Electromagnetic Wave Absorbing Composition Or Process Of Preparing (excludes Visible, Ir Or Uv Portions Of Spectrum) Patents (Class 523/137)
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Patent number: 11678470Abstract: According to various aspects, exemplary embodiments are disclosed of thermally-conductive EMI absorbers that generally includes thermally-conductive particles, EMI absorbing particles, and silicon carbide. The silicon carbide is present in an amount sufficient to synergistically enhance thermal conductivity and/or EMI absorption. By way of example, an exemplary embodiment of a thermally-conductive EMI absorber may include silicon carbide, magnetic flakes, manganese zinc ferrite, alumina, and carbonyl iron.Type: GrantFiled: January 17, 2022Date of Patent: June 13, 2023Assignee: Laird Technologies, Inc.Inventors: Hoang Dinh Do, Robert Howard Boutier, Jr., Jason L. Strader, Michael S. Plante
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Patent number: 11587705Abstract: Provided is an electromagnetic-wave absorber composition and an electromagnetic-wave absorber that can favorably absorb a plurality of electromagnetic waves of different frequencies in a high frequency band in or above the millimeter-wave band. The electromagnetic-wave absorber composition includes a magnetic iron oxide that magnetically resonates at a high frequency in or above the millimeter-wave band and a resin binder. The electromagnetic-wave absorber composition has two or more extrema separated from each other on a differential curve obtained by differentiating a magnetic property hysteresis loop at an applied magnetic field intensity of from 16 kOe to ?16 kOe. The electromagnetic-wave absorber includes an electromagnetic-wave absorbing layer formed of the above-described electromagnetic-wave absorber composition.Type: GrantFiled: September 12, 2018Date of Patent: February 21, 2023Assignee: Maxell, Ltd.Inventors: Masao Fujita, Toshio Hiroi
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Patent number: 11587691Abstract: A radiation shielding material that is lighter and has lower installation restrictions than conventional methods, and that exhibits excellent shielding efficiency against radiation in the high energy region. The radiation shielding material comprises a complex containing a fibrous nanocarbon material, a primary radiation shielding particle, and a binder, wherein the fibrous nanocarbon material and the primary radiation shielding particle are dispersed in the binder.Type: GrantFiled: August 9, 2018Date of Patent: February 21, 2023Assignees: SUN-NANOTECHNOLOGY CO., LTD., JAPAN ATOMIC ENERGY AGENCYInventors: Oji Koizumi, Shogo Nasu, Junichiro Kamiya
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Patent number: 11147196Abstract: An air duct formed from an electromagnetic wave absorber in the form of a sheet is disclosed. The sheet can be bent into a duct or scored, and folded at the score lines to bring the ends of the sheet into proximity. The ends can then be joined by adhesive, welding, or mechanical fasters. The air ducts disclosed herein provide dual functions of providing ventilation for electronic components in an electronic module, while at the same time, reducing electromagnetic interference (EMI). One or more air ducts, of the same or different dimensions, shapes, volumes can be combined with electronic modules, such as a server, to provide both ventilation and EMI suppression to various components within the electronic module.Type: GrantFiled: April 3, 2020Date of Patent: October 12, 2021Assignee: QUANTA COMPUTER INC.Inventors: Ching-Jen Chen, Cheng-Hsien Lee
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Patent number: 11026358Abstract: An electromagnetic interference (EMI) shielded device which includes an object to be shielded and an EMI shielding material encompassing the object. The EMI shielding material is made up of, but not limited to a broadband biopolymer or polymer dissolved in organic solvents, and metal and carbon-based nano-powders or nanoparticles. The specific makeup of the shielding material and fabrication procedure of the shielding material is also included herein.Type: GrantFiled: February 25, 2019Date of Patent: June 1, 2021Assignee: SOFTWARE DEFINED TECHNOLOGIES, INCInventors: De Yu Zang, Michael M. Salour, James G. Grote
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Patent number: 10741470Abstract: Disclosed are a heat conductive sheet including a resin and a particulate carbon material, and having a thermal resistance value under a pressure of 0.05 MPa of 0.20° C./W or less, a heat dissipation device including the heat conductive sheet interposed between a heat source and a heat radiator, and a method of producing a heat conductive sheet.Type: GrantFiled: February 17, 2017Date of Patent: August 11, 2020Assignee: ZEON CORPORATIONInventors: Toyokazu Ito, Hiromi Kitagawa, Gen Kobayashi
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Patent number: 10731067Abstract: Disclosed are a heat conductive sheet including a resin and a particulate carbon material, and having an Asker C hardness at 25° C. of 60 or more and a thermal resistance value under a pressure of 0.5 MPa of 0.20° C./W or less, a method of producing a heat conductive sheet, and a heat dissipation device including the heat conductive sheet interposed between a heat source and a heat radiator.Type: GrantFiled: February 17, 2017Date of Patent: August 4, 2020Assignee: ZEON CORPORATIONInventors: Toyokazu Ito, Hiromi Kitagawa, Gen Kobayashi
