Patents Assigned to Nippon Kayaku Kabushiki-Kaisha
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Publication number: 20180029018Abstract: Provided is a catalyst for manufacturing an unsaturated aldehyde and/or an unsaturated carboxylic acid, which is prepared by a method in which a molybdenum component raw material is composed of only an ammonium molybdate, the weight of water for dissolution is 8.5 times or less relative to the weight of molybdenum contained in the ammonium molybdate; and a bismuth component raw material is composed of only bismuth nitrate, the weight of a nitric acid aqueous solution for dissolution is 2.3 times or more relative to the weight of bismuth contained in the bismuth nitrate, and a nitric acid concentration in the nitric acid aqueous solution for dissolving the bismuth nitrate is 10% by weight or more.Type: ApplicationFiled: February 25, 2016Publication date: February 1, 2018Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Tomoyuki KAWAMURA, Motohiko SUGIYAMA, Ryota HIRAOKA
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Publication number: 20180029019Abstract: Provided are a catalyst which, in a reaction. for producing a conjugated diolefin by catalytic oxidative dehydrogenation from a mixed gas including a monoolefin having 4 or more carbon atoms and molecular oxygen, may suppress the production of a coke-like substance and improve the long-term stability of the reaction; and a method for producing the same. Disclosed is a composite metal oxide catalyst for producing a conjugated diolefin by a gas phase catalytic oxidative dehydrogenation reaction from a mixed gas including a monoolefin having 4 or more carbon atoms and molecular oxygen, the composite metal oxide catalyst having a solid acidity of 35 to 172 ?mol/g.Type: ApplicationFiled: March 2, 2016Publication date: February 1, 2018Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Yuuta NAKAZAWA, Shigeki OKUMURA, Hiroki MOTOMURA, Bungo NISHIZAWA, Koji NAKAYAMA
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Patent number: 9855339Abstract: Provided is a pharmaceutical preparation composition comprising a polymerized camptothecin derivative which is obtained by bonding a camptothecin derivative to a polymer carrier, and has nanoparticle-forming properties of associating in an aqueous solution, the pharmaceutical preparation composition having enhanced preparation stability. Particularly, a pharmaceutical preparation maintaining nanoparticle-forming properties, which are an important factor, and having an excellent storage stability is provided. Disclosed is a pharmaceutical preparation comprising a block copolymer in which a polyethylene glycol segment is linked to a polyglutamic acid segment containing a glutamic acid unit having a camptothecin derivative bonded thereto, the pharmaceutical preparation capable of forming associates in an aqueous solution. When the pharmaceutical preparation is made into an aqueous solution containing the camptothecin derivative at a concentration of 1 mg/mL, the pH of the aqueous solution is 2.4 to 7.Type: GrantFiled: October 16, 2015Date of Patent: January 2, 2018Assignee: Nippon Kayaku Kabushiki KaishaInventors: Shinya Fujita, Shin Aoki
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Patent number: 9859508Abstract: [Problem] To provide: a novel compound which has high mobility and on/off ratio and is useful for organic electronic devices; and a method for producing the compound. [Solution] A condensed polycyclic aromatic compound which is represented by general formula (1). (In the formula, A represents a 1,5-dihydronaphthalene ring or a 2,6-dihydronaphthalene ring; each of R1, R2, R3 and R4 independently represents a hydrogen atom, a halogen atom, a substituted or unsubstituted aliphatic hydrocarbon group, a substituted or unsubstituted alicyclic hydrocarbon group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted hydrocarbon oxy group, a substituted or unsubstituted ester group, a substituted or unsubstituted acyl group, or a substituted or unsubstituted cyano group; and each of X1 and X2 independently represents an oxygen atom, a sulfur atom or a selenium atom.Type: GrantFiled: February 27, 2014Date of Patent: January 2, 2018Assignee: Nippon Kayaku Kabushiki KaishaInventors: Kazuo Takimiya, Shoji Shinamura, Masahiro Hamada, Yuichi Sadamitsu
