Patents by Inventor Yuko Saya
Yuko Saya 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: 9620300Abstract: An electrochemical device comprises an element body 10 in which a pair of a first inner electrode and a second inner electrode are laminated to sandwich a separator layer; an exterior sheet 4 covering the element body; a first lead terminal 18 drawn to an outside of the exterior sheet 4; and a second lead terminal 28 drawn to the outside of the exterior sheet 4. A proof stress of the exterior sheet is 390 to 980 N/mm2 in JIS Z2241, and a hardness of the exterior sheet is 230 to 380 Hv in Vickers hardness (JIS Z2244).Type: GrantFiled: October 15, 2014Date of Patent: April 11, 2017Assignee: TDK CorporationInventor: Yuko Saya
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Patent number: 9437807Abstract: The present invention aims to provide a piezoelectric composition and a piezoelectric element containing the piezoelectric composition. In the piezoelectric composition, the main component contains a substance represented by the following formula with a perovskite structure, (Bi(0.5x+y+z)Na0.5x)m(Ti(x+0.5y)Mg0.5yAlkzCo(1?k)z)O3 0.15?x?0.7, 0.28?y?0.75, 0.02?z?0.30, 0.17?k?0.83, 0.75?m?1.0, and x+y+z=1.Type: GrantFiled: March 31, 2015Date of Patent: September 6, 2016Assignee: TDK CORPORATIONInventors: Yuko Saya, Taku Masai, Masahito Furukawa, Masamitsu Haemori
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Publication number: 20150280105Abstract: The present invention aims to provide a piezoelectric composition and a piezoelectric element containing the piezoelectric composition. In the piezoelectric composition, the main component contains a substance represented by the following formula with a perovskite structure, (Bi(0.5x+y+z)Na0.5x)m(Ti(x+0.5y)Mg0.5yAlkzCo(1?k)z)O3 0.15?x?0.7, 0.28?y?0.75, 0.02?z?0.30, 0.17?k?0.83, 0.75?m?1.0, and x+y+z=1.Type: ApplicationFiled: March 31, 2015Publication date: October 1, 2015Inventors: Yuko SAYA, Taku MASAI, Masahito FURUKAWA, Masamitsu HAEMORI
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Publication number: 20150103470Abstract: An electrochemical device comprises an element body 10 in which a pair of a first inner electrode and a second inner electrode are laminated to sandwich a separator layer; an exterior sheet 4 covering the element body; a first lead terminal 18 drawn to an outside of the exterior sheet 4; and a second lead terminal 28 drawn to the outside of the exterior sheet 4. A proof stress of the exterior sheet is 390 to 980 N/mm2 in JIS Z2241, and a hardness of the exterior sheet is 230 to 380 Hv in Vickers hardness (JIS Z2244).Type: ApplicationFiled: October 15, 2014Publication date: April 16, 2015Inventor: Yuko SAYA
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Patent number: 8468693Abstract: A dielectric device has a first conductor and a dielectric disposed thereon. An intermediate region is formed between the first conductor and dielectric. In the intermediate region, an additive different from the first conductor and dielectric and the dielectric are mixed with each other. The additive contains at least one element of Si, Al, P, Mg, Mn, Y, V, Mo, Co, Nb, Fe, and Cr.Type: GrantFiled: August 25, 2010Date of Patent: June 25, 2013Assignee: TDK CorporationInventors: Tomohiko Katoh, Kenji Horino, Yuko Saya
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Patent number: 8085523Abstract: One capacitor fabrication process including metal layer forming a metal layer on one surface of a substrate, dielectric layer forming a dielectric layer on the metal layer, metal foil forming a metal foil on the dielectric layer, separating the noble metal layer from the dielectric layer, and electrode layer forming an electrode layer on the second surface of the dielectric layer, wherein the second surface faces away from the first surface of the dielectric layer with the metal foil. Another capacitor fabrication process includes separation layer forming a separation layer on one surface of a substrate, dielectric layer forming a dielectric layer on the separation layer, metal foil forming a metal foil the dielectric layer, separating the substrate from the separation layer, and an electrode layer forming an electrode layer on the second surface of the dielectric layer, wherein the second surface faces away from the first surface of said dielectric layer with the metal foil.Type: GrantFiled: December 11, 2009Date of Patent: December 27, 2011Assignee: TDK CorporationInventors: Tomohiko Kato, Yuko Saya, Osamu Shinoura
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Publication number: 20100323097Abstract: A dielectric device has a first conductor and a dielectric disposed thereon. An intermediate region is formed between the first conductor and dielectric. In the intermediate region, an additive different from the first conductor and dielectric and the dielectric are mixed with each other. The additive contains at least one element of Si, Al, P, Mg, Mn, Y, V, Mo, Co, Nb, Fe, and Cr.Type: ApplicationFiled: August 25, 2010Publication date: December 23, 2010Applicant: TDK CORPORATIONInventors: Tomohiko KATOH, Kenji Horino, Yuko Saya
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Patent number: 7808769Abstract: A dielectric device has a first conductor and a dielectric disposed thereon. An intermediate region is formed between the first conductor and dielectric. In the intermediate region, an additive different from the first conductor and dielectric and the dielectric are mixed with each other. The additive contains at least one element of Si, Al, P, Mg, Mn, Y, V, Mo, Co, Nb, Fe, and Cr.Type: GrantFiled: December 13, 2006Date of Patent: October 5, 2010Assignee: TDK CorporationInventors: Tomohiko Katoh, Kenji Horino, Yuko Saya
