Patents Assigned to Nippon Kayaku Kabushiki-Kaisha
  • Patent number: 8865392
    Abstract: Disclosed is a photosensitive resin composition containing a cationic photopolymerization initiator (A) and an epoxy resin (B) having two or more epoxy groups in each molecule, which is characterized in that the cationic photopolymerization initiator (A) is a cationic photopolymerization initiator (A-1) that is represented by formula (1).
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: October 21, 2014
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Misato Oonishi, Naoko Imaizumi, Ryo Sakai, Nao Honda, Tadayuki Kiyoyanagi
  • Publication number: 20140299020
    Abstract: A water-based black ink composition which, when used in inkjet recording and writing tools, can provide recorded matter that exhibits excellent color development, light fastness, resistance to ozone gas, moisture and water, and accommodation characteristics to a sensor, and excellent solubility and therefore can be stably stored in the form of a recording fluid; and an inkjet recording method and a colored body, using the same. The water-based black ink composition contains C.I. Acid Black 2 as a colorant component. The inkjet recording method uses the water-based black ink composition, while the colored body is a body colored with the water-based black ink composition.
    Type: Application
    Filed: August 24, 2012
    Publication date: October 9, 2014
    Applicant: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Shinsuke Shimizu, Takahiko Matsui, Shinya Nagatsuka
  • Publication number: 20140288244
    Abstract: Providing a method for producing a compound represented by formula (1) from a compound represented by formula (2), by which the additive amount of an aryl (C1-C8) alkyl alcohol which may have a substituent and the amount of residual carboxyl groups of pAsp (polyaspartic acid) are controlled. A production method including obtaining a compound represented by formula (1) by allowing a compound represented by formula (2) to react with an aryl (C1-C8) alkyl alcohol which may have a substituent, and a carbodiimide-based compound in an amount of 2(x+y) equivalents or more relative to the amount of carboxyl groups in formula (2) (sum of x and y), in a solvent at 15° C. to 30° C. for 2 hours to 48 hours, is used.
    Type: Application
    Filed: August 31, 2012
    Publication date: September 25, 2014
    Applicant: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Keiichirou Yamamoto, Masayuki Kitagawa
  • Publication number: 20140248498
    Abstract: The present invention relates to a method for producing an optical member, in which at least two optical substrates, of which at least either has a light shielding portion, are bonded to each other using an ultraviolet ray cured resin composition containing (A) a (meth)acrylate and (B) a photopolymerization initiator, the method having specific Process 1 to Process 3, an optical member obtained by the producing method, the use of an ultraviolet ray cured resin composition containing (A) a (meth)acrylate and (B) a photopolymerization initiator, and the ultraviolet ray cured resin composition.
    Type: Application
    Filed: October 19, 2012
    Publication date: September 4, 2014
    Applicant: Nippon Kayaku Kabushiki Kaisha
    Inventors: Daisuke Kobayashi, Hayato Motohashi, Yuichiro Matsuo
  • Patent number: 8808749
    Abstract: A polymer conjugate of a physiologically active substance, which enables drug release independent of a biological enzyme and can be expected to have a high therapeutic effect, is demanded.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: August 19, 2014
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Masayuki Kitagawa, Chieko Seno, Keiko Ebara, Kazutoshi Takashio
  • Publication number: 20140218628
    Abstract: [Object] A polarizing element and polarizing plate having improved optical properties and durability.
    Type: Application
    Filed: September 5, 2012
    Publication date: August 7, 2014
    Applicants: POLATECHNO CO., LTD., NIPPON KAYAKU KABUSHIKI KAISHA
    Inventor: Noriaki Mochizuki
  • Publication number: 20140218666
    Abstract: [Object]A polarizing element and polarizing plate having improved optical properties and durability. [Solution]A polarizing element comprising a film containing a compound represented in the following formula (I) or a salt thereof and a polyvinyl alcohol-based resin having a degree of polymerization from 5,000 to 10,000 (wherein R1 to R4 each individually represent a hydrogen atom, a lower alkyl group, or a lower alkoxyl group; and n represents 1-3).
