Patents by Inventor Tetsuji Itou
Tetsuji Itou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10958207Abstract: In an attachment structure for attaching a photovoltaic cell module having flexibility to an installation surface or an attachment member, a back surface of the photovoltaic cell module is attached to the installation surface or the attachment member by being adhered by an adhesive material.Type: GrantFiled: October 17, 2014Date of Patent: March 23, 2021Assignee: Solar Frontier K.K.Inventors: Tatsuji Kanbara, Shinji Kato, Toshiaki Yamaura, Natsuki Hamada, Tetsuji Itou, Bagwadkar Ninad, Tomoyasu Yamada, Mitsuru Arasaki, Hideki Sakai, Mitsuru Onoda, Yuuki Narita
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Publication number: 20160261228Abstract: Provide an attachment structure suitable for attaching a thin-film photovoltaic cell module having flexibility to various installation surfaces and attachment members that are fixed to the installation surfaces that is easily and surely capable of attaching. In an attachment structure for attaching a thin-film photovoltaic cell module 10 having flexibility to an installation surface R1 or an attachment member R1, a back surface of the thin-film photovoltaic cell module 10 is attached to the installation surface R1 or the attachment member by being adhered by an adhesive material 3.Type: ApplicationFiled: October 17, 2014Publication date: September 8, 2016Inventors: Tatsuji KANBARA, Shinji KATO, Toshiaki YAMAURA, Natsuki HAMADA, Tetsuji ITOU, Bagwadkar NINAD, Tomoyasu YAMADA, Mitsuru ARASAKI, Hideki SAKAI, Mitsuru ONODA, Yuuki NARITA
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Patent number: 7594309Abstract: A method of producing a laminate-type piezoelectric element, wherein a ceramic laminated body therein is formed through an intermediate laminated body-forming step of forming an intermediate laminated body 100 by alternately laminating green sheets 110 that serve as the piezoelectric layers and the inner electrode layers 20, and a calcining step of forming the ceramic laminated body by calcining the intermediate laminated body 100. In the intermediate laminated body-forming step, an overlapped portion 108 and a non-overlapped portion 109 are formed in the intermediate laminated body 100, and voids 40 are formed, in advance, in at least part of the portion that becomes the non-overlapped portion 109. In the calcining step, relaxing layers including the voids 40 are formed.Type: GrantFiled: November 30, 2006Date of Patent: September 29, 2009Assignee: Denso CorporationInventors: Akio Iwase, Shige Kadotani, Tetsuji Itou
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Patent number: 7411336Abstract: A hollow laminated piezoelectric element having excellent durability and reliability and capable of obtaining a high output, and a method of manufacturing the hollow laminated piezoelectric element are provided. A hollow laminated piezoelectric element 1 comprises a ceramic laminate 10 that is formed by having alternately laminated piezoelectric layers 11 made of a piezoelectric material and internal electrode layers 21 and 22 having conductivity and by having a center through hole 14 formed to pass through the ceramic laminate 10 along a lamination direction. The ceramic laminate 10 has an internally terminated structure in the inside periphery having at least a portion of inside peripheral ends of the internal electrode layers 21 and 22 terminated within the ceramic laminate 10 so that at least a portion of the inside peripheral ends of the internal electrode layers 21 and 22 is not exposed to the inside peripheral surface 104 of the ceramic laminate 10.Type: GrantFiled: December 5, 2005Date of Patent: August 12, 2008Assignee: Denso CorporationInventors: Akio Iwase, Shige Kadotani, Tetsuji Itou
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Patent number: 7294953Abstract: This invention provides a stacked piezoelectric element that has excellent durability and reliability by ensuring reliable electrical conduction between internal electrode layer and conductive adhesive, and a method of fabricating such a stacked piezoelectric element, wherein the stacked piezoelectric element 1 comprises: a ceramic stack 10 constructed by alternately stacking piezoelectric layers 11 made of a piezoelectric material and internal electrode layers 21, 22 having electrical conductivity; and external electrodes 32 bonded to the side faces 101 and 102 of the ceramic stack 10 via an electrically conductive adhesive 31.Type: GrantFiled: December 21, 2005Date of Patent: November 13, 2007Assignee: Denso CorporationInventors: Akio Iwase, Shige Kadotani, Tetsuji Itou