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Patent number: 9857685Abstract: The purpose of the present invention is to provide: a resin composition, a cured product of which has extremely low residual stress and exhibits excellent adhesion to a metal substrate such as a Pt, LT or Ta substrate after a wet heat test in the fields of semiconductors and MEMS/micromachine applications; a laminate of this resin composition; and a cured product of this resin composition or the laminate. The present invention is a photosensitive resin composition which contains an epoxy resin (A), a compound having a phenolic hydroxyl group (B) and a cationic photopolymerization initiator (C), and wherein: the epoxy resin (A) has a weighted average epoxy equivalent weight of 300 g/eq. or more; 20% by mass or more of the epoxy resin (A) is an epoxy resin represented by formula (1) and having an epoxy equivalent weight of 500-4,500 g/eq.; and the compound having a phenolic hydroxyl group (B) contains a phenolic compound having a specific structure.Type: GrantFiled: June 9, 2015Date of Patent: January 2, 2018Assignee: Nippon Kayaku Kabushiki KaishaInventors: Naoko Imaizumi, Yoshiyuki Ono, Takanori Koizumi, Maki Kumagai, Shinya Inagaki
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Patent number: 9855261Abstract: The purpose of the present invention is to provide a polymeric compound in which a camptothecin compound and an anti-cancer effect enhancer, particularly a PARP inhibitor, are bound to a single molecule, whereby it becomes possible to reduce the toxicity to normal cells and deliver and release the two components to an affected area with high efficiency to thereby improve the pharmacological efficacy of the two components. Provided is a polymeric compound represented by general formula (1).Type: GrantFiled: October 31, 2013Date of Patent: January 2, 2018Assignee: Nippon Kayaku Kabushiki KaishaInventors: Keiichiro Yamamoto, Manami Okazaki
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Publication number: 20170350856Abstract: A field effect transistor and a sensor using the field effect transistor is provided. The field effect transistor can be manufactured so as to have uniform properties by simple steps at low costs, and can stably detect, when used as a sensor, a very small amount of analyte with a high sensitivity while the properties are hardly deteriorated. A channel of the field effect transistor is constituted by a single-walled carbon nanotube thin film that is grown, by a chemical vapor deposition method, using particles of a nonmetallic material as growth nuclei, the nonmetallic material containing 500 mass ppm or less metallic impurities that contain a metal and its compounds.Type: ApplicationFiled: August 6, 2015Publication date: December 7, 2017Applicants: NIPPON KAYAKU KABUSHIKI KAISHA, OSAKA UNIVERSITYInventors: Yoshihiro KOBAYASHI, Ryota NEGISHI, Hiroto KASE, Michiharu ARIFUKU, Noriko KIYOYANAGI, Tomio MORINO
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Publication number: 20170306092Abstract: Problem to be Solved One of the objects of the resent invention is to provide a new polybenzoxazine compound that can afford a cured product having excellent toughness, heat resistance and flame retardance without using other components together. Solution A benzoxazine compound represented by formula (1): wherein n is an average repeating number and represents a real number of 1 to 5; R1 to R8 each independently represent a hydrogen atom, a halogen atom, an alkyl group having a carbon number of 1 to 8 or an aryl group; when n is 2 or more and the number of each R3 to R7 is 2 or more, each R3 to R7 may be the same or different; and R9 represents a residue of a monoamine compound from which an amino group is removed.Type: ApplicationFiled: March 22, 2017Publication date: October 26, 2017Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Tsutomu TAKEICHI, Tsubasa OHSAWA, Takuto MORI, Kazunori ISHIKAWA, Koju IWASAKI
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Patent number: 9796727Abstract: A heterocyclic compound represented by formula (1) and a field effect transistor having a semiconductor layer comprising the compound. (In the formula, X1 and X2 each independently represents a sulfur atom or a selenium atom, and R1 and R2 each independently represents a C5-16 alkyl.Type: GrantFiled: February 25, 2010Date of Patent: October 24, 2017Assignee: Nippon Kayaku Kabushiki KaishaInventors: Hirokazu Kuwabara, Masaaki Ikeda, Kazuo Takimiya
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Publication number: 20170293225Abstract: Provided is a photosensitive resin composition that contains (A) a photobase generator and (B) an alkali-soluble epoxy compound, wherein the photobase generator (A) contains a compound represented by formula (2-1) and the alkali-soluble in epoxy compound (B) is an epoxy compound obtained by reacting (c) a polybasic acid anhydride with a product of a reaction between (a) an epoxy compound having two or more epoxy groups in the molecule and (b) a compound having one or more by hydroxyl groups and one carboxyl group in the molecule.Type: ApplicationFiled: September 29, 2015Publication date: October 12, 2017Applicants: Tokyo University of Science Foundation, NIPPON KAYAKU KABUSHIKI KAISHAInventors: Koji ARIMITSU, Kiwamu TERADA