    Type: Application
    Filed: September 5, 2012
    Publication date: August 7, 2014
    Applicants: POLATECHNO CO., LTD., NIPPON KAYAKU KABUSHIKI KAISHA
    Inventor: Noriaki Mochizuki
  • Publication number: 20140218797
    Abstract: [Object] A polarizing element and polarizing plate having improved optical properties and durability. [Solution] A polarizing element characterized in comprising a polyvinyl alcohol resin film adsorbing at least one dichromatic pigment that is a compound represented by formula (I) or a salt thereof as a free acid, and being stretched, wherein the polyvinyl alcohol resin has a degree of polymerization of 5,000 to 10,000: (wherein A represents a phenyl group or a naphthyl group having a substituent; R1-R6 each independently represent a hydrogen atom, a hydroxyl group, a lower alkyl group, a lower alkoxy group, a sulfo group, or a lower alkoxy group having a sulfo group; X represents an amino group optionally having a substituent, a benzoylamino group optionally having a substituent, a phenylamino group optionally having a substituent, a phenylazo group optionally having a substituent, or a naphthotriazole group optionally having a substituent; and m represents 0 or 1).
    Type: Application
    Filed: September 5, 2012
    Publication date: August 7, 2014
    Applicants: POLATECHNO CO., LTD., NIPPON KAYAKU KABUSHIKI KAISHA
    Inventor: Noriaki Mochizuki
  • Publication number: 20140206527
    Abstract: An object of the present invention is to provide a catalyst for glycerin dehydration reaction for producing unsaturated aldehyde and unsaturated carboxylic acid at higher yield by a dehydration reaction of glycerin, and that can reduce a decrease in time of the conversion ratio of glycerin and the yields of unsaturated aldehyde and of unsaturated carboxylic acid. Another object of the present invention is to provide a catalyst for glycerin dehydration reaction that can produce acrolein and acrylic acid at higher yield by the dehydration reaction of glycerin, and the catalyst has a longer life. Still another object of the present invention is to provide a method for preparing the catalysts above.
    Type: Application
    Filed: July 30, 2012
    Publication date: July 24, 2014
    Applicant: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Kimito Okumura, Yasushi Kobayashi, Ryota Hiraoka, Jean-Luc Dubois
  • Patent number: 8771378
    Abstract: Disclosed is an azo compound represented by the general formula (1) or a salt thereof: wherein R1 and R2 independently represent a hydrogen atom, a lower alkyl group or a lower alkoxy group; and n represents 1 or 2. Also disclosed are a dye-containing polarizing film and a dye-containing polarizing plate, each of which comprises a polarizing film base material and the azo compound contained in the base material.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: July 8, 2014
    Assignees: Nippon Kayaku Kabushiki Kaisha, Polatechno Co., Ltd.
    Inventors: Yuichi Sadamitsu, Takuto Nishiguchi, Hiroaki Ohno
  • Publication number: 20140186765
    Abstract: An alkali-developing-type photosensitive resin composition comprising: a polycarboxylic acid resin (A) obtained by reacting a polybasic anhydride (c) with a reactant (ab) between a difunctional bisphenol epoxy resin (a) having an epoxy group at both terminals and an epoxy equivalent of 600-1300 g/eq., and a monocarboxylic acid compound (b) having an alcoholic hydroxyl group; an epoxy resin (B) having two or more epoxy groups in a molecule; and a photoacid generator (C), wherein the addition ratio the monocarboxylic acid compound (b) with respect to 1 equivalent of the epoxy group of the epoxy resin (a) is 80 equivalent % or more, and the addition ratio the polybasic anhydride with respect to one equivalent of the primary hydroxyl group of the reactant (ab) is 80 equivalent % or more.
