Patents Assigned to Japan Fine Ceramics Center
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Patent number: 10302334Abstract: This invention is a sunlight-to-heat converting member containing chromium silicide having an element ratio of Cr to Si from 1:1.6 to 1:4.7. This invention is also a sunlight-to-heat converting stack including a layer of the sunlight-to-heat converting member and a metal layer. This invention is also a sunlight-to-heat converting device including a light collecting part, either or both of a container and a flow path where sunlight is collected by the light collecting part, and a heating medium housed in either or both of the container and the flow path. The sunlight-to-heat converting member or the sunlight-to-heat converting stack is formed on a surface of either or both of the container and the flow path. The sunlight-to-heat converting member, the sunlight-to-heat converting stack, and the sunlight-to-heat converting device of this invention can convert light to heat efficiently.Type: GrantFiled: March 19, 2014Date of Patent: May 28, 2019Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN FINE CERAMICS CENTERInventors: Takuhito Tsutsui, Kazuto Noritake, Toru Sasatani, Norihito Takeuchi, Takayuki Homma, Yoshiki Okuhara
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Publication number: 20190092702Abstract: An environmental resistant coating member includes a SiC long fiber-reinforced ceramics substrate and an environmental barrier coating layer provided on the whole surface of the SiC long fiber-reinforced ceramics substrate. The environmental barrier coating layer includes a SiAlON bonding layer laminated on the SiC long fiber-reinforced ceramics substrate, a mullite layer laminated on the SiAlON bonding layer, a reaction inhibition layer laminated on the mullite layer, and a gradient layer formed on the reaction inhibition layer that gradually changes from a rare-earth disilicate to a rare-earth monosilicate. The reaction inhibition layer includes at least one of an alumina layer, a garnet layer, and a rare-earth (mono)silicate layer. When the reaction inhibition layer includes two or more of these layers, the layers are formed in the order of the alumina layer, the garnet layer, and the rare-earth (mono)silicate layer from a mullite layer side toward a gradient layer side.Type: ApplicationFiled: February 21, 2017Publication date: March 28, 2019Applicants: Japan Fine Ceramics Center, IHI CorporationInventors: Norio YAMAGUCHI, Taishi YOKOI, Kenji NAKAHIRA, Hiroshi NOMURA, Satoshi KITAOKA, Takeshi NAKAMURA, Tsuyoshi TAKEMOTO
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Publication number: 20190054653Abstract: The present invention is a sintering method of a ceramic for sintering characterized by forming a layer containing a carbon powder on a surface of an article consisting of a ceramic for sintering, and then irradiating with laser a surface of the carbon powder-containing layer of a lamination obtained.Type: ApplicationFiled: February 2, 2017Publication date: February 21, 2019Applicants: Japan Fine Ceramics Center, NORITAKE CO., LIMITED, TOTO LTD., NGK INSULATORS, LTD., NGK SPARK PLUG CO., LTD.Inventors: Teiichi KIMURA, Satoshi SUEHIRO
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Publication number: 20190041098Abstract: A solar heat collector tube in which at least an infrared reflective layer, a sunlight-heat conversion layer and an anti-reflection layer are provided on the outer surface of a tube through the interior of which a heat medium can flow, wherein the infrared reflective layer in the solar heat collector tube is an Ag layer having Nb dispersed therein, the content of Nb being 0.1 at % to 31.8 at %.Type: ApplicationFiled: November 18, 2016Publication date: February 7, 2019Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN FINE CERAMICS CENTERInventors: Takuhito TSUTSUI, Toru SASATANI, Kazuto NORITAKE, Yoshiki OKUHARA, Tomohiro KUROYAMA, Daisuke IGIMI
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Publication number: 20190041097Abstract: A solar heat collector tube in which at least an infrared reflective layer, a sunlight-heat conversion layer and an anti-reflection layer are provided on the outer surface of a tube, through the interior of which a heat medium can flow, wherein the infrared reflective layer in the solar heat collector tube has a multilayer structure in which an Ag layer, having dispersed therein at least one metal selected from the group consisting of Mo, W, Ta, Nb and Al, is sandwiched between two metal protective layers.Type: ApplicationFiled: November 18, 2016Publication date: February 7, 2019Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN FINE CERAMICS CENTERInventors: Takuhito TSUTSUI, Toru SASATANI, Kazuto NORITAKE, Yoshiki OKUHARA, Tomohiro KUROYAMA, Daisuke IGIMI