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Patent number: 10703952Abstract: A thermally conductive sheet includes a resin that is liquid under normal temperature and pressure, a resin that is solid under normal temperature and pressure, and a particulate carbon material, and the thermal resistance of the thermally conductive sheet under a pressure of 0.05 MPa is at most 0.30° C/W. In the thermally conductive sheet, the resin that is solid under normal temperature and pressure is preferably a thermoplastic fluororesin that is solid under normal temperature and pressure, and the resin that is liquid under normal temperature and pressure is preferably a thermoplastic fluororesin that is liquid under normal temperature and pressure.Type: GrantFiled: February 5, 2018Date of Patent: July 7, 2020Assignee: ZEON CORPORATIONInventors: Toyokazu Ito, Masaya Miyamura, Gen Kobayashi
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Patent number: 10584227Abstract: Disclosed herein are a silicone rubber composition and a power cable. The silicone rubber composition has excellent insulation properties and a high permittivity and which can further become a silicone dielectric material having a low specific gravity and a high strength. The power cable in which a terminal connection part or an intermediate connection part is composed of a cured molded product of the just-mentioned composition. The silicone rubber composition includes (A) 100 parts by weight of an organopolysiloxane containing at least two Si-bonded alkenyl groups in one molecule thereof, (B) 5 to 50 parts by weight of a reinforcing silica having a specific surface area measured by a BET method of 50 m2/g to 400 m2/g, (C) 0.3 to 3 parts by weight of carbon nanotubes having an average diameter of 0.5 nm to 50 nm, and (D) a curing agent in an amount necessary for curing of the composition.Type: GrantFiled: September 2, 2016Date of Patent: March 10, 2020Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Masakatsu Hotta, Kazuhiro Oishi, Yoshiaki Koike
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Patent number: 10478145Abstract: A CT scanner with a device configured to improve the electromagnetic properties and/or the shielding of the rotation transmission devices in the CT scanner. A corresponding method for improving the electromagnetic properties and/or the shielding, of the rotation transmission devices inserted in the CT scanner.Type: GrantFiled: April 5, 2017Date of Patent: November 19, 2019Assignee: SCHLEIFRING GMBHInventor: Nils Krumme
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Patent number: 10391734Abstract: A composite panel is constructed by preparing a panel assembly layup including a first prepreg layer having reinforcement material, a first layer of a resin formulation upon a first outer surface, and a second layer of the resin formulation upon an opposing outer surface, where the first layer is thinner than the second layer, and the first layer is presented toward a mold. The layup includes a core layer directly abutting the second layer. They layup includes a second prepreg layer having a first layer of the resin formulation upon a first outer surface, and a second layer of the resin formulation upon an opposing outer surface, where the first layer is thinner than the second layer, and the second layer directly abuts the core layer. The panel assembly is cured in the mold.Type: GrantFiled: August 27, 2016Date of Patent: August 27, 2019Assignee: B/E Aerospace, Inc.Inventor: Alvin S. Bartolome
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Patent number: 10340054Abstract: Polymer composites that are suitable for use as electromagnetic interference mitigaters include a lossy polymeric matrix, ceramic particles dispersed within the polymeric matrix, and conductive particles dispersed within the polymeric matrix. The lossy polymeric matrix may be a fluorocarbon-based polymer matrix, or an epoxy-based polymer matrix. The ceramic particles may be metal oxide particles, especially copper oxide (CuO) particles. The conductive particles may be carbon black. Other electromagnetic interference mitigating polymer matrices include a lossy polymeric matrix and copper oxide (CuO) particles dispersed within the polymeric matrix.Type: GrantFiled: June 7, 2017Date of Patent: July 2, 2019Assignee: 3M Innovative Properties CompanyInventors: Dipankar Ghosh, Biplab K. Roy, Nitin S. Satarkar
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Patent number: 10266716Abstract: The present invention provides [1] a process for producing a colored fine particle dispersion including the step of subjecting a dispersion including a pigment, a polymerizable monomer, a surfactant, a polymerization initiator and water to emulsion polymerization, the pigment being a pigment having a quinacridone skeleton; the surfactant being an anionic or nonionic surfactant; and the polymerization initiator including an anionic or nonionic azo-based compound, [2] a colored fine particle dispersion including colored fine particles having an average particle size of not less than 10 nm and not more than 300 nm, and [3] a process for producing a water-based ink for ink-jet printing, including the step of mixing the obtained colored fine particle dispersion and an organic solvent B.Type: GrantFiled: July 1, 2015Date of Patent: April 23, 2019Assignee: Kao CorporationInventor: Yuuta Matsumoto
