Patents by Inventor Toshiya Kawasaki
Toshiya Kawasaki 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: 11531909Abstract: The purpose of the present invention is to train a learning model and thereby create a utility model, and assist with an operation for making practical use thereof. Provided is a computer system 50 for preparing learning models in one or more learning units 102; receiving an input of learning data from a data source 111, and training said one or more learning models using the learning data. One or more utility models are finalized on the basis of said one or more trained learning models, and said one or more utility models are deployed to one or more inference units 114. Each of said one or more inference units 114: receives an input of utility data from the data source 111; provides the utility data to the utility models and executes an inference; and transmits, to a data target 113, inference result data outputted from the utility models.Type: GrantFiled: February 5, 2018Date of Patent: December 20, 2022Assignee: Abeja, Inc.Inventors: Yousuke Okada, Takanori Ogata, Toshiya Kawasaki, Takuma Teramoto
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Patent number: 11183340Abstract: A method of producing a solid electrolytic capacitor, including a step of forming a dielectric film on the surface of a valve-acting metal having fine pores and a step of forming a solid electrolyte layer containing a conductive polymer on the dielectric film; wherein the solid electrolyte layer containing the conductive polymer is formed without using an oxidizing agent by: (i) a method of polymerizing at least one of the compounds (A1) represented by formula (1) disclosed herein in the presence of a compound (B) having a sulfo group; (ii) a method of copolymerizing at least one compound (A2) represented by formula (2) disclosed herein; and (iii) a method of polymerizing at least one of the compounds (A1) and (A2).Type: GrantFiled: September 29, 2017Date of Patent: November 23, 2021Assignee: SHOWA DENKO K.K.Inventors: Takeshi Kawamoto, Yuka Niimi, Toshiya Kawasaki, Yoshinori Shibuya, Takeshi Kohama
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Publication number: 20200167671Abstract: The purpose of the present invention is to train a learning model and thereby create a utility model, and assist with an operation for making practical use thereof. Provided is a computer system 50 for preparing learning models in one or more learning units 102; receiving an input of learning data from a data source 111, and training said one or more learning models using the learning data. One or more utility models are finalized on the basis of said one or more trained learning models, and said one or more utility models are deployed to one or more inference units 114. Each of said one or more inference units 114: receives an input of utility data from the data source 111; provides the utility data to the utility models and executes an inference; and transmits, to a data target 113, inference result data outputted from the utility models.Type: ApplicationFiled: February 5, 2018Publication date: May 28, 2020Inventors: Yousuke OKADA, Takanori OGATA, Toshiya KAWASAKI, Takuma TERAMOTO
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Publication number: 20200090874Abstract: A method of producing a solid electrolytic capacitor, including a step of forming a dielectric film on the surface of a valve-acting metal having fine pores and a step of forming a solid electrolyte layer containing a conductive polymer on the dielectric film; wherein the solid electrolyte layer containing the conductive polymer is formed without using an oxidizing agent by: (i) a method of polymerizing at least one of the compounds (A1) represented by formula (1) disclosed herein in the presence of a compound (B) having a sulfo group; (ii) a method of copolymerizing at least one compound (A2) represented by formula (2) disclosed herein; and (iii) a method of polymerizing at least one of the compounds (A1) and (A2).Type: ApplicationFiled: September 29, 2017Publication date: March 19, 2020Applicant: SHOWA DENKO K.K.Inventors: Takeshi KAWAMOTO, Yuka NIIMI, Toshiya KAWASAKI, Yoshinori SHIBUYA, Takeshi KOHAMA