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Publication number: 20070124903Abstract: A method of producing a laminate-type piezoelectric element, wherein a ceramic laminated body therein is formed through an intermediate laminated body-forming step of forming an intermediate laminated body 100 by alternately laminating green sheets 110 that serve as the piezoelectric layers and the inner electrode layers 20, and a calcining step of forming the ceramic laminated body by calcining the intermediate laminated body 100. In the intermediate laminated body-forming step, an overlapped portion 108 and a non-overlapped portion 109 are formed in the intermediate laminated body 100, and voids 40 are formed, in advance, in at least part of the portion that becomes the non-overlapped portion 109. In the calcining step, relaxing layers including the voids 40 are formed.Type: ApplicationFiled: November 30, 2006Publication date: June 7, 2007Applicant: DENSO CORPORATIONInventors: Akio Iwase, Shige Kadotani, Tetsuji Itou
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Patent number: 7225514Abstract: A stacked piezoelectric element is produced by alternately stacking a piezoelectric layer and an inner electrode layer. The method includes producing a green sheet 110 for a base, forming a unit body 3 having a narrow stacked part 30 where a narrow piezoelectric material layer 115 having an area smaller than the green sheet 110 for base and an electrode material layer 20 having an area smaller than the green sheet 110 for base are stacked, the unit body being formed by disposing the narrow stacked part 30 on the green sheet 110 for base; forming a stacked body having groove parts by stacking a plurality of the unit bodies 3, the groove part having the bottom being defined by the side face of the narrow stacked part 30; and firing the stacked body.Type: GrantFiled: June 2, 2004Date of Patent: June 5, 2007Assignee: Denso CorporationInventors: Akio Iwase, Tetsuji Itou, Toshio Ooshima, Shige Kadotani
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Publication number: 20060138908Abstract: This invention provides a stacked piezoelectric element that has excellent durability and reliability by ensuring reliable electrical conduction between internal electrode layer and conductive adhesive, and a method of fabricating such a stacked piezoelectric element. The stacked piezoelectric element 1 comprises: a ceramic stack 10 constructed by alternately stacking piezoelectric layers 11 made of a piezoelectric material and internal electrode layers 21, 22 having electrical conductivity; and external electrodes 32 bonded to the side faces 101 and 102 of the ceramic stack 10 via an electrically conductive adhesive 31.Type: ApplicationFiled: December 21, 2005Publication date: June 29, 2006Applicant: DENSO CORPORATIONInventors: Akio Iwase, Shige Kadotani, Tetsuji Itou
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Publication number: 20060119220Abstract: A hollow laminated piezoelectric element having excellent durability and reliability and capable of obtaining a high output, and a method of manufacturing the hollow laminated piezoelectric element are provided. A hollow laminated piezoelectric element 1 comprises a ceramic laminate 10 that is formed by having alternately laminated piezoelectric layers 11 made of a piezoelectric material and internal electrode layers 21 and 22 having conductivity and by having a center through hole 14 formed to pass through the ceramic laminate 10 along a lamination direction. The ceramic laminate 10 has an internally terminated structure in the inside periphery having at least a portion of inside peripheral ends of the internal electrode layers 21 and 22 terminated within the ceramic laminate 10 so that at least a portion of the inside peripheral ends of the internal electrode layers 21 and 22 is not exposed to the inside peripheral surface 104 of the ceramic laminate 10.Type: ApplicationFiled: December 5, 2005Publication date: June 8, 2006Applicant: DENSO CorporationInventors: Akio Iwase, Shige Kadotani, Tetsuji Itou
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Publication number: 20050230028Abstract: A method for producing thin sheet-like ceramic plates comprising the steps of: forming a green sheet from a ceramic raw material; arranging a separation material comprising a burning loss material capable of being burnt and lost by baking, in a punch-out area for punching out sheet pieces on a surface of the green sheet; punching out the punch-out area from the green sheet to obtain the sheet pieces; stacking the punched out sheet pieces to form an intermediate stacked body; baking the intermediate stacked body to obtain a baked stacked body comprising ceramic layers stacked one upon another; and separating the ceramic layers from the baked stacked body to obtain discrete ceramic sheets, and thin sheet-like ceramic plates produced using this production method.Type: ApplicationFiled: April 5, 2005Publication date: October 20, 2005Applicant: DENSO CORPORATIONInventors: Akio Iwase, Toshio Ooshima, Tetsuji Itou, Shige Kadotani
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Publication number: 20040255443Abstract: This invention is directed to providing a method for producing a stacked piezoelectric element, where grooves can be easily formed on the side face of a stacked body without causing damage.Type: ApplicationFiled: June 2, 2004Publication date: December 23, 2004Applicant: DENSO CORPORATIONInventors: Akio Iwase, Tetsuji Itou, Toshio Ooshima, Shige Kadotani