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Patent number: 10219418Abstract: An electromagnetic interference (EMI) shielded device which includes an object to be shielded and an EMI shielding material encompassing the object. The EMI shielding material is made up of, but not limited to a broadband biopolymer or polymer dissolved in organic solvents, and metal and carbon-based nano-powders or nanoparticles. The specific makeup of the shielding material and fabrication procedure of the shielding material is also included herein.Type: GrantFiled: June 29, 2016Date of Patent: February 26, 2019Assignee: SOFTWARE DEFINED TECHNOLOGIES, INC.Inventors: De Yu Zang, Michael M. Salour, James G. Grote
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Patent number: 10144806Abstract: Provided are polyaniline coordinated with a transition metal, a core-shell nanoparticle including the same as a core, and preparation methods thereof. According to the polyaniline coordinated with a transition metal and the nanoparticle of the present application, it is possible to prepare polyaniline coordinated with a transition metal using an oxidizing agent having a core-shell structure and including the transition metal and a nanoparticle including the same as a core. The polyaniline prepared as such is in a doped state, and, thus, a preparation process is simple. Further, dispersibility with respect to a solvent is improved, and a band gap level of the polyaniline can be easily regulated.Type: GrantFiled: March 3, 2015Date of Patent: December 4, 2018Assignee: University-Industry Foundation, Yonsei UniversityInventors: Seungjoo Haam, Yong-min Huh, Jaemoon Yang, Jihye Choi, Eun Bi Choi, Seo Ryung Bae, Byunghoon Kang, Myeong-Hoon Kim, Yoochan Hong, Hyun-Ouk Kim
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Patent number: 9956749Abstract: According to one or more embodiments, a polymeric article includes a first polymeric layer defining a first portion and a second portion, the first portion having a first side and a second side opposing the first side, the first side being exposed to atmospheric air, and an ink layer and a second polymeric layer, the ink layer being positioned between the second polymeric layer and the second portion of the first polymeric layer.Type: GrantFiled: January 13, 2014Date of Patent: May 1, 2018Assignee: Ford Global Technologies, LLCInventors: James Paul Yizze, III, Bernard Gerard Marchetti, Charles Alan Rocco
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Patent number: 9871216Abstract: To provide an organic photoelectric conversion element whereby conversion efficiency is increased by morphology improvement in a power generation layer, and whereby short circuit current (Jsc) attenuation when irradiating light is simultaneously suppressed, and an organic solar cell using the same. An organic photoelectric conversion element having: a transparent first electrode; a power generation layer having a p-type organic semiconductor material and an n-type organic semiconductor material; and a second electrode, on a transparent substrate, in which the power generation layer is a bulk heterojunction power generation layer including the p-type organic semiconductor material and the n-type organic semiconductor material, and additionally includes a compound represented by either the following general formula (I) or general formula (II).Type: GrantFiled: August 6, 2012Date of Patent: January 16, 2018Assignee: KONICA MINOLTA, INC.Inventor: Hiroaki Itoh
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Patent number: 9797839Abstract: An optical system of an optical analysis device is easily evaluated with high accuracy. There is provided a method of evaluating an optical analysis device including an optical system A capable of forming a confocal volume C at a focal position by condensing excitation light B, the method including the steps of: placing, at the focal position of the optical system A, a phantom sample in which two or more types of solid members having different fluorescent substance concentrations are arranged adjacent to each other; irradiating the phantom sample 1 with excitation light through the optical system A while relatively moving the confocal volume C formed by the optical system A and the phantom sample in an arrangement direction of the solid members; detecting fluorescent light generated in the solid members placed in the confocal volume C; and evaluating the optical system A based on the detected fluorescent light.Type: GrantFiled: June 12, 2015Date of Patent: October 24, 2017Assignee: OLYMPUS CORPORATIONInventor: Mitsushiro Yamaguchi
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Patent number: 9556334Abstract: Provided herein is a flame-retardant thermoplastic resin composition and a molded product thereof, the composition including polycarbonate resin, rubber modified aromatic vinyl copolymer, aromatic phosphate ester compound, glass fiber, and carbon fiber, wherein the composition includes a weight ratio of the glass fiber to the carbon fiber of about 1:0.3 to about 1:2.Type: GrantFiled: May 7, 2015Date of Patent: January 31, 2017Assignee: Samsung SDI Co., Ltd.Inventors: Kyoungsik Chin, Suji Kim, Seungshik Shin, Pilho Kim
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Patent number: 9133324Abstract: Compositions comprising a polymer-containing matrix and a filler comprising a cage compound selected from borane cage compounds, carborane cage compounds, metal complexes thereof, residues thereof, mixtures thereof, and/or agglomerations thereof, where the cage compound is not covalently bound to the matrix polymer. Methods of making and applications for using such compositions are also disclosed.Type: GrantFiled: November 7, 2014Date of Patent: September 15, 2015Assignee: Honeywell Federal Manufacturing & Technologies, LLCInventors: Daniel E. Bowen, III, Eric A. Eastwood