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Publication number: 20160254100Abstract: A method of producing a niobium granulated powder, including the steps of: mixing niobium hydride and a metal oxide by a mechanical alloying method to produce a mechanical alloy; pulverizing the mechanical alloy; subjecting the pulverized mechanical alloy to heat treatment to allow the pulverized mechanical alloy to aggregate, to thereby form a granulated product. Also disclosed is a sintered body of the niobium granulated powder, an anode body produced from the sintered body and a capacitor including the sintered body.Type: ApplicationFiled: October 7, 2014Publication date: September 1, 2016Applicant: SHOWA DENKO K.K.Inventors: Yoshinori SHIBUYA, Yasuo TSUMITA, Toshiya KAWASAKI
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Publication number: 20150352637Abstract: A chemical conversion body obtained from a niobium granulated product being porous and having high binding strength, an electrolytic capacitor including the chemical conversion body and a production method thereof. The capacitor includes a chemical conversion body which has a dielectric layer on its surface and a metal element other than niobium distributed therein so that the metal element surrounds niobium; and a cathode formed on the dielectric layer on the surface of the chemical conversion body. The chemical conversion body is produced by mixing niobium hydride and a compound containing a metal element other than niobium; and subjecting the mixture to heat treatment at a temperature higher than a diffusion starting temperature of the compound containing a metal element other than niobium to obtain a niobium granulated product; sintering the granulated product; and subjecting the sintered body to electrolytic oxidation to form a dielectric layer on its surface.Type: ApplicationFiled: December 26, 2013Publication date: December 10, 2015Applicant: SHOWA DENKO K.K.Inventors: Yoshinori SHIBUYA, Yasuo TSUMITA, Toshiya KAWASAKI
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Publication number: 20150340162Abstract: A chemical conversion body, electrolytic capacitor and production method are disclosed. The capacitor contains a chemical conversion body obtained by sintering a niobium granulated product. The sintered product is obtained by mixing niobium hydride and a niobium-aluminum intermetallic compound, pulverizing the mixture, and allowing the mixture to agglomerate by heat treatment to thereby form a granulated product; sintering the granulated product; and subjecting the sintered body to electrolytic oxidation to form a dielectric layer on the surface of the sintered body; in which chemical conversion body the sites of aluminum localization having a size of 0.1 ?m to 0.5 ?m are scattered in a depth of less than 0.06 ?m from the surface of the dielectric layer. Nb2Al and Nb3Al can be preferably used as a niobium-aluminum intermetallic compound.Type: ApplicationFiled: December 26, 2013Publication date: November 26, 2015Applicant: SHOWA DENKO K.K.Inventors: Yoshinori SHIBUYA, Yasuo TSUMITA, Toshiya KAWASAKI
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Patent number: 7986508Abstract: (1) A niobium monoxide powder for a capacitor represented by formula: NbOx (x=0.8 to 1.2) and optionally containing other elements in an amount of 50 to 200,000 ppm, having a tapping density of 0.5 to 2.5 g/ml, an average particle size of 10 to 1000 ?m, angle of repose from 10° to 60°, the BET specific surface area from 0.5 to 40 m2/g and a plurality of pore diameter peak tops in the pore distribution, and a producing method thereof; (2) a niobium monoxide sintered body, which is obtained by sintering the above niobium monoxide powder and, having a plurality of pore diameter peak tops in a range of 0.01 ?m to 500 ?m, preferably, the peak tops of two peaks among the plurality of pore diameter peak tops having a highest relative intensity are present in the range of 0.2 to 0.7 ?m and in the range of 0.7 to 3 ?m, respectively, and a producing method thereof; (3) a capacitor using the above sintered body and a producing method thereof; and (4) an electronic circuit and electronic device using the above capacitor.Type: GrantFiled: May 3, 2010Date of Patent: July 26, 2011Assignee: Showa Denko K.K.Inventors: Kazuhiro Omori, Kazumi Naito, Toshiya Kawasaki, Wada Kouichi
