Thiazoles Or Oxazoles Patents (Class 252/301.28)
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Patent number: 10317004Abstract: A porous plate-shaped filler is a plate shape having an aspect ratio of 3 or more, and has a minimum length of 0.1 to 50 ?m and a porosity of 20 to 90%. Furthermore, the porous plate-shaped filler 1 includes plate-shaped pores 2 having an aspect ratio of 1.5 or more. Consequently, in the porous plate-shaped filler, a thermal conductivity is low. The heat insulation film includes the porous plate-shaped filler, whereby a heat insulation effect of the heat insulation film can improve.Type: GrantFiled: October 4, 2016Date of Patent: June 11, 2019Assignee: NGK Insulators, Ltd.Inventors: Hiroharu Kobayashi, Takahiro Tomita, Akinobu Oribe
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Patent number: 8986436Abstract: The present invention relates to a new family of luminescent pigments consisting of a salt of two ruthenium(II) complex ions of opposite sign charges comprising N-chelating heterocyclic ligands and to their use in security applications to prevent counterfeiting. The invention also refers to ink compositions and to the security documents or secured goods comprising said luminescent pigments.Type: GrantFiled: February 10, 2012Date of Patent: March 24, 2015Assignee: Fábrica Nacional de Moneda y Timbre—Real Casa de la MonedaInventors: Guillermo Orellana Moraleda, David García Fresnadillo, Paloma Varela García De Oteyza, Javier Gamo Aranda, José Miguel Silván Pobes, Fernando Álvarez Martínez, Andrés Ruiz Quevedo
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Publication number: 20120199250Abstract: A method of preparing an aluminum or aluminum alloy substrate to accept an adherent coating thereon is provided. The method includes the steps of degreasing the substrate, deoxidizing the substrate, and providing a prepaint conversion coating on the degreased and deoxidized substrate. The prepaint conversion coating composition comprises i) a source of fluoride ions; ii) a source of zirconium ions; iii) an acrylic resin; and iv) an optical brightener and forms a colorless, chromium-free conversion coating on the aluminum substrate that can be observed by exposing the treated substrate to UV light.Type: ApplicationFiled: February 4, 2011Publication date: August 9, 2012Inventors: Roberto Zoboli, Sara Salsa, Massimo Garzone
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Patent number: 8119259Abstract: An object is to provide a novel quinoxaline derivative. Another object is to provide a light-emitting element with low driving voltage and less power consumption. Further, another object is to provide a light-emitting device and an electronic device each consuming less power by using the light-emitting element. A quinoxaline derivative represented by a general formula (G11) is provided, in which at least one of carbon at a 2-position and carbon at a 3-position, and carbon at a 2-position of benzoxazole are bound via an arylene group.Type: GrantFiled: November 25, 2008Date of Patent: February 21, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hiroshi Kadoma, Sachiko Kawakami, Satoko Shitagaki, Satoshi Seo
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Patent number: 8021573Abstract: The present invention provides a near-infrared-absorbing material including: a luminescent agent, and a near-infrared-absorbing compound obtained by oxidizing a compound represented by the following formula (II): wherein R211, R212, R221, R222, R231, R232, R241 and R242 each independently represent a hydrogen atom, an aliphatic group or an aromatic group; R203, R213, R223, R233 and R243 each independently represent a substituent group; and n203, n213, n223, n233 and n243 each independently represent an integer from 0 to 4.Type: GrantFiled: August 27, 2007Date of Patent: September 20, 2011Assignee: FUJIFILM CorporationInventors: Keizo Kimura, Katsuyoshi Yamakawa, Osamu Uchida
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Patent number: 8017769Abstract: Benzazole substituted aminobenzenesulfonate derivatives of formula (A) (wherein X, Q and M are as defined in the specification) are useful as components of water-soluble fluorescent inks and dyes invisible in day-light. Novel intermediates for the above compounds are also disclosed.Type: GrantFiled: July 26, 2006Date of Patent: September 13, 2011Inventors: Boris Markovich Bolotin, Yevgeniy Alexeyevich Birgen, Maria Leonardovna Kukushkina, Yelena Viktorovna Yakovleva
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Patent number: 7662639Abstract: The invention relates to a composition for the detection of traces of human or animal blood. The aforementioned composition comprises a luminol compound, an oxidizing agent and a base which are diluted in a preferably aqueous solvent. Said composition is characterized in that: the luminol compound is present in a quantity providing a concentration of between 1 and 20 mmoles/l in the end composition, the oxidizing agent is hydrogen peroxide which is present at a concentration of between 25 and 100 mmoles/l in the end composition, the base is soda, NaOH, which is present at a concentration of between 25 mmoles/l and 500 mmoles/l in the end composition. The invention also relates a kit and a method for preparing said composition. Furthermore, the invention relates to a method of detecting and locating traces of human or animal blood.Type: GrantFiled: April 24, 2003Date of Patent: February 16, 2010Assignee: Roc ImportInventors: Jean-Marc Lefebvre-Despeaux, Loïc Blum