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Patent number: 9105382Abstract: The invention relates to a polymer composite having magnetic properties that are enhanced or increased in the composite. Such properties include color, thermal conductivity, electrical conductivity, density, improved malleability and ductility viscoelastic and thermoplastic or injection molding properties.Type: GrantFiled: January 21, 2013Date of Patent: August 11, 2015Assignee: TUNDRA COMPOSITES, LLCInventors: Kurt E. Heikkila, Rodney K. Williams, John S. Kroll
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Patent number: 9079024Abstract: A protective body for insertion into a body cavity of a human or animal body for the protection of tissue and/or organs that are not to be irradiated when carrying out radiation therapy, wherein the protective body (1) includes at least one absorber body (2) designed to absorb radiation and having at least one curved surface (3) that delimits the absorber body, and the absorber body (2) has a density at 20° C. of at least 5 gram per cubic centimeter, preferably of at least 10 gram per cubic centimeter.Type: GrantFiled: December 21, 2012Date of Patent: July 14, 2015Inventors: Christian Lechner, Franz Karl Bohler, Gunar Koller
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Patent number: 9004131Abstract: A method and a system for producing a change in a medium disposed in an artificial container. The method places in a vicinity of the medium at least one of a plasmonics agent and an energy modulation agent. The method applies an initiation energy through the artificial container to the medium. The initiation energy interacts with the plasmonics agent or the energy modulation agent to directly or indirectly produce the change in the medium. The system includes an initiation energy source configured to apply an initiation energy to the medium to activate the plasmonics agent or the energy modulation agent.Type: GrantFiled: December 13, 2012Date of Patent: April 14, 2015Assignees: Duke University, Immunolight, LLCInventors: Frederic Avery Bourke, Jr., Tuan Vo-Dinh
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Publication number: 20150005411Abstract: Provided is a resin composition for electromagnetic interference shielding. More particularly, provided is a resin composition having superior dispersibility and impact relaxation and high conductivity, the resin comprising: (a) 100 parts by weight of a resin; based on 100 parts by weight of the resin, (b) 0.1 to 15 parts by weight of a carbon nanotube surface-modified in a condition of the absence of oxidant; and (c) 1 to 40 parts by weight of a carbon compound, a metal, a metal compound, or a mixture thereof. The resin composition for electromagnetic interference shielding, comprising a carbon hydride composite, is specifically useful in an electronic control unit material for weight reduction of car, and thus can be replaced with a high-priced heavy metal material.Type: ApplicationFiled: January 4, 2013Publication date: January 1, 2015Inventors: Jin Seo Lee, Man Woo Jung, Seung hoe Do, Seong Yun Jeon, Jae Yun Lim
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Patent number: 8901205Abstract: Disclosed is an electromagnetic wave-absorbing composite. To make the electromagnetic wave-absorbing composite, barium ferrite (BaFe12O19) and barium titanate (BaTiO3) are added into aniline during polymerization of the aniline. Thus, a core-shell structure is formed. The core-shell structure includes a magnetic/dielectric core and a conductive shell for covering the magnetic/dielectric core.Type: GrantFiled: September 6, 2011Date of Patent: December 2, 2014Assignee: Chung-Shan Institute of Science and Technology, Armaments, Bureau, Ministry of National DefenseInventors: Cheng-Chien Yang, Kuo-Hui Wu
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Publication number: 20140066541Abstract: A method for customizing a golf ball, and associated kits, are provided. The method includes steps of heating a golf ball that has a semi-crystalline thermoplastic polymer material making up the cover layer, and then cooling the golf ball at a preselected rate so as to change the degree of crystallinity. The change in degree of crystallinity allows the golf ball to achieve different play characteristics. The change is reversible by repeating the method, and the method may be repeated many times using the same golf ball. Kits used to carry out the method may include a golf ball having a semi-crystalline thermoplastic polymer material for the cover layer, a graphical representation of how the cooling relates to the desired play characteristics, a stand for holding the golf ball, a heater, and an additive that aids in heating or cooling the golf ball.Type: ApplicationFiled: November 5, 2013Publication date: March 6, 2014Applicant: NIKE, Inc.Inventor: Bradley C. Tutmark
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Patent number: 8658086Abstract: A method and a system for producing a change in a medium. The method places in a vicinity of the medium at least one energy modulation agent. The method applies an initiation energy to the medium. The initiation energy interacts with the energy modulation agent to directly or indirectly produce the change in the medium. The system includes an initiation energy source configured to apply an initiation energy to the medium to activate the energy modulation agent.Type: GrantFiled: December 13, 2012Date of Patent: February 25, 2014Assignee: Immunolight, LLC.Inventor: Frederic A. Bourke, Jr.