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Publication number: 20100213407Abstract: (1) A niobium monoxide powder for a capacitor represented by formula: NbOx (x=0.8 to 1.2) and optionally containing other elements in an amount of 50 to 200,000 ppm, having a tapping density of 0.5 to 2.5 g/ml, an average particle size of 10 to 1000 ?m, angle of repose from 10° to 60°, the BET specific surface area from 0.5 to 40 m2/g and a plurality of pore diameter peak tops in the pore distribution, and a producing method thereof; (2) a niobium monoxide sintered body, which is obtained by sintering the above niobium monoxide powder and, having a plurality of pore diameter peak tops in a range of 0.01 ?m to 500 ?m, preferably, the peak tops of two peaks among the plurality of pore diameter peak tops having a highest relative intensity are present in the range of 0.2 to 0.7 ?m and in the range of 0.7 to 3 ?m, respectively, and a producing method thereof; (3) a capacitor using the above sintered body and a producing method thereof; and (4) an electronic circuit and electronic device using the above capacitor.Type: ApplicationFiled: May 3, 2010Publication date: August 26, 2010Applicant: SHOWA DENKO K.K.Inventors: Kazuhiro OMORI, Kazumi Naito, Toshiya Kawasaki, Kouichi Wada
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Publication number: 20100208414Abstract: (1) A niobium monoxide powder for a capacitor represented by formula: NbOx (x=0.8 to 1.2) and optionally containing other elements in an amount of 50 to 200,000 ppm, having a tapping density of 0.5 to 2.5 g/ml, an average particle size of 10 to 1000 ?m, angle of repose from 10° to 60°, the BET specific surface area from 0.5 to 40 m2/g and a plurality of pore diameter peak tops in the pore distribution, and a producing method thereof; (2) a niobium monoxide sintered body, which is obtained by sintering the above niobium monoxide powder and, having a plurality of pore diameter peak tops in a range of 0.01 ?m to 500 ?m, preferably, the peak tops of two peaks among the plurality of pore diameter peak tops having a highest relative intensity are present in the range of 0.2 to 0.7 ?m and in the range of 0.7 to 3 ?m, respectively, and a producing method thereof; (3) a capacitor using the above sintered body and a producing method thereof; and (4) an electronic circuit and electronic device using the above capacitor.Type: ApplicationFiled: May 3, 2010Publication date: August 19, 2010Applicant: SHOWA DENKO K.K.Inventors: Kazuhiro OMORI, Kazumi Naito, Toshiya Kawasaki, Kouichi Wada
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Patent number: 7737066Abstract: (1) A niobium monoxide powder for a capacitor represented by formula: NbOx (x=0.8 to 1.2) and optionally containing other elements in an amount of 50 to 200,000 ppm, having a tapping density of 0.5 to 2.5 g/ml, an average particle size of 10 to 1000 ?m, angle of repose from 10° to 60°, the BET specific surface area from 0.5 to 40 m2/g and a plurality of pore diameter peak tops in the pore distribution, and a producing method thereof; (2) a niobium monoxide sintered body, which is obtained by sintering the above niobium monoxide powder and, having a plurality of pore diameter peak tops in a range of 0.01 ?m to 500 ?m, preferably, the peak tops of two peaks among the plurality of pore diameter peak tops having a highest relative intensity are present in the range of 0.2 to 0.7 ?m and in the range of 0.7 to 3 ?m, respectively, and a producing method thereof; (3) a capacitor using the above sintered body and a producing method thereof; and (4) an electronic circuit and electronic device using the above capacitor.Type: GrantFiled: March 7, 2003Date of Patent: June 15, 2010Assignee: Showa Denko K.K.Inventors: Kazuhiro Omori, Kazumi Naito, Toshiya Kawasaki, Kouichi Wada
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Publication number: 20090035592Abstract: The invention provides a complex oxide film having a high crystallinity, produced by forming the complex oxide film on a substrate surface and then calcining the complex oxide film in atmospheric gas under oxygen partial pressure of 1×10?3 Pa or less at 400° C. or more and a production method thereof. Further, the invention provides a dielectric or piezoelectric material containing the complex oxide film, a capacitor and a piezoelectric element using the material, and an electronic device comprising the element.Type: ApplicationFiled: July 28, 2006Publication date: February 5, 2009Applicant: SHOWA DENKO K.K.Inventors: Akihiko Shirakawa, Toshiya Kawasaki, Hirofumi Fukunaga
