Patents by Inventor Taku Murakami
Taku Murakami 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: 11955283Abstract: A dielectric ceramic composition includes a barium titanate, an oxide of an R element, an oxide of an M element, and an oxide containing Si. The R element is one or more elements selected from Eu, Gd, Tb, Dy, Y, Ho, and Yb. The M element is one or more elements selected from Mg, Ca, Mn, V, and Cr. A ratio of an amount of the oxide of the R element in terms of R2O3 to an amount of the oxide containing Si in terms of SiO2 is 0.8:1 to 2.2:1. A ratio of an amount of the oxide of the M element in terms of MO to the amount of the oxide containing Si in terms of SiO2 is 0.2:1 to 1.8:1.50% or more of the number of dielectric particles constituting the dielectric ceramic composition is core-shell dielectric particles having a core-shell structure.Type: GrantFiled: March 8, 2021Date of Patent: April 9, 2024Assignee: TDK CORPORATIONInventors: Taku Murakami, Nobuto Morigasaki, Dan Sakurai, Takuma Ariizumi, Toshihiko Kaneko
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Publication number: 20240052336Abstract: The present disclosure relates to systems, devices and methods for the enhanced efficiency of capturing agents of interest from a sample.Type: ApplicationFiled: September 30, 2020Publication date: February 15, 2024Applicants: SHOWA DENKO MATERIALS (AMERICA), INC., SHOWA DENKO MATERIALS CO., LTD.Inventor: Taku Murakami
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Publication number: 20240047136Abstract: A multilayer electronic device includes an element body and a pair of external electrodes. The element body includes an interior region in which inner dielectric layers and internal electrode layers are alternately laminated and an exterior region located outside the interior region in its lamination direction. The pair of external electrodes exists on surfaces of the element body. Main-phase particles in the inner dielectric layers and outer dielectric layers of the exterior region include a main component having a perovskite crystal structure represented by a general formula of ABO3. r1<r2<r1×4.0 is satisfied, in which r1 is an average particle size of the main-phase particles constituting the inner dielectric layers, and r2 is an average particle size of the main-phase particles constituting the outer dielectric layers.Type: ApplicationFiled: July 24, 2023Publication date: February 8, 2024Applicant: TDK CORPORATIONInventors: Taku MURAKAMI, Nobuto MORIGASAKI, Takuma ARIIZUMI, Yoshitaka NAGASHIMA, Masato KIMURA
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Patent number: 11854743Abstract: A dielectric composition includes main-phase particles each including a main component having a perovskite crystal structure represented by a general formula of ABO3. At least a part of the main-phase particles has a core-shell structure. The dielectric composition includes RA, RB, M, and Si. Each of A, B, RA, RB, and M is one or more elements selected from a specific element group. SRA/SRB>CRA/CRB is satisfied, where CRA is an RA content (mol %) to the main component in terms of RA2O3, and CRB is an RB content (mol %) to the main component in terms of RB2O3, in the dielectric composition, and SRA is an average RA content (mol %), and SRB is an average RB content (mol %), in a shell part of the core-shell structure.Type: GrantFiled: January 31, 2022Date of Patent: December 26, 2023Assignee: TDK CORPORATIONInventors: Taku Murakami, Nobuto Morigasaki, Takuma Ariizumi, Toshihiko Kaneko, Yasuhiro Ito
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Patent number: 11842851Abstract: A dielectric composition includes a main phase and segregation phases each including RE (at least one rare earth element). The main phase includes a main component having a perovskite crystal structure of ABO3 (A is one or more selected from Ba, Sr, and Ca, and B is one or more selected from Ti, Zr, and Hf). The segregation phases are classified into first segregation phases whose atomic ratio of Si to RE is 0 or more and 0.20 or less and second segregation phases whose atomic ratio of Si to the RE is more than 0.20. 0?S1/S2?0.10 is satisfied on a cross section of the dielectric composition, where S1 is an area ratio of the first segregation phases, and S2 is an area ratio of the second segregation phases. An atomic ratio of Si to RE in the second segregation phases is 0.80 or less on average.Type: GrantFiled: January 31, 2022Date of Patent: December 12, 2023Assignee: TDK CORPORATIONInventors: Takuma Ariizumi, Taku Murakami, Nobuto Morigasaki, Toshihiko Kaneko, Yasuhiro Ito
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Publication number: 20220254570Abstract: A dielectric composition includes a main phase, first segregation phases, and second segregation phases. The main phase includes a main component having a perovskite crystal structure of ABO3 (A is one or more selected from Ba, Sr, and Ca, and B is one or more selected from Ti, Zr, and Hf). The first segregation phases include RE (one or more selected from rare earth elements), A, Si, Ti, and O. The second segregation phases include RE, A, Ti, and O and do not substantially include Si. 0.10<S2/S1?1.50 is satisfied on a cross section of the dielectric composition, where S1 is an area ratio of the first segregation phases, and S2 is an area ratio of the second segregation phases.Type: ApplicationFiled: February 1, 2022Publication date: August 11, 2022Applicant: TDK CORPORATIONInventors: Takuma ARIIZUMI, Taku MURAKAMI, Nobuto MORIGASAKI, Toshihiko KANEKO, Yasuhiro ITO