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Publication number: 20130165546Abstract: The disclosure relates to an X-ray opaque coating containing an epoxy resin including an iodinated phenol covalently bonded to a glycidyl ether. Iodinated phenol covalently bonded to a glycidyl ether may include iodinated bisphenol A, such as tetraiodobisphenol A, a glycidyl ether of mono-iodophenol, bis-iodephenol, tri-iodophenol, or combinations thereof. The coating may include an X-ray opaque inorganic filler. The disclosure also relates to an electronic component including a substrate and at last one device coupled to the substrate with an obfuscation layer disposed over the substrate for obscuring the device from an X-ray source. The obfuscation layer may include an X-ray opaque coating. The disclosure additionally relates to- a method of obscuring at least a portion of an electronic component by depositing an obfuscation layer that may includes m X-ray opaque coating and a method of forming an X-ray opaque coating.Type: ApplicationFiled: November 30, 2012Publication date: June 27, 2013Applicant: RAYTHEON COMPANYInventor: RAYTHEON COMPANY
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Patent number: 8465663Abstract: A composition for electromagnetic wave suppression and heat radiation includes: a matrix composed of a high molecular material or a low molecular material; and a magnetic particle filled in the matrix upon mixing a magnetic powder having a relation of {(tap density)/density}?0.58 with the matrix.Type: GrantFiled: January 29, 2010Date of Patent: June 18, 2013Assignee: Sony CorporationInventors: Yoshihiro Kato, Kazuhiko Suzuki, Tatsuo Kumura, Yusuke Kubo
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Patent number: 8450392Abstract: This invention relates to the field of an electromagnetic (EM) field shielding paint compositions, in particular, those capable of providing substantially non metallic finish. The paint composition finds particular use in attenuating EM signals that may be used to carry data between communication devices, especially mobile phone and wi-fi devices. EM field shielding paints are typically available in jet-black or bright metallic finishes and usually possess limited scratch & abrasion resistance. The paint composition provides a one-pot solution to furnish a composition which has the visual appearance of a domestic type paint i.e. one with a non-metallic finish, with the ability to shield electromagnetic radiation. The composition comprises a supported metallic flake and a pigment, which have been provided in a narrowly defined range to furnish a desirable non-metallic appearance and possess electromagnetic shielding properties.Type: GrantFiled: January 28, 2009Date of Patent: May 28, 2013Assignee: Qinetiq LimitedInventors: Shahid Hussain, Christopher Robert Lawrence, Philip Mark Shryane Roberts
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Patent number: 8376013Abstract: A method and a system for producing a change in a medium disposed in an artificial container. The method places in a vicinity of the medium at least one of a plasmonics agent and an energy modulation agent. The method applies an initiation energy through the artificial container to the medium. The initiation energy interacts with the plasmonics agent or the energy modulation agent to directly or indirectly produce the change in the medium. The system includes an initiation energy source configured to apply an initiation energy to the medium to activate the plasmonics agent or the energy modulation agent.Type: GrantFiled: March 10, 2009Date of Patent: February 19, 2013Assignees: Duke University, Immunolight, LLCInventors: Frederic Avery Bourke, Jr., Tuan Vo-Dinh
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Patent number: 8343392Abstract: A composite material is constituted by fine nano-oxide particles, a dispersant, and a transparent resin material. The dispersant includes a polymer of vinyl monomer having a binding acidic group. When ? is a dimensionless number defined by an average particle size (nm) of the fine nano-oxide particles divided by nm, the polymer has a degree of polymerization of an integer of 3 or more and 8×? or less with the proviso that the integer is a numerical value obtained by dropping a decimal fraction. The composite material is produced through a step of obtaining a dispersant comprising a polymer by polymerizing a vinyl monomer having a binding acidic group in the presence of polyamine or in an aqueous dilute dispersion, and a step of mixing the dispersant, fine nano-oxide particles, and a transparent resin material.Type: GrantFiled: August 30, 2007Date of Patent: January 1, 2013Assignee: Canon Kabushiki KaishaInventor: Zuyi Zhang