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Patent number: 9777107Abstract: An epoxy resin represented by the following formula (1) wherein R1 represents an alkylene group having 2 to 6 carbon atoms and optionally containing an ester or ether bond; R2 represents a monovalent aliphatic hydrocarbon group having 1 to 6 carbon atoms or a monovalent aromatic hydrocarbon group having 6 to 12 carbon atoms; R3 represents an oxygen atom or a phenylene group; k represents 1 to 10 as an average value; m represents an integer of 0 to 2; n represents 0 to 10 as an average value; and a plurality of groups R1, R2, R3, k, or m present in the formula may be the same or different from each other.Type: GrantFiled: September 19, 2014Date of Patent: October 3, 2017Assignees: Shin-Etsu Chemical Co., Ltd., Nippon Kayaku Kabushiki KaishaInventors: Toshio Shiobara, Junichi Sawada, Miyuki Wakao, Tsutomu Kashiwagi, Naofusa Miyagawa, Yoshihiro Kawada, Chie Sasaki, Masataka Nakanishi, Kenichi Kuboki
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Patent number: 9751822Abstract: The present invention relates to a method for producing an unsaturated carboxylic acid using a catalyst having both a high catalytic performance and a high mechanical strength, and in the method, a supported catalyst obtained by feeding a liquid binder component and a catalytic active component containing molybdenum and vanadium and/or a precursor thereof into a rolling granulator and conducting granulation at a relative centrifugal acceleration of 0.5 G or more and 30 G or less is used.Type: GrantFiled: October 7, 2014Date of Patent: September 5, 2017Assignee: Nippon Kayaku Kabushiki KaishaInventors: Tatsuhiko Kurakami, Hideomi Sakai, Toru Toki
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Publication number: 20170231088Abstract: Provided is a double-sided circuit substrate being a laminate of: a composite material comprising a fluorine resin and a glass cloth; and a copper foil having a two-dimensional roughness Ra in a mat surface (a surface that comes in contact with the resin) of less than 0.2 ?m. Ideally, a surface of the fluorine resin has an O content of at least 1.0%, as observed using ESCA.Type: ApplicationFiled: August 5, 2015Publication date: August 10, 2017Applicants: NIPPON KAYAKU KABUSHIKI KAISHA, DAIKIN INDUSTRIES, LTD.Inventors: Yasumasa AKATUKA, Shigeru MOTEKI, Hirokazu KOMORI, Takeshi INABA
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Publication number: 20170210333Abstract: A gas generator includes a housing and a partition portion dividing a space in the housing into a combustion chamber accommodating a gas generating agent and a filter chamber accommodating a filter. The partition portion includes a first region which opens at the time of activation by being located to be opposed to a hollow portion of the filter and an annular second region which does not open even at the time of activation by being located to be opposed to a portion of an axial end surface of the filter except for the hollow portion. The second region is provided with a large-thickness portion constructed to be greater in thickness than the first region and opposed to an outer edge portion of the axial end surface of the filter, and the large-thickness portion is constructed to gradually be greater in thickness from an inner circumferential end portion toward an outer circumferential end portion.Type: ApplicationFiled: July 23, 2015Publication date: July 27, 2017Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Takahiro IMAI, Dairi KUBO
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Patent number: 9684239Abstract: The purpose of the present invention is to provide: a photosensitive epoxy resin composition and/or a resist laminate of said resin composition that makes it possible to use photolithography to form an image having a vertical sidewall shape and fine resolution, low stress, and heat/humidity resistance; and a cured product of said resin composition and said resist laminate. The present invention is a photosensitive resin composition comprising: (A) an epoxy resin; (B) a polyphenol compound having a specific structure; (C) a photocationic polymerization initiator; and (D) an epoxy group-containing silane compound. The epoxy resin (A) comprises: an epoxy resin (a) obtained by reacting a phenol derivative that is represented by formula (1) with an epihalohydrin; and an epoxy resin (b) that is represented by formula (2).Type: GrantFiled: October 25, 2013Date of Patent: June 20, 2017Assignee: Nippon Kayaku Kabushiki KaishaInventors: Naoko Imaizumi, Shinya Inagaki, Nao Honda