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Publication number: 20220254568Abstract: A dielectric composition includes main-phase particles each including a main component having a perovskite crystal structure represented by a general formula of ABO3. At least a part of the main-phase particles has a core-shell structure. The dielectric composition includes RA, RB, M, and Si. Each of A, B, RA, RB, and M is one or more elements selected from a specific element group. SRA/SRB>CRA/CRB is satisfied, where CRA is an RA content (mol %) to the main component in terms of RA2O3, and CRB is an RB content (mol %) to the main component in terms of RB2O3, in the dielectric composition, and SRA is an average RA content (mol %), and SRB is an average RB content (mol %), in a shell part of the core-shell structure.Type: ApplicationFiled: January 31, 2022Publication date: August 11, 2022Applicant: TDK CORPORATIONInventors: Taku MURAKAMI, Nobuto MORIGASAKI, Takuma ARIIZUMI, Toshihiko KANEKO, Yasuhiro ITO
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Publication number: 20220254569Abstract: A dielectric composition includes a main phase and segregation phases each including RE (at least one rare earth element). The main phase includes a main component having a perovskite crystal structure of ABO3 (A is one or more selected from Ba, Sr, and Ca, and B is one or more selected from Ti, Zr, and Hf). The segregation phases are classified into first segregation phases whose atomic ratio of Si to RE is 0 or more and 0.20 or less and second segregation phases whose atomic ratio of Si to the RE is more than 0.20. 0?S1/S2?0.10 is satisfied on a cross section of the dielectric composition, where S1 is an area ratio of the first segregation phases, and S2 is an area ratio of the second segregation phases. An atomic ratio of Si to RE in the second segregation phases is 0.80 or less on average.Type: ApplicationFiled: January 31, 2022Publication date: August 11, 2022Applicant: TDK CORPORATIONInventors: Takuma ARIIZUMI, Taku MURAKAMI, Nobuto MORIGASAKI, Toshihiko KANEKO, Yasuhiro ITO
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Publication number: 20220254567Abstract: A dielectric composition includes a main-phase particle and segregation particles. The main-phase particle includes a main component having a perovskite crystal structure represented by a general formula of ABO3. The dielectric composition includes RA, RB, M, and Si. Each of A, B, RA, RB, and M is one or more elements selected from a specific element group. Each of an RA content CRA to the main component, an RB content CRB to the main component, an M content to the main component, and a Si content to the main component is within a predetermined range. 0.50<(?/?)/(CRA/CRB)?1.00 is satisfied, where a is an average RA content (mol %) and f3 is an average RB content (mol %) of specific segregation particles mainly including RA, RB, Si, Ba, and Ti in the segregation particles.Type: ApplicationFiled: January 31, 2022Publication date: August 11, 2022Applicant: TDK CORPORATIONInventors: Taku MURAKAMI, Nobuto MORIGASAKI, Takuma ARIIZUMI, Toshihiko KANEKO, Yasuhiro ITO
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Publication number: 20210304966Abstract: A dielectric ceramic composition includes a barium titanate, an oxide of an R element, an oxide of an M element, and an oxide containing Si. The R element is one or more elements selected from Eu, Gd, Tb, Dy, Y, Ho, and Yb. The M element is one or more elements selected from Mg, Ca, Mn, V, and Cr. A ratio of an amount of the oxide of the R element in terms of R2O3 to an amount of the oxide containing Si in terms of SiO2 is 0.8:1 to 2.2:1. A ratio of an amount of the oxide of the M element in terms of MO to the amount of the oxide containing Si in terms of SiO2 is 0.2:1 to 1.8:1.50% or more of the number of dielectric particles constituting the dielectric ceramic composition is core-shell dielectric particles having a core-shell structure.Type: ApplicationFiled: March 8, 2021Publication date: September 30, 2021Applicant: TDK CORPORATIONInventors: Taku MURAKAMI, Nobuto MORIGASAKI, Dan SAKURAI, Takuma ARIIZUMI, Toshihiko KANEKO
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Publication number: 20210277483Abstract: The present disclosure relates to methods of collecting exosomes and microvesicles (EMV) from urine, isolating corresponding mRNA, and analyzing expression patterns in order to diagnose and treat various urothelial cancers. In particular, various expression patterns are analyzed through a unique diagnostic formula.Type: ApplicationFiled: April 23, 2021Publication date: September 9, 2021Inventors: Taku Murakami, Cindy M. Yamamoto, Masato Mitsuhashi, Hiroshi Harada
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Patent number: 11028443Abstract: The present disclosure relates to methods of collecting exosomes and microvesicles (EMV) from urine, isolating corresponding mRNA, and analyzing expression patterns in order to diagnose and treat various urothelial cancers. In particular, various expression patterns are analyzed through a unique diagnostic formula.Type: GrantFiled: August 30, 2016Date of Patent: June 8, 2021Assignees: Showa Denko Materials Co., Ltd., Showa Denko Materials (America), Inc., City of SapporoInventors: Taku Murakami, Cindy M. Yamamoto, Masato Mitsuhashi, Hiroshi Harada