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Publication number: 20120295088Abstract: An electromagnetically absorbing composition and a manufacturing method thereof are provided. The manufacturing method includes steps of: a) 40 wt %-80 wt % of a fluid resin and 20 wt %-60 wt % of coffee grounds; b) mixing the fluid resin and the coffee grounds into homogeneous slurry through a mixing process; c) placing the slurry into a mold assembly; d) after curing and cooling, removing from the mold assembly the composition of a thickness of 0.5 mm-5.0 mm, with a reflection loss above 10 dB from 2 to 18 GHz.Type: ApplicationFiled: May 18, 2011Publication date: November 22, 2012Applicant: R.O.C. MILITARY ACADEMYInventor: Tzu-Hao Ting
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Patent number: 8293147Abstract: A laser-writable molding material containing A) at least one polymer material or at least one precursor compound which can be polymerised to give a polymer material, and B) a particulate salt-like compound or a mixture of particulate salt-like compounds, which under the influence of laser light changes its color or leads to a color change in the component A). In order to enlarge the range of matrix materials hitherto available for laser writing and to overcome the disadvantages of the previously used writing procedures for such matrix materials, the laser-writable molding material according to the invention is characterised in that the at least one polymer material of the component A) is selected from polymer compounds having siloxane crosslinking units.Type: GrantFiled: July 23, 2007Date of Patent: October 23, 2012Assignee: Chemische Fabrik Budenheim KGInventors: Gerhard Scheuer, Joachim Markmann, Gunnar Buehler, Hans-Dieter Naegerl, Thomas Futterer, Ruediger Wissemborski
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Patent number: 8173723Abstract: Disclosed is an electromagnetic wave EMI/RFI shielding resin composite material that includes a thermoplastic polymer resin, an electrically conductive filler having a polyhedral shape or being capable of forming a polyhedral shape, and a low-melting point metal, and a molded product made using the EMI/RFI shielding resin composite material.Type: GrantFiled: November 19, 2009Date of Patent: May 8, 2012Assignee: Cheil Industries Inc.Inventors: Sung-Jun Kim, Chang-Min Hong
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Patent number: 8133940Abstract: Methods for generating metallic particles in situ in a polymer are disclosed. A method includes (a) contacting the polymer with a solution comprising (i) a solvent, (ii) a metal salt, and (iii) a free radical generator; (b) removing the polymer from the solution; and (c) exposing the polymer to actinic radiation. Polymer composites and polymer nanocomposites comprising inorganic particulates comprising metallic particles generated in the polymer are also disclosed.Type: GrantFiled: July 31, 2009Date of Patent: March 13, 2012Assignee: PPG Industries Ohio, Inc.Inventors: Michael A. Zalich, Simion Coca, Gregory J. McCollum
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Publication number: 20120025111Abstract: This invention relates to the field of an electromagnetic (EM) field absorbing composition, in particular, those capable of providing absorbance in the frequency of commercial radar. The composition finds particular use as a radar absorbing coating for wind turbines, in particular for use in onshore and offshore environments. There are further provided coated surfaces comprising the composition, methods of absorbing EM radiation, and methods of use of such a composition, such that a surface coated in the composition is capable of absorbing EM radiation. There is provided an electromagnetic radiation absorbing composition comprising elongate carbon elements with an average longest dimension in the range of 50 to 1 000 microns, with a thickness in the range of 1 to 15 microns and present in the range of from 0.5 to 20 volume % dried, in a non conductive binder.Type: ApplicationFiled: March 24, 2010Publication date: February 2, 2012Inventors: Richard Bryant, Shahid Hussain, Adrian ST Vaughan, Greg PW Fixter
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Electromagnetism suppressing material, electromagnetism suppressing device, and electronic appliance
Patent number: 7959821Abstract: An electromagnetism suppressing material has an increased electromagnetism suppressing effect, can be flexibly formed in various shapes, and is inexpensive. An electromagnetism suppressing device uses the electromagnetism suppressing material, and an electronic appliance uses the electromagnetism suppressing material or the electromagnetism suppressing device. The electromagnetism suppressing material is a liquid material and/or gel material with electrical polarity.Type: GrantFiled: October 31, 2007Date of Patent: June 14, 2011Assignee: Sony CorporationInventors: Yoshihiro Kato, Yoshinori Ito, Katsumi Okayama, Kaoru Kobayashi, Masaki Orihashi, Makoto Suzuki, Takashi Miyazaki -