    Type: Application
    Filed: July 26, 2012
    Publication date: July 3, 2014
    Applicant: NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Misato Oonishi, Shinya Inagaki, Naoko Imaizumi, Nao Honda
  • Patent number: 8753832
    Abstract: In quickly assaying a blood component interfered by glucose and/or its derivative on the bedside or in a clinic or in assaying the same by a patient in his/her own home, there has been required an assay method wherein the whole blood can be used as a sample as such without resorting to a centrifuge or the like. A method of assaying a blood component to be used for assaying a blood component interfered by glucose and/or its derivative, characterized by comprising bringing the whole blood into contact with a substance capable of converting glucose and/or its derivative into another substance not interfering the assay and, simultaneously or subsequently, separating blood cells; a device to be used in the assay method; and a kit containing this device.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: June 17, 2014
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Yoshihiko Umegae, Reiko Machida, Yayoi Irie, Toshio Tanabe
  • Patent number: 8741046
    Abstract: A water-based black ink composition which exhibits a low intensity, colorless and neutral black color and provides a black recorded image the printed image of which has high density. The ink composition includes at least one compound represented by formula (1) or a salt thereof and an azo compound having ?max within the range of 550-660 nm. In the formula (1), R1 to R8 independently represent a hydrogen atom; a halogen atom; a sulfo group; a carboxy group; a sulfamoyl group; a carbamoyl group; a C1-C4 alkyl group; a C1-C4 alkoxy group; and a C1-C4 alkoxy group substituted with at least one group selected from a group consisting of a hydroxy group, a C1-C4 alkoxy group, a hydroxy C1-C4 alkoxy group, a sulfo group and a carboxy group. X represents a bivalent cross-linking group.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: June 3, 2014
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Akira Kawaguchi, Takahiko Matsui, Takashi Yoshimoto, Kenji Ooshima
  • Patent number: 8741045
    Abstract: An aqueous black ink composition which enables the formation of an excellent black recorded image having extremely high ozone gas resistance and a neutral and achromatic color. The ink composition comprises: a dye which includes at least one compound represented by specific formula (1) or at least one tautomer or salt of the compound; a dye which includes at least one compound represented by specific formula (3) or at least one tautomer or salt of the compound; and a dye which includes at least one compound represented by specific formula (4) or at least one tautomer or salt of the compound.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: June 3, 2014
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Akira Kawaguchi, Takahiko Matsui, Takashi Yoshimoto, Kenji Ooshima
  • Patent number: 8735720
    Abstract: Disclosed is a photoelectric conversion device wherein a methine dye represented by the formula (1) below is supported by a thin film of oxide semiconductor particles arranged on a substrate. Also disclosed is a solar cell manufactured by using such a photoelectric conversion device. (In the formula (1), n represents an integer of 0-5; m represents an integer of 0-5; R1-R4 independently represent a hydrogen atom, an optionally substituted aromatic residue, an optionally substituted aliphatic hydrocarbon residue or the like; X and Y independently represent a hydrogen atom; an optionally substituted aromatic residue, an optionally substituted aliphatic hydrocarbon residue or the like; Z represents an oxygen atom, a sulfur atom or the like; A1, A2, A3, A4 and A5 independently represent a hydrogen atom, an optionally substituted aromatic residue, an optionally substituted aliphatic hydrocarbon residue or the like; and rings a, b and c may be substituted.).