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Publication number: 20190032966Abstract: A solar heat collector tube in which at least an infrared reflective layer, a sunlight-heat conversion layer and an anti-reflection layer are provided on the outer surface of a tube, through the interior of which a heat medium can flow, wherein the infrared reflective layer is an Ag layer in which silicon, silicon nitride or a mixture thereof is dispersed, and a method for producing the solar heat collector tube wherein the infrared reflective layer that is an Ag layer, in which silicon, silicon nitride or a mixture thereof is dispersed, is formed by sputtering in the presence of a gas including nitrogen gas, with Ag and silicon being used as targets.Type: ApplicationFiled: November 18, 2016Publication date: January 31, 2019Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN FINE CERAMICS CENTERInventors: Takuhito TSUTSUI, Toru SASATANI, Kazuto NORITAKE, Yoshiki OKUHARA, Tomohiro KUROYAMA, Daisuke IGIMI
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Patent number: 10094559Abstract: Provided is a regeneration rotary kiln capable of reducing the proportion of combustible gas in waste gas and capable of reducing cost for generating superheated steam. A regeneration rotary kiln (1) is characterized by including: a superheated steam generation unit (2) that generates superheated steam; a tube (3) capable of rotating about its axis and having a heating section (A) where, while the superheated steam is being supplied thereto, carbon fiber reinforced plastic (10) containing a matrix resin and carbon fibers is heated to generate combustible gas (10G) from the matrix resin to extract the carbon fibers (10S) from the carbon fiber reinforced plastic (10); a first combustion chamber (43a) that is placed outside the tube (3) and that burns the gas (10G) introduced from the heating section (A) to heat the heating section (A); and a second combustion chamber (43b) that burns the gas (10G) introduced from the first combustion chamber (43a) to supply heat for generating the superheated steam.Type: GrantFiled: October 2, 2014Date of Patent: October 9, 2018Assignees: TAKASAGO INDUSTRY CO., LTD., JAPAN FINE CERAMICS CENTERInventors: Norio Muto, Motoharu Suzuki, Toshiki Nakamura, Satoshi Kitaoka, Masashi Wada, Kazuhiko Kawai, Kazumi Hayashi
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Patent number: 10011724Abstract: A coating used in a vapor-oxidative atmosphere has a first layer including SIALON and a second layer covering the first layer and being exposed to the atmosphere, the second layer including mullite, wherein the first layer and the second layer get in contact with each other.Type: GrantFiled: March 24, 2017Date of Patent: July 3, 2018Assignees: IHI CORPORATION, JAPAN FINE CERAMICS CENTERInventors: Takeshi Nakamura, Takashi Tamura, Satoshi Kitaoka, Naoki Kawashima
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Publication number: 20180166739Abstract: To provide a structural body having a new shape and including a garnet crystal structure. A structural body comprising LiaM1bM2cOd (5?a?8; 2.5?b?3.5; 1.5?c?2.5; 10?d?14; M1 is at least one element selected from Al, Y, La, Pr, Nd, Sm, Lu, Mg, Ca, Sr, or Ba; and M2 is at least one element selected from Zr, Hf, Nb, or Ta) including a garnet crystal structure, wherein in a scanning electron microscopic image obtained through observation of a fracture surface in a depth direction of the structural body, a striped pattern extending along the depth direction is shown, and/or in a scanning electron microscopic image obtained through observation of a cut surface in the depth direction of the structural body, a continuous body extending along the depth direction is shown.Type: ApplicationFiled: April 28, 2016Publication date: June 14, 2018Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN FINE CERAMICS CENTERInventors: Yusuke YAMAMOTO, Junichi NIWA, Teiichi KIMURA
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Patent number: 9983165Abstract: The present teaching rekates to providing a NOx decomposition agent having an excellent NOx decomposition rate. The NOx decomposition agent containing a perovskite oxide represented by ABx-1MxO3, wherein A represents one or more elements selected from the group consisting of La, Sr, Mg, Ca and Ba, B represents Mn, M represents a combination of one or more first metal elements selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Cr, Mo, W and Ce, and one or two second metal elements selected from the group consisting of Ca and Mg, and x represents a number greater than or equal to 0 and less than 1.Type: GrantFiled: March 4, 2014Date of Patent: May 29, 2018Assignees: JAPAN FINE CERAMICS CENTER, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Taro Ueda, Seiji Takahashi, Toyoharu Kaneko, Tatsuhiro Hashida, Keiichiro Aoki