Publication number: 20110104496Abstract: A microwave-sensitive thermoplastic composition that includes a microwave-receptive additive; and a thermoplastic polymer; wherein the microwave-receptive additive is selected from the group consisting of sepiolite clay, molecular sieves formed from ammonium ion salts or hydrogen ion salts, aluminophosphates, silicoaluminophasphates, silicotitanates, organo-modified clays, molecular sieves or zeolites having a caged organic microwave receptive material, and combinations thereof.Type: ApplicationFiled: May 31, 2007Publication date: May 5, 2011Applicant: DOW GLOBAL TECHNOLOGIES INC.Inventors: Michael Cook, Michael S. Paquette, Robert P. Haley, JR., Sam Crabtree, Jose Longoria, Saeed Siavoshani, Peter K. Mercure, Shih-Yaw Lai, Ronald G. Van Daele
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Patent number: 7902292Abstract: The present invention relates to two-component paint, which comprises: a first liquid comprising at least one colloidal metal solution which includes at least colloidal metal particles with a sulfur compound of low molecular weight on the particle surfaces and a dispersion medium, the solution containing not less than 1 wt. % of the colloidal metal particles and has a pH of 8-14, and a second liquid comprising at least a curable resin component.Type: GrantFiled: December 20, 2006Date of Patent: March 8, 2011Assignee: Ishihara Sangyo Kaisha, Ltd.Inventor: Masanori Tomonari
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Publication number: 20110039059Abstract: A molding article includes a base and an EMI shielding film adhered to the base. The base includes a thermoplastic material and is made by injection molding. The EMI shielding film includes carbon nanotubes.Type: ApplicationFiled: April 7, 2010Publication date: February 17, 2011Applicant: HON HAI PRECISION INDUSTRY CO., LTD.Inventor: HSIN-CHIN HUNG
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Publication number: 20100311866Abstract: Polymer-based nanocomposites and a method for forming polymer-based nanocomposites for EMI shielding includes three nanofillers used in a formation of a hierarchy in structure, length, size, and dimension. The nanofillers formulation comprises 18 wt % of nickel-coated carbon fibers (NCCB), 7 wt % of carbon nanofibers, and 2 wt % of multi-walled carbon nanotubes mixed within an ABS copolymer matrix of 72 wt % for effective EMI shielding.Type: ApplicationFiled: June 5, 2009Publication date: December 9, 2010Applicant: UNIVERSITY OF MASSACHUSETTSInventors: Jijun Huang, Joey L. Mead
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Publication number: 20100291291Abstract: This invention relates to the field of an electromagnetic (EM) field shielding paint compositions, in particular, those capable of providing substantially non metallic finish. The paint composition finds particular use in attenuating EM signals that may be used to carry data between communication devices, especially mobile phone and wi-fi devices. EM field shielding paints are typically available in jet-black or bright metallic finishes and usually possess limited scratch & abrasion resistance. The paint composition provides a one-pot solution to furnish a composition which has the visual appearance of a domestic type paint i.e. one with a non-metallic finish, with the ability to shield electromagnetic radiation. The composition comprises a supported metallic flake and a pigment, which have been provided in a narrowly defined range to furnish a desirable non-metallic appearance and possess electromagnetic shielding properties.Type: ApplicationFiled: January 28, 2009Publication date: November 18, 2010Inventors: Shahid Hussain, Christopher Robert Lawrence
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Publication number: 20100163795Abstract: The present invention provides a resin composition comprising a thermoplastic resin (A), an inorganic compound having a volume resistance of less than about 10?3 ?·m and relative permeability of more than about 5,000 (B) and fiber filler (C). The resin composition of the present invention can have high impact strength and high electrical conductivity, and high electromagnetic interference (EMI) and radio frequency interference (RFI) shielding properties. The resin composition of the present invention can accordingly have multiple functions and can be used for electrical/electronic devices.Type: ApplicationFiled: December 29, 2009Publication date: July 1, 2010Applicant: CHEIL INDUSTRIES INC.Inventors: Sung Jun Kim, Young Sik Ryu