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Patent number: 7773364Abstract: One capacitor fabrication process including metal layer forming a metal layer on one surface of a substrate, dielectric layer forming a dielectric layer on the metal layer, metal foil forming a metal foil on the dielectric layer, separating the noble metal layer from the dielectric layer, and electrode layer forming an electrode layer on the second surface of the dielectric layer, wherein the second surface faces away from the first surface of the dielectric layer with the metal foil. Another capacitor fabrication process includes separation layer forming a separation layer on one surface of a substrate, dielectric layer forming a dielectric layer on the separation layer, metal foil forming a metal foil the dielectric layer, separating the substrate from the separation layer, and an electrode layer forming an electrode layer on the second surface of the dielectric layer, wherein the second surface faces away from the first surface of said dielectric layer with the metal foil.Type: GrantFiled: July 18, 2007Date of Patent: August 10, 2010Assignee: TDK CorporationInventors: Tomohiko Kato, Yuko Saya, Osamu Shinoura
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Publication number: 20100093150Abstract: One capacitor fabrication process of the invention comprises a noble metal layer formation step of forming a noble metal layer on one surface of a substrate, a dielectric layer formation step of forming a dielectric layer on the noble metal layer, a metal foil formation step of forming a metal foil of 10 ?m or greater in thickness on the dielectric layer, a separation step of separating the noble metal layer from the dielectric layer at an interface, and an electrode layer formation step of forming an electrode layer on the second surface of the dielectric layer separated off by the separation step, wherein the second surface faces away from the first surface of the dielectric layer with the metal foil formed thereon.Type: ApplicationFiled: December 11, 2009Publication date: April 15, 2010Applicant: TDK CORPORATIONInventors: Tomohiko KATO, Yuko Saya, Osamu Shinoura
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Patent number: 7561406Abstract: A thin film capacitor with high capacity and low leak current is provided. The thin film capacitor includes a nickel substrate with nickel (Ni) purity of 99.99 weight percent or above, and a dielectric layer and an electrode layer disposed in this order on the nickel substrate. The thin film capacitor is typically manufactured as follows. A precursor dielectric layer is formed on a nickel substrate with nickel purity of 99.99 weight percent or above, and is subjected to annealing to form a dielectric layer. The diffusion of impurities from the nickel substrate to the precursor dielectric layer during annealing is suppressed.Type: GrantFiled: March 29, 2007Date of Patent: July 14, 2009Assignee: TDK CorporationInventors: Hitoshi Saita, Yuko Saya, Kiyoshi Uchida, Kenji Horino
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Publication number: 20080072409Abstract: One capacitor fabrication process of the invention comprises a noble metal layer formation step of forming a noble metal layer on one surface of a substrate, a dielectric layer formation step of forming a dielectric layer on the noble metal layer, a metal foil formation step of forming a metal foil of 10 ?m or greater in thickness on the dielectric layer, a separation step of separating the noble metal layer from the dielectric layer at an interface, and an electrode layer formation step of forming an electrode layer on the second surface of the dielectric layer separated off by the separation step, wherein the second surface faces away from the first surface of the dielectric layer with the metal foil formed thereon.Type: ApplicationFiled: July 18, 2007Publication date: March 27, 2008Applicant: TDK CORPORATIONInventors: Tomohiko KATO, Yuko Saya, Osamu Shinoura
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Publication number: 20070230086Abstract: A thin film capacitor with high capacity and low leak current is provided. The thin film capacitor includes a nickel substrate with nickel (Ni) purity of 99.99 weight percent or above, and a dielectric layer and an electrode layer disposed in this order on the nickel substrate. The thin film capacitor is typically manufactured as follows. A precursor dielectric layer is formed on a nickel substrate with nickel purity of 99.99 weight percent or above, and is subjected to annealing to form a dielectric layer. The diffusion of impurities from the nickel substrate to the precursor dielectric layer during annealing is suppressed.Type: ApplicationFiled: March 29, 2007Publication date: October 4, 2007Applicant: TDK CORPORATIONInventors: Hitoshi Saita, Yuko Saya, Kiyoshi Uchida, Kenji Horino
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Publication number: 20070138128Abstract: A dielectric device has a first conductor and a dielectric disposed thereon. An intermediate region is formed between the first conductor and dielectric. In the intermediate region, an additive different from the first conductor and dielectric and the dielectric are mixed with each other. The additive contains at least one element of Si, Al, P, Mg, Mn, Y,V,Mo, Co, Nb, Fe, and Cr.Type: ApplicationFiled: December 13, 2006Publication date: June 21, 2007Applicant: TDK CORPORATIONInventors: Tomohiko Katoh, Kenji Horino, Yuko Saya