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Patent number: 9983166Abstract: The present specification provides a NOx responsive element suitable for directly sensing NOx. The NOx responsive element an oxygen ion conductive layer has a first electrode layer having a nitrogen oxide decomposition catalyst phase composed of perovskite-type oxide, being in contact with the oxygen ion conductive layer, and being exposed to NOx, and a second electrode layer opposing the first electrode layer across the oxygen ion conductive layer. The nitrogen oxide decomposition catalyst phase has a nitrogen oxide adsorption stabilizing surface on its surface exposed to nitrogen oxide.Type: GrantFiled: November 17, 2015Date of Patent: May 29, 2018Assignees: JAPAN FINE CERAMICS CENTER, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Taro Ueda, Hajime Okawa, Masaya Suzuki, Takafumi Ogawa, Seiji Takahashi, Toyoharu Kaneko, Keiichiro Aoki
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Patent number: 9970684Abstract: The present invention addresses the issue of providing an optical selective film that contributes to efficiently converting light into heat. This optical selective film is characterized in that: the optical selective film includes at least an Ag-containing layer, and an Ag diffusion prevention layer that is disposed adjacent to the Ag-containing layer; and the Ag diffusion prevention layer contains FeSix (X=1 to 2).Type: GrantFiled: October 28, 2013Date of Patent: May 15, 2018Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN FINE CERAMICS CENTERInventors: Takuhito Tsutsui, Kazuto Noritake, Toru Sasatani, Yoshiki Okuhara, Seiichi Suda
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Patent number: 9903047Abstract: A method for producing an SiC crystal, comprising supplying a raw material gas containing Si, C and N to vapor-grow an N-doped SiC crystal on an SiC substrate, wherein the SiC substrate is an SiC substrate on which La, Ce or Ti is deposited in part or whole of the surface or an SiC substrate in which La, Ce or Ti ion is implanted into part or whole of the surface.Type: GrantFiled: June 17, 2016Date of Patent: February 27, 2018Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, JAPAN FINE CERAMICS CENTERInventors: Akinori Seki, Yukari Ishikawa
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Publication number: 20180017289Abstract: A solar heat collection tube 1 of the present invention has: a tube 3 in which a heat medium 2 can flow; an infrared reflective layer 4 formed on an outer surface of the tube 3; a sunlight-to-heat conversion layer 5 formed on the infrared reflective layer 4 and containing manganese silicide; and an anti-reflection layer 6 formed on the sunlight-to-heat conversion layer 5. Preferably, the manganese silicide used in the sunlight-to-heat conversion layer 5 is a semiconductor. The solar heat collection tube 1 of the present invention allows sunlight to be converted into heat efficiently.Type: ApplicationFiled: December 11, 2015Publication date: January 18, 2018Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, JAPAN FINE CERAMICS CENTERInventors: Takuhito TSUTSUI, Toru SASATANI, Kazuto NORITAKE, Yoshiki OKUHARA, Tomohiro KUROYAMA, Daisuke IGIMI
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Publication number: 20170190920Abstract: A coating used in a vapor-oxidative atmosphere has a first layer including SIALON and a second layer covering the first layer and being exposed to the atmosphere, the second layer including mullite, wherein the first layer and the second layer get in contact with each other.Type: ApplicationFiled: March 24, 2017Publication date: July 6, 2017Applicants: IHI Corporation, JAPAN FINE CERAMICS CENTERInventors: Takeshi NAKAMURA, Takashi TAMURA, Satoshi KITAOKA, Naoki KAWASHIMA