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Publication number: 20100140565Abstract: Disclosed is an electromagnetic wave interference (EMI)/radio frequency interference (RFI) shielding resin composite material including (A) a thermoplastic polymer resin, (B) a tetrapod whisker, and (C) a low melting point metal.Type: ApplicationFiled: December 10, 2009Publication date: June 10, 2010Applicant: CHEIL INDUSTRIES INC.Inventors: Sung-Jun KIM, Chang-Min HONG
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Publication number: 20100136327Abstract: The present invention provides a modified carbon nanotube having —C(O)—R? or —C(O)—R—COOH covalently bounded to a surface of carbon nanotube, wherein R? is C1-C26 alkyl or C2-C26 alkenyl, and R is C1-C26 alkylene or C2-C26 alkenylene. The present invention also discloses a carbon nanotubes/polymer composite having electromagnetic interference shielding effectiveness, which contains 0.1-10% of modified carbon nanotubes, based on the weight of the polymer. The present invention further provides methods for preparing the modified carbon nanotubes and the composite.Type: ApplicationFiled: December 17, 2009Publication date: June 3, 2010Applicant: National Tsing Hua UniversityInventors: Chen-Chi Martin Ma, Siu-Ming Yuen, Chia-Yi Chuang, Kuo-Chi Yu, Sheng Yen Wu
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Publication number: 20100130638Abstract: An ultraviolet absorbent composition, containing an ultraviolet absorbent represented by formula (2) or (B-I), and a compound represented by formula (TS-I) or (TS-II): wherein A21, A22 and XB1 to XB4 represent a hetero atom; Y21, Y22, RB1 to RB6, R91 to R96, R101 to R104 and X101 represent a hydrogen atom or a substituent; at least one of Y21 and Y22 represents a substituent having a Hammett substituent constant of 0.2 or more; and (B) represents a group of atoms necessary for forming a five- or six-membered ring; —X91- represents —O—, —S—, or —N(—R100)-, in which R100 has the same meaning as R91; all of R91 to R96 and R100 cannot simultaneously represent a hydrogen atom, respectively, and the total number of carbon atoms is 10 or more; and X102 represents a group of hetero atoms necessary for forming a 5- to 7-membered ring.Type: ApplicationFiled: March 31, 2008Publication date: May 27, 2010Applicant: FUJIFILM CorporationInventors: Naoyuki Hanaki, Toshihiko Yawata
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Publication number: 20100119814Abstract: An electromagnetic wave suppression material that has a high light transmission performance even under a low temperature environment to display a sufficient electromagnetic wave suppression effect, and an electromagnetic wave suppression sheet that has the electromagnetic wave suppression material sealed in it, are disclosed. An electromagnetic wave suppression sheet (3) is composed of an electromagnetic wave suppression material (1) charged into a moisture-resistant film (2) whose peripheral part is laminated by a predetermined adhesive by way of sealing.Type: ApplicationFiled: December 2, 2008Publication date: May 13, 2010Applicant: SONY CHEMICAL & INFORMATION DEVICE CORPORATIONInventors: Yoshito Ikeda, Norikazu Yamamoto
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Publication number: 20100117037Abstract: The present invention relates to an adhesive composition for an electro-magnetic shielding film and an electro-magnetic shielding filter using the same, and more particularly to an adhesive composition for an electromagnetic shielding film comprising: a) an acrylic copolymer of i) (meth)acrylate ester monomers having C1, to C12 alkyl groups and ii) vinylic monomers having hydroxyl groups; and b) a multifunctional isocyanate crosslinking agent. The electro-magnetic shielding filter of the present invention offers good durability because transparentization is performed with an acrylic adhesive composition having no acidic groups, and thus oxidation of copper is prevented.Type: ApplicationFiled: November 2, 2009Publication date: May 13, 2010Inventors: Dong-Wook Lee, In-Cheon Han, Jong-Cheol Park
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Patent number: 7622511Abstract: A method and kit for providing a tack-free artificial nail surface. The tack-free artificial nail surface may include an acrylic layer and a barrier layer. The acrylic layer may comprise an odorless monomer. The barrier layer may be of any material impervious to oxygen. The tack-free nail surface may be formed by application of the acrylic layer to a fingernail nail bed. The barrier layer may then be applied over the acrylic layer. The barrier layer blocks oxygen from the acrylic layer so that the acrylic layer may polymerize in the absence of oxygen.Type: GrantFiled: August 30, 2005Date of Patent: November 24, 2009Assignee: OPI Products, Inc.Inventors: Sunil J. Sirdesai, Lauren M. Breese, George W. Schaeffer