    Type: Grant
    Filed: March 1, 2007
    Date of Patent: May 27, 2014
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Koichiro Shigaki, Masayoshi Kaneko, Takayuki Hoshi, Teruhisa Inoue
  • Publication number: 20140142167
    Abstract: Micellar preparation in which the solubility of a sparingly water-soluble anticancer agent has been heightened and which after intravenous administration, enables a high blood concentration to be maintained. The preparation has high medicinal activity and/or reduced side effects, and is formed from a block copolymer represented by formula (1): [wherein R1 represents hydrogen or C1-5 alkyl; R2 represents C1-5 alkylene; R3 represents methylene or ethylene; R4 represents hydrogen or C1-4 acyl; R5 represents hydroxyl, optionally substituted aryl C2-8 alkoxyl, substituted C1-4 alkylamino, or amino having a residue of either an amino acid or a peptide derivative; n is an integer of 5 to 1,000; m is an integer of 2 to 300; and x is an integer of 1 to 300; provided that the proportion of hydroxy in the R5's is 0 to 99% and x is not larger than m] and a sparingly water-soluble anticancer agent.
    Type: Application
    Filed: December 17, 2013
    Publication date: May 22, 2014
    Applicants: Nanocarrier Kabushiki Kaisha, Nippon Kayaku Kabushiki Kaisha
    Inventors: Kazuhisa Shimizu, Toshitaka Murata, Katsuhiko Sagawa
  • Patent number: 8730580
    Abstract: A light diffusion cell for laser light where in a transparent cell in which a liquid can be sealed, a fine particle dispersion in which fine particles having an average particle size of 100 nm or more and 1.5 ?m or less are colloidally dispersed in a liquid medium transmitting light, a same light diffusion cell including a reflection mechanism recursively using reflection light of incident light, a laser light source device including the light diffusion cell and a semiconductor laser light source and an image display device including the light diffusion cell or the laser light source device, and the light diffusion cell significantly reduces or removes speckle noise of semiconductor laser light. In addition, the light diffusion cell has an easy constitution, occupies a smaller volume and can be easily incorporated in any type of image display device using laser light.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: May 20, 2014
    Assignees: Nippon Kayaku Kabushiki Kaisha, Polatechno Co., Ltd.
    Inventor: Hideyoshi Fujisawa
  • Publication number: 20140126054
    Abstract: To provide a polarizing element having a good polarizing property, and having a property of no discoloration by a treatment solution or pH of an adhesive. Provided is a polarizing element that comprises a film of a polyvinyl alcohol resin or a derivative thereof containing a disazo pigment represented by Formula (1), and having been stretched by a factor of at least three from the initial length, in which the polarizing element has the lowest transmissivity at 565 to 700 nm in the transmissivity when two pieces of polarizing plates having the polarizing element are superimposed such that the absorption-axis directions orthogonally intersect.
    Type: Application
    Filed: May 22, 2012
    Publication date: May 8, 2014
    Applicants: POLATECHNO CO., LTD., NIPPON KAYAKU KABUSHIKI KAISHA
    Inventors: Noriaki Mochizuki, Takahiro Higeta, Takuto Nishiguchi
  • Patent number: 8716523
    Abstract: A method for manufacturing a catalyst of which active components are partly neutralized salt of heteropoly acid comprising molybdenum, phosphorus, vanadium, cesium, antimony, and ammonia as essential components, wherein the method is characterized in mixing an antimony compound with a complex oxide of the essential active components in the catalyst containing active components other than antimony, wherein the antimony compound may be added during slurry preparation.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: May 6, 2014
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Atsushi Sudo, Tatsuhiko Kurakami, Toshitake Kojima, Shigeo Hayashimoto
  • Patent number: 8703878
    Abstract: Enzymes in the body vary among different species, and also vary among individuals of the same species. Thus, it has been demanded to develop a novel steroid-containing pharmaceutical preparation which can release a drug in a manner independent of the enzymes present in the body, and which is expected to have an efficacious therapeutic effect. Disclosed is a high-molecular weight conjugate of a steroid, comprising a structure in which a carboxylic acid group of a polymer having a polyethylene glycol moiety and a succinic acid monoamide moiety having two or more succinic acid monoamide units is ester-bonded to a hydroxy group in the steroid.
    Type: Grant
    Filed: September 26, 2008
    Date of Patent: April 22, 2014
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Masayuki Kitagawa, Toshitaka Murata