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Publication number: 20080135805Abstract: The invention relates to a fluorescent pigment comprising a) a melamine-formaldehyde polycondensation product, b) a distyryl biphenyl fluorescent whitening agent (FWA) of the formula (1), in which R1 represents hydrogen, chlorine or C1-C4alkoxy and M represents hydrogen, an alkaline or alkaline earth metal, ammonium or ammonium that is mono-, di-, tri- or tetrasubstituted by C1-C4alkyl or C2-C4hydroxyalkyl and, optionally, c) at least one additional fluorescent whitening agent, a process for its preparation and use thereof for the fluorescent whitening of paper, especially in coating.Type: ApplicationFiled: August 3, 2005Publication date: June 12, 2008Inventors: Fabienne Cuesta, Ted Deisenroth, Kamalesh Pai Fondekar, Ramachandra V. Joshi, Peter Rohringer, Uma Ganeshram, Josef Zelger
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Patent number: 6866795Abstract: An ultraviolet-absorbing film comprising a fluorescent brightening agent and having a transmission of the rays of 410 nm or less of 90% or less, wherein the fluorescent brightening agent is represented by the following formula (I): wherein R1 and R4 each represents a hydrogen atom, an alkyl group or an alkoxyl group; R2 and R3 each represents an alkyl group; and [A] represents a substituted aryl or substituted ethenyl group.Type: GrantFiled: December 8, 2003Date of Patent: March 15, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Takashi Usami, Teruo Nagano, Tadahisa Sato, Katsuyoshi Yamakawa
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Patent number: 6821649Abstract: In an organic EL device comprising a cathode, an anode, and two or more stacked organic layers therebetween including a light emitting layer, an electron injecting organic layer containing an organic salt or complex of a metal having a standard electrode potential of more negative than −1.8 V at 25° C. is formed close to the cathode by coating, and an organic layer containing a high molecular weight EL material is disposed close to the electron injecting organic layer. A multilayer structure of organic layers can be formed by coating, and the organic EL device has a high luminance, high efficiency, high reliability, long life and ease of handling.Type: GrantFiled: August 19, 2002Date of Patent: November 23, 2004Assignee: TDK CorporationInventors: Emiko Kambe, Masahiro Shinkai
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Patent number: 6682662Abstract: A fluorescent lamp cover which comprises a transparent resin containing a fluorescent brightening agent so as to cut off 90% or more of the rays of 410 nm or less, wherein the fluorescent brightening agent is represented by the following formula (I): wherein R1 and R4 each represents a hydrogen atom, an alkyl group or an alkoxyl group; R2 and R3 each represents an alkyl group; and [A] represents a substituted aryl or substituted ethenyl group.Type: GrantFiled: July 31, 2001Date of Patent: January 27, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Takashi Usami, Teruo Nagano, Tadahisa Sato, Katsuyoshi Yamakawa
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Patent number: 6461747Abstract: Disclosed is a material for a light emitting device excellent in color purity, good in light emitting characteristics and excellent in stability, which consists of a compound represented by the following general formula (I): L&Parenopenst;A)m (I) wherein A represents a heterocyclic group in which two or more aromatic heterocycles are condensed; m represents an integer of 2 or more, and the heterocyclic groups represented by A may be the same or different; and L represents a connecting group.Type: GrantFiled: July 21, 2000Date of Patent: October 8, 2002Assignee: Fuji Photo Co., Ltd.Inventors: Hisashi Okada, Toshihiro Ise
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Publication number: 20020040976Abstract: A fluorescent lamp cover which comprises a transparent resin containing a fluorescent brightening agent so as to cut off 90% or more of the rays of 410 nm or less, wherein the fluorescent brightening agent is represented by the following formula (I): 1Type: ApplicationFiled: July 31, 2001Publication date: April 11, 2002Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Takashi Usami, Teruo Nagano, Tadahisa Sato, Katsuyoshi Yamakawa
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Patent number: 6274065Abstract: Preparation of a solid fluorescent composition comprising (1) mixing a host chromophore and an effective amount of a pigment precursor in a solvent, then generating a pigment as guest chromophore in-situ from the pigment precursor, and, subsequently, isolating the mixture of the host and guest chromophores, thereby forming a solid solution, or (2) mixing a polymer as a matrix or a polymer precursor and a pigment precursor in a solvent, if desired in the presence of a chromophore being a host component, then generating a pigment in-situ from the pigment precursor (being the guest component if a host component is present), and, subsequently, isolating the mixture of polymer and pigment, and—if present—the host component, thereby forming a solid solution, wherein in all cases where there is a host component, the absorption spectrum of the pigment (guest chromophore) overlaps with the fluorescence emission spectrum of the host chromophore.Type: GrantFiled: February 3, 1998Date of Patent: August 14, 2001Assignee: Ciba Specialty Chemicals CorporationInventors: Takashi Deno, Kunihiko Kodama, Abul Iqbal, Brian Gerrard Devlin