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Patent number: 10697001Abstract: Provided herein are devices and methods for the capture or isolation of a biomarker from a biological sample. In several embodiments, the device comprises a loading region, a filter material, and a receiving region. In particular, in several embodiments, biological fluid is passed from the loading region through the filter material and into the receiving region, thereby resulting in capture or isolation of a biomarker.Type: GrantFiled: March 10, 2017Date of Patent: June 30, 2020Assignees: HITACHI CHEMICAL CO., LTD., HITACHI CHEMICAL CO. AMERICA, LTD.Inventors: Masato Mitsuhashi, Taku Murakami
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Patent number: 10542745Abstract: Disclosed are methods, device kits, and systems for improved quantification of mRNA from whole blood. More particularly, the devices and kites related thereto are useful for the controlled and repeatable ex vivo stimulation of whole blood.Type: GrantFiled: October 31, 2011Date of Patent: January 28, 2020Assignees: Hitachi Chemical Co., Ltd., Hitachi Chemical Company America, Ltd.Inventors: Masato Mitsuhashi, Taku Murakami
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Patent number: 10470262Abstract: The invention is to provide an electrical circuit and a control method remotely controlling LED brightness adjustment and color temperature adjustment, and the electrical circuit includes a voltage stabilizing circuit, a microprocessor MCU, a receiving module, an LED constant current driving circuit, an LED light adjustment and color temperature adjustment separation circuit, a bicolor temperature LED light source and system processing software.Type: GrantFiled: January 22, 2019Date of Patent: November 5, 2019Inventors: Osamu Murakami, Toshio Murakami, Taku Murakami
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Patent number: 10370719Abstract: The present disclosure relates to methods of collecting exosomes and microvesicles (EMV) from urine and isolating corresponding mRNA in order to diagnose and treat acute kidney injury (AKI). In particular, certain embodiments relate to the method of capturing EMV from urine applied to a filter device that is capable of capturing EMV. Nucleic acids such as mRNA can be isolated from the EMV using an oligo(dT)-coated plate designed to accommodate the filter device and then used for further molecular analysis. Quantification of the collected nucleic acids may then be used in the diagnosis and/or treatment of IBD.Type: GrantFiled: November 12, 2015Date of Patent: August 6, 2019Assignees: Hitachi Chemical Co., Ltd., Hitachi Chemical Co. America, Ltd., The Regents of the University of CaliforniaInventors: Satish P. RamachandraRao, Ravindra Lall Mehta, Masato Mitsuhashi, Taku Murakami
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Publication number: 20190230760Abstract: The invention is to provide an electrical circuit and a control method remotely controlling LED brightness adjustment and color temperature adjustment, and the electrical circuit includes a voltage stabilizing circuit, a microprocessor MCU, a receiving module, an LED constant current driving circuit, an LED light adjustment and color temperature adjustment separation circuit, a bicolor temperature LED light source and system processing software.Type: ApplicationFiled: January 22, 2019Publication date: July 25, 2019Inventors: Osamu MURAKAMI, Toshio MURAKAMI, Taku MURAKAMI
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Publication number: 20180327852Abstract: The present disclosure relates to methods of collecting exosomes and microvesicles (EMV) from urine, isolating corresponding mRNA, and analyzing expression patterns in order to diagnose and treat various urothelial cancers. In particular, various expression patterns are analyzed through a unique diagnostic formula.Type: ApplicationFiled: August 30, 2016Publication date: November 15, 2018Inventors: Taku Murakami, Cindy M. Yamamoto, Masato Mitsuhashi, Hiroshi Harada
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Publication number: 20180265914Abstract: The present disclosure relates to methods of collecting exosomes and microvesicles (EMV) from urine, isolating corresponding mRNA, and analyzing expression patterns in order to diagnose and treat various post-kidney transplant complications. In particular, annexin1 mRNA expression patterns are analyzed through a unique diagnostic formula.Type: ApplicationFiled: August 30, 2016Publication date: September 20, 2018Inventors: Taku Murakami, Cindy M. Yamamoto, Masato Mitsuhashi, Hiroshi Harada
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Publication number: 20170335397Abstract: The present disclosure relates to methods of collecting exosomes and microvesicles (EMV) from urine and isolating corresponding mRNA in order to diagnose and treat acute kidney injury (AKI). In particular, certain embodiments relate to the method of capturing EMV from urine applied to a filter device that is capable of capturing EMV. Nucleic acids such as mRNA can be isolated from the EMV using an oligo(dT)-coated plate designed to accommodate the filter device and then used for further molecular analysis. Quantification of the collected nucleic acids may then be used in the diagnosis and/or treatment of IBD.Type: ApplicationFiled: November 12, 2015Publication date: November 23, 2017Inventors: Satish P. RamachandraRao, Ravindra Lall Mehta, Masato Mitsuhashi, Taku Murakami