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Patent number: 9675521Abstract: [Problem] There has been a requirement for a process for producing a pharmaceutical preparation that is obtained by encapsulating a uniform poorly water-soluble drug in a block copolymer, and dissolves immediately with an addition of water, and does not contain residues of organic solvents. [Solution] Provided is a method for producing a drug-block copolymer composite, the method comprising: mixing a poorly water-soluble drug and a block copolymer including a hydrophilic segment and a hydrophobic segment bonded together, in one or more non-aqueous solvents; optionally heating the mixture as necessary; and spray-drying the resulting mixture liquid.Type: GrantFiled: August 31, 2011Date of Patent: June 13, 2017Assignee: Nippon Kayaku Kabushiki KaishaInventor: Jun Motoyama
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Publication number: 20170160566Abstract: [Problem] The present invention provides eyewear, such as polarized sunglasses, having cholesteric liquid crystal layers, wherein the eyewear has a metallic tone and antiglare properties, minimizes the reduction in light-polarizing element absorptive capability that is associated with circular polarization, and is moreover unaffected by external degrading factors such as sebum, moisture, and salt air. [Solution] This optical film is characterized by being provided with a light-reflecting layer R comprising a cholesteric liquid crystal layer that has right-handed helical orientation, a light-reflecting layer L comprising a cholesteric liquid crystal layer that has left-handed helical orientation, and a polarizing element layer.Type: ApplicationFiled: June 23, 2015Publication date: June 8, 2017Applicants: NIPPON KAYAKU KABUSHIKI KAISHA, MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.Inventors: Kouichi TANAKA, Yoshiyuki YAHAGI, Hideyoshi FUJISAWA, Takuya GOTOU, Katsuyuki MURAI, Kazuhisa MITSUHATA, Kyousuke NAKAMURA
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Patent number: 9656248Abstract: Provided is a catalyst having high activity and yield of a target product for producing an unsaturated aldehyde and/or an unsaturated carboxylic acid and further having high mechanical strength. The catalyst is a catalyst prepared by a method in which a catalyst formulation satisfies specified atomic ratios; and in the preparation thereof, a molybdenum component raw material is an ammonium molybdate, a solvent for dissolving the ammonium molybdate is water, a bismuth component raw material is bismuth nitrate, and a solvent for dissolving bismuth nitrate is a nitric acid aqueous solution, and the weight of water for dissolving the ammonium molybdate, the weight of the nitric acid aqueous solution for dissolving the bismuth nitrate, and the acid concentration of the nitric acid aqueous solution are satisfied with specified ranges, respectively.Type: GrantFiled: May 8, 2014Date of Patent: May 23, 2017Assignee: Nippon Kayaku Kabushiki KaishaInventors: Yuuta Nakazawa, Yoshiko Shoya, Masaki Nakahara, Eiji Nishimura, Kazuo Shiraishi, Tatsuhiko Kurakami, Ryota Hiraoka
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Patent number: 9656626Abstract: A gas generator includes a lower shell as a housing, an igniter including a squib cup and a plug, and a fixing portion formed from a resin molding for fixing the igniter to the lower shell. The squib cup includes a contact portion in contact with the plug and a non-contact portion not in contact with the plug. The fixing portion includes a cover portion secured to an outer circumferential surface of the squib cup, and the cover portion has a lower-side annular cover portion covering a part of the contact portion and an upper-side annular cover portion covering a part of the non-contact portion. A thickness t2 of the upper-side annular cover portion is smaller than a thickness t1 of the lower-side annular cover portion, and the cover portion is formed in a stepped shape having a substantially two-dimensionally annular step-formed surface orthogonal to an axial direction of the squib cup.Type: GrantFiled: March 28, 2014Date of Patent: May 23, 2017Assignee: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Satoshi Ohsugi, Akinori Matsumoto, Masahiro Yamaguchi
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Publication number: 20170137647Abstract: An aqueous pigment ink composition having high scratch resistance and good ejection properties and redispersibility, an ink jet recording method using the aqueous pigment ink composition, and a colored substance including the aqueous pigment ink composition. The ink composition includes a colorant, a resin, and water. The colorant includes a coloring matter that is substantially insoluble in water. The resin is a polymer produced by polymerization of at least one monomer represented by the following formula (1) in which R1 denotes a hydrogen atom or a methyl group, and R2 denotes a methyl group, a C8 alkyl group, or the like.Type: ApplicationFiled: March 26, 2015Publication date: May 18, 2017Applicant: Nippon Kayaku Kabushiki KaishaInventors: Akira KAWAGUCHI, Maiko IUCHI, Ha SAI, Toru ISHII