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Patent number: 7374596Abstract: (1) A niobium powder for a capacitor having a tapping density of 0.5 to 2.5 g/ml, an average particle size of 10 to 1000 ?m, angle of repose from 10° to 60°, the BET specific surface area from 0.5 to 40 m2/g and a plurality of pore diameter peak tops in the pore distribution, and a producing method thereof; (2) a niobium sintered body, which is obtained by sintering the above niobium powder and, having a plurality of pore diameter peak tops in a range of 0.01 ?m to 500 ?m, preferably, the peak tops of two peaks among the plurality of pore diameter peak tops having a highest relative intensity are present in the range of 0.2 to 0.7 ?m and in the range of 0.7 to 3 ?m, respectively, and a producing method thereof; (3) a capacitor using the above sintered body and a producing method thereof; and (4) an electronic circuit and electronic device using the above capacitor.Type: GrantFiled: February 28, 2005Date of Patent: May 20, 2008Assignee: Showa Denko K.K.Inventors: Kazuhiro Omori, Kazumi Naito, Toshiya Kawasaki, Kouichi Wada
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Patent number: 7138004Abstract: A niobium hydride or niobium hydride alloy is ground at a temperature of ?200 to 30° C. in the presence of a dispersion medium to obtain a niobium powder for capacitors, having a low oxygen content, the niobium powder for capacitors is granulated to obtain a niobium granulated product for capacitors, having an average particle size of 10 to 500 ?m, the niobium powder or granulated powder for capacitors is sintered to obtain a sintered body, and a capacitor is fabricated by forming a dielectric material on the surface of the sintered body and providing another part electrode on the dielectric material, whereby a capacitor having good LC characteristics and less dispersed in the LC characteristics is obtained.Type: GrantFiled: March 4, 2004Date of Patent: November 21, 2006Assignee: Showa Denko K.K.Inventors: Kouichi Wada, Yasuo Tsumita, Toshiya Kawasaki, Kazumi Naito, Kazuhiro Omori
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Patent number: 6934146Abstract: A niobium powder for a capacitor having a tapping density of 0.5 to 2.5 g/ml, and average particle size of 10 to 1000 ?mum, angle of repose form 10° to 60°, the BET specific surface area from 0.5 to 40 m2/g and a plurity of pore diameter peak tops in the pore distribution, and a producing method therof; (2) a niobium sintered body, which is obtained by sintering the above niobium powder and, having a plurality of pore diameter peak tops in a range of 0.01 ?mum to 500 ?mum, preferably, the peak tops of two peaks among the plurality of pore diameter peak tops having a highest relative intensity are present in the range of 0.2 to 0.7 ?mum and in the range of 0.7 to 3 ?mum, respectively, and a producing method thereof; (3) a capacitor using the above sintered body and a producing method thereof, and (4) an electronic circuit and electronic device using the above capacitor.Type: GrantFiled: May 14, 2002Date of Patent: August 23, 2005Assignee: Showa Denko K.K.Inventors: Kazuhiro Omori, Kazumi Naito, Toshiya Kawasaki, Kouichi Wada
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Publication number: 20050139037Abstract: (1) A niobium powder for a capacitor having a tapping density of 0.5 to 2.5 g/ml, an average particle size of 10 to 1000 ?m, angle of repose from 10° to 60°, the BET specific surface area from 0.5 to 40 m2/g and a plurality of pore diameter peak tops in the pore distribution, and a producing method thereof; (2) a niobium sintered body, which is obtained by sintering the above niobium powder and, having a plurality of pore diameter peak tops in a range of 0.01 ?m to 500 ?m, preferably, the peak tops of two peaks among the plurality of pore diameter peak tops having a highest relative intensity are present in the range of 0.2 to 0.7 ?m and in the range of 0.7 to 3 ?m, respectively, and a producing method thereof; (3) a capacitor using the above sintered body and a producing method thereof; and (4) an electronic circuit and electronic device using the above capacitor.Type: ApplicationFiled: February 28, 2005Publication date: June 30, 2005Inventors: Kazuhiro Omori, Kazumi Naito, Toshiya Kawasaki, Kouichi Wada