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Patent number: 9546801Abstract: A solar-thermal conversion member includes a ?-FeSi2 phase material. The solar-thermal conversion member exhibits a high absorptance for visible light at wavelengths of several hundred nm and a low absorptance for infrared light at wavelengths of several thousand nm and, as a consequence, efficiently absorbs visible light at wavelengths of several hundred nm and converts the same into heat and exhibits little thermal radiation due to thermal emission at temperatures of several hundred ° C. The solar-thermal conversion member may therefore efficiently absorb sunlight, provide heat, and prevent thermal radiation due to thermal emission.Type: GrantFiled: November 9, 2012Date of Patent: January 17, 2017Assignees: Toyota Jidosha Kabushiki Kaisha, Japan Fine Ceramics Center, Kabushiki Kaisha Toyota JidoshokkiInventors: Akinori Sato, Yoshiki Okuhara, Seiichi Suda, Daisaku Yokoe, Takeharu Kato, Toru Sasatani
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Publication number: 20160369424Abstract: A method for producing an SiC crystal, comprising supplying a raw material gas containing Si, C and N to vapor-grow an N-doped SiC crystal on an SiC substrate, wherein the SiC substrate is an SiC substrate on which La, Ce or Ti is deposited in part or whole of the surface or an SiC substrate in which La, Ce or Ti ion is implanted into part or whole of the surface.Type: ApplicationFiled: June 17, 2016Publication date: December 22, 2016Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, JAPAN FINE CERAMICS CENTERInventors: Akinori SEKI, Yukari ISHIKAWA
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Patent number: 9486734Abstract: The helium gas separator material includes a base portion and a gas separation portion joined to the base portion. The base portion is composed of a porous ?-alumina material which has communication holes with an average diameter of 50 nm to 1,000 nm; the gas separation portion has a porous ?-alumina portion containing a Ni element and a silica membrane portion which is disposed on the inner wall of the communication holes in the porous portion; and the average diameter of pores surrounded and formed by the silica membrane portion is 0.27 nm to 0.60 nm.Type: GrantFiled: June 27, 2013Date of Patent: November 8, 2016Assignees: Japan Petroleum Exploration Co., Ltd., Japan Fine Ceramics CenterInventors: Takayuki Nagano, Koji Sato, Kazumoto Chiba, Toshiya Wakatsuki, Yusuke Takeuchi
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Publication number: 20160305649Abstract: Provided is a regeneration rotary kiln capable of reducing the proportion of combustible gas in waste gas and capable of reducing cost for generating superheated steam. A regeneration rotary kiln (1) is characterized by including: a superheated steam generation unit (2) that generates superheated steam; a tube (3) capable of rotating about its axis and having a heating section (A) where, while the superheated steam is being supplied thereto, carbon fiber reinforced plastic (10) containing a matrix resin and carbon fibers is heated to generate combustible gas (10G) from the matrix resin to extract the carbon fibers (10S) from the carbon fiber reinforced plastic (10); a first combustion chamber (43a) that is placed outside the tube (3) and that burns the gas (10G) introduced from the heating section (A) to heat the heating section (A); and a second combustion chamber (43b) that burns the gas (10G) introduced from the first combustion chamber (43a) to supply heat for generating the superheated steam.Type: ApplicationFiled: October 2, 2014Publication date: October 20, 2016Applicants: TAKASAGO INDUSTRY CO., LTD., JAPAN FINE CERAMICS CENTERInventors: Norio MUTO, Motoharu SUZUKI, Toshiki NAKAMURA, Satoshi KITAOKA, Masashi WADA, Kazuhiko KAWAI, Kazumi HAYASHI
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Publication number: 20160084532Abstract: This invention is a sunlight-to-heat converting member containing chromium silicide having an element ratio of Cr to Si from 1:1.6 to 1:4.7. This invention is also a sunlight-to-heat converting stack including a layer of the sunlight-to-heat converting member and a metal layer. This invention is also a sunlight-to-heat converting device including a light collecting part, either or both of a container and a flow path where sunlight is collected by the light collecting part, and a heating medium housed in either or both of the container and the flow path. The sunlight-to-heat converting member or the sunlight-to-heat converting stack is formed on a surface of either or both of the container and the flow path. The sunlight-to-heat converting member, the sunlight-to-heat converting stack, and the sunlight-to-heat converting device of this invention can convert light to heat efficiently.Type: ApplicationFiled: March 19, 2014Publication date: March 24, 2016Applicants: JAPAN FINE CERAMICS CENTER, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Takuhito TSUTSUI, Kazuto NORITAKE, Toru SASATANI, Norihito TAKEUCHI, Takayuki HOMMA, Yoshiki OKUHARA