a central impression cylinder press. The pixel pattern is formed of pixels of three primary colors consisting of red, green and blue or pixels of thre...	05/06/2008
7361698	Water-based pigment inks, image recording method, and image recording system A water-based pigment ink contains a pigment, a hydrophilic dispersant, an aqueous medium, an alkali agent for solubilizing the hydrophilic dispersant in the aqueous medium, and a hydrophilic compound having at least one structural unit of “hydrophobic molecular c...	04/22/2008
7347894	Pigment dispersants and their use There is disclosed a pigment dispersant comprises the compound represented by the following formula (I) or a metal salt, ammonium salt, amine salt or alkylammoniumchloride salt thereof. Also disclosed are a colored composition for CF, a process for the fabric...	03/25/2008
7301686	Optically controlled optical-path-switching apparatus, and method of switching optical paths An optical signal optical path switching method comprising steps of using a thermal lens based on a distribution of refractive index produced reversibly caused by temperature increase generated in an area of the light-absorbing layer film of thermal lens forming dev...	11/27/2007
7288301	Thermal recording media A thermal ink ribbon has a base sheet, a thermal recording layer arranged on one side of the base sheet, and a back layer arranged on an opposite side of the base sheet. The back layer according to the present invention comprises a polyurethane resin which is obtain...	10/30/2007
7283139	Image processing device for transmitting color with fidelity and product selling method using the same An image processing device (1) provides a client device (3) with a first test pattern image, acquires the results of evaluation concerning distinguishability of the image by human eyes, acquires color expression characteristics of the client device (	10/16/2007
7253229	Polymer-bonded functional agents Polymer-bonded functional agents are each obtained by reacting a functional agent containing reactive groups with a polymer containing groups reactive with the reactive groups of the functional agent. The functional agent comprises at least one functional agent sele...	08/07/2007
7232853	Production process of colored fine particulate resins, colored fine particulate resins, and coloring process of articles Colored fine particulate resins can each be produced by bringing a colored resin, which comprises a thermally fusible resin and a colorant evenly distributed in the thermally fusible resin, into a molten state; forming the colored resin, which is in the molten state...	06/19/2007
7222574	Compositions and method for treating potted seedlings, and method for planting same Treatment agents are provided for cell seedlings. Each treatment agent comprises water, a dispersant, and activated carbon finely dispersed with the dispersant in the water. Potted seedlings can be treated by dipping them in the treatment agent and/or by irrigating ...	05/29/2007
7220474	Resin composition for a non-woven fabric-like design and process for producing a molded article of a resin having a non-woven fabric-like design A resin composition for producing a molded article having a surface which has an appearance of a non-woven fabric, which comprises fiber piles of a carbonized polyacrylonitrile having a nitrogen content of 10% by weight or more, a size of 1 to 15 denier and a length...	05/22/2007
7215491	Optical path switching device and method An optical path switching method includes converging and irradiating, on a light absorption layer film provided in a thermal lens forming element including at least the film, each of a control light having a wavelength selected from a wavelength band which is absorb...	05/08/2007
7138211	Solidifying material for cell electrolyte solution, and cell comprising the solidifying material A solidifying material for a cell electrolyte solution is a block copolymer, which comprises, as segments A, a polymer non-compatible with the cell electrolyte solution and, as segments B, a polymer compatible with the cell electrolyte solution. The solidifying mate...	11/21/2006
7135062	Hydrophilic coloring matter for recording image, aqueous coloring agent for recording image, method and device for recording image Image-recording, hydrophilic colorants having an organic pigment linked to a hydrophilic compound through a linking group and which are capable of forming images excellent in print quality such as chroma, gloss, density, light fastness and abrasion fastness, and als...	11/14/2006
7081348	Immunoassay of human medullasin and diagnosis of multiple sclerosis using the same There is provided an immunoassay by which the amount of human medullasin present inside granulocytes, which are one leukocyte component in blood, can be determined with high accuracy and with good reproducibility. Also provided is an immunoassay of medullasin, where...	07/25/2006
7078072	Method of modifying surface layer of molded resin and apparatus for modifying surface layer of molded resin An organic compound having an affinity for a resin of a molded resin article and sublimation properties is allowed to penetrate/disperse into the surface of the molded resin article, thereby modifying and/or coloring a resin surface layer. The molded resin article a...	07/18/2006
7041332	Modification method of surface layer of molded resin article, and modification apparatus of surface layer of molded resin article An organic compound having an affinity for a resin of a molded resin article and sublimation properties is allowed to penetrate/disperse into the surface of the molded resin article, thereby modifying and/or coloring a resin surface layer. The molded resin article a...	05/09/2006
7027186	Method for evaluating reproducibility of toning sample by CCM Under the conditions that there are 2 or more samples produced in a CCM toning or visual toning process by which colors are adapted to the target color and respective components such as a coloring agent defining the sample color are registered in a CCM system, the r...	04/11/2006
7001894	Blood flow improvers and thrombosis preventives or remedies Glucosamine salts and derivatives are effective for the improvement of blood flow, and hence, for the prevention and/or treatment of diseases caused by blood flow disturbances, such as thrombosis. Use of glucosamine salts or glucosamine derivatives as active ingredi...	02/21/2006
6989440	Purified chitins and production process thereof A purified chitin has a total content of fatty acids and salts thereof not higher than 0.2 wt. % in terms of fatty acids. The purified chitin can be produced by washing a chitin with at least one solvent selected from the group consisting of organic solvent and wate...	01/24/2006
6936659	Polymer-bonded functional agents Polymer-bonded functional agents are each obtained by reacting a functional agent containing reactive groups with a polymer containing groups reactive with the reactive groups of the functional agent. The functional agent comprises at least one functional agent sele...	08/30/2005
6858312	Aqueous compositions and process for the surface modification of articles by use of the aqueous compositions Use of an aqueous composition, which has been prepared by dissolving (A) dihydroxypropylchitosan and (B) 1,2,3,4-butanetetracarboxylic acid (B) in an aqueous medium, makes it possible to provide articles excellent in hydrophilicity, antibacterial and deodorant activ...	02/22/2005
6821334	Process for producing sulfonated solid particles A process produces a sulfonated solid particle by burning sulfur to yield gaseous sulfur dioxide, subjecting the gaseous sulfur dioxide to catalytic oxidation to yield gaseous sulfur trioxide, and sulfonating a dry powdery or granular solid particle with the gaseous...	11/23/2004

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Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.