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Publication number: 20040168548Abstract: A niobium hydride or niobium hydride alloy is ground at a temperature of −200 to 30° C. in the presence of a dispersion medium to obtain a niobium powder for capacitors, having a low oxygen content, the niobium powder for capacitors is granulated to obtain a niobium granulated product for capacitors, having an average particle size of 10 to 500 &mgr;m, the niobium powder or granulated powder for capacitors is sintered to obtain a sintered body, and a capacitor is fabricated by forming a dielectric material on the surface of the sintered body and providing another part electrode on the dielectric material, whereby a capacitor having good LC characteristics and less dispersed in the LC characteristics is obtained.Type: ApplicationFiled: March 4, 2004Publication date: September 2, 2004Applicant: SHOWA DENKO K.K.Inventors: Kouichi Wada, Yasuo Tsumita, Toshiya Kawasaki, Kazumi Naito, Kazuhiro Omori
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Patent number: 6780218Abstract: A niobium hydride or niobium hydride alloy is ground at a temperature of −200 to 30° C. in the presence of a dispersion medium to obtain a niobium powder for capacitors, having a low oxygen content, the niobium powder for capacitors is granulated to obtain a niobium granulated product for capacitors, having an average particle size of 10 to 500 &mgr;m, the niobium powder or granulated powder for capacitors is sintered to obtain a sintered body, and a capacitor is fabricated by forming a dielectric material on the surface of the sintered body and providing another part electrode on the dielectric material, whereby a capacitor having good LC characteristics and less dispersed in the LC characteristics is obtained.Type: GrantFiled: June 20, 2002Date of Patent: August 24, 2004Assignee: Showa Denko Kabushiki KaishaInventors: Kouichi Wada, Yasuo Tsumita, Toshiya Kawasaki, Kazumi Naito, Kazuhiro Omori
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Publication number: 20030218857Abstract: A niobium powder for a capacitor having a tapping density of 0.5 to 2.5 g/ml, and average particle size of 10 to 1000 &mgr;mum, angle of repose form 10° to 60°, the BET specific surface area from 0.5 to 40 m2/g and a plurity of pore diameter peak tops in the pore distribution, and a producing method therof; (2) a niobium sintered body, which is obtained by sintering the above niobium powder and, having a plurality of pore diameter peak tops in a range of 0.01 &mgr;mum to 500 &mgr;mum, preferably, the peak tops of two peaks among the plurality of pore diameter peak tops having a highest relative intensity are present in the range of 0.2 to 0.7 &mgr;mum and in the range of 0.7 to 3 &mgr;mum, respectively, and a produing method thereof; (3) a capacitor using the above sintered body and a producing method thereof; and (4) an electronic circuit and electronic device using the above capacitor.Type: ApplicationFiled: February 6, 2003Publication date: November 27, 2003Inventors: Kazuhiro Omori, Kazumi Naito, Toshiya Kawasaki, Kouichi Wada
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Publication number: 20030170169Abstract: (1) A niobium monoxide powder for a capacitor represented by formula: NbOx (x=0.8 to 1.2) and optionally containing other elements in an amount of 50 to 200,000 ppm, having a tapping density of 0.5 to 2.5 g/ml, an average particle size of 10 to 1000 &mgr;m, angle of repose from 10° to 60°, the BET specific surface area from 0.5 to 40 m2/g and a plurality of pore diameter peak tops in the pore distribution, and a producing method thereof; (2) a niobium monoxide sintered body, which is obtained by sintering the above niobium monoxide powder and, having a plurality of pore diameter peak tops in a range of 0.01 &mgr;m to 500 &mgr;m, preferably, the peak tops of two peaks among the plurality of pore diameter peak tops having a highest relative intensity are present in the range of 0.2 to 0.7 &mgr;m and in the range of 0.Type: ApplicationFiled: March 7, 2003Publication date: September 11, 2003Applicant: SHOWA DENKO K.K.Inventors: Kazuhiro Omori, Kazumi Naito, Toshiya Kawasaki, Kouichi Wada