Patents by Inventor Satoshi Muramatsu
Satoshi Muramatsu 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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Publication number: 20230083171Abstract: In a multilayer ceramic capacitor, when a dimension in a length direction between a first end surface and a second end surface of a multilayer body is defined as l, a dimension in a width direction between a first lateral surface and a second lateral surface of the multilayer body is defined as w, and a dimension in a height direction between a first main surface and a second main surface of the multilayer body is defined as t, a dimensional relationship of w>l>t is satisfied, and a fourth surface portion and a fifth surface portion of the first external electrode, and a ninth surface portion and a tenth surface portion of the second external electrode each include an opening portion at which a surface of the multilayer body is exposed.Type: ApplicationFiled: August 26, 2022Publication date: March 16, 2023Inventors: Kotaro KISHI, Satoshi MURAMATSU
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Patent number: 11600440Abstract: A multilayer ceramic capacitor includes: a laminate including dielectric layers and internal electrode layers; and external electrodes on the main surfaces of the laminate. The laminate further includes a first via conductor, a second via conductor, a third via conductor, and a fourth via conductor that connect the internal electrode layers and the external electrodes. The external electrodes include first external electrodes, second external electrodes, third external electrodes, and fourth external electrodes, each connected to the respective end surfaces of the via conductor. Each of the external electrodes does not extend to the side surfaces of the laminate. A ratio W/L of a dimension W in the width direction of the multilayer ceramic capacitor to a dimension L in the length direction of the multilayer ceramic capacitor is about 0.85 or more and about 1 or less. The dimension L in the length direction of the multilayer ceramic capacitor is about 750 ?m or smaller.Type: GrantFiled: December 11, 2020Date of Patent: March 7, 2023Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Suguru Nakano, Satoshi Muramatsu, Risa Hojo, Yoshiyuki Nomura
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Patent number: 11573526Abstract: An imaging system includes a rotatable image carrier; a rotatable developer carrier, a storage container, and an air flow generator. The developer carrier transfers toner to the image carrier at a developing region located between the image carrier and the developer carrier. The storage container stores the developer carrier. The air flow generator is separated from the storage container by a gap, and rotates in a rotational direction that is opposite to a rotational direction of the developer carrier, to channel an air flow through the gap when the air flow generator rotates.Type: GrantFiled: November 15, 2019Date of Patent: February 7, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Satoshi Muramatsu, Shinichiro Suzukawa, Tadao Mori
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Publication number: 20230018369Abstract: A multilayer ceramic electronic component includes a multilayer body including ceramic layers that are laminated, first and second internal electrode layers respectively on the ceramic layers and exposed to first and second end surfaces, first and second external electrodes respectively connected to the first and second internal electrode layers. The first and second external electrodes include a base electrode layer including at least one of Ni, Cr, Cu, or Ti and a plating layer including lower, middle, and upper layer plating layers. A particle diameter of a metal included in the lower layer plating layer is larger than a particle diameter of a metal included in the middle layer plating layer.Type: ApplicationFiled: June 24, 2022Publication date: January 19, 2023Inventors: Ken TOMINAGA, Satoshi MURAMATSU
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Patent number: 11557437Abstract: A multilayer ceramic capacitor includes an external electrode including an underlying electrode layer, a lower plating layer on the underlying electrode layer at a first end surface and a second end surface, and an upper plating layer on the lower plating layer. The underlying electrode layer is a thin film electrode including at least one selected from Ni, Cr, Cu, and Ti. The lower plating layer is a Cu plating layer including a lower layer region located closer to the multilayer body and an upper layer region located between the lower layer region and the upper plating layer, and the Cu plating layer in the lower layer region has a metal grain diameter smaller than that of the Cu plating layer located in the upper layer region.Type: GrantFiled: March 18, 2021Date of Patent: January 17, 2023Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Satoshi Muramatsu, Ken Tominaga
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Publication number: 20220413417Abstract: An imaging system includes a developing chamber, a first conveyance path, a second conveyance path, a first air passage and a second air passage. A developing roller located in the developing chamber carries a developer to a developing region where the developing roller is closest to an image carrier. A first stirring-conveying portion is located in the first conveyance path adjacent the developing roller to supply the developer to the developing roller. A second stirring-conveying portion is located in the second conveyance path adjacent the first conveyance path to circulate the developer between the second conveyance path and the first conveyance path. The first air passage has an inlet coupled to the developing chamber and an outlet coupled to the second conveyance path, and the second air passage has an inlet coupled to the second conveyance path and an outlet coupled to the developing chamber.Type: ApplicationFiled: October 19, 2020Publication date: December 29, 2022Inventor: Satoshi MURAMATSU
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Patent number: 11482378Abstract: A three-terminal multilayer ceramic capacitor includes a capacitor including a ceramic layer, first and second internal electrodes, first and second end surface electrodes, and first and second side surface electrodes, and has a lengthwise dimension of about 1300 ?m or more and about 1500 ?m or less, a widthwise dimension of about 1000 ?m or more and about 1200 ?m or less, a heightwise dimension of about 570 ?m or more and about 680 ?m or less, and a capacitance of about 12 ?F or more and about 32 ?F or less. The first and second end surface electrodes, and the first and second side surface electrodes include a Ni underlying electrode layer and at least one plating electrode layer. The first and second end surface electrodes have a thickness of about 0.73% or more and about 3.00% or less relative to the lengthwise dimension.Type: GrantFiled: February 12, 2020Date of Patent: October 25, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Kosuke Onishi, Satoshi Muramatsu, Taisuke Kanzaki
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Patent number: 11393626Abstract: A multilayer ceramic capacitor includes a capacitive element including a stack of ceramic layers and internal electrodes, and external electrodes on a surface of the capacitive element. Each of the external electrodes includes a base electrode layer on the surface of the capacitive element and a Cu-plated electrode layer on a surface of the base electrode layer and including an edge portion facing the surface of the capacitive element. Sn is provided between the edge portion of the Cu-plated electrode layer and the surface of the capacitive element. On a surface of the Cu-plated electrode layer, at least one second plated electrode layer including an edge portion facing the surface of the capacitive element is provided.Type: GrantFiled: March 26, 2020Date of Patent: July 19, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Kosuke Onishi, Satoshi Muramatsu, Taisuke Kanzaki
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Publication number: 20220208459Abstract: A multilayer ceramic capacitor includes a multilayer body including layered ceramic layers and internal electrode layers, and an external electrode on a side surface of the multilayer body and connected to the internal electrode layers. A recess is provided in a surface of the external electrode on one side of opposing main surfaces of the multilayer ceramic capacitor.Type: ApplicationFiled: November 22, 2021Publication date: June 30, 2022Inventor: Satoshi MURAMATSU
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Publication number: 20220165503Abstract: A multilayer ceramic capacitor includes a stacked body and external electrodes. The stacked body includes stacked dielectric layers and internal electrodes. The external electrodes are disposed on lateral surfaces of the stacked body and are connected to the internal electrodes. The dielectric layers include outer layer portions and an effective layer portion. Each outer layer portion is adjacent to a corresponding main surface of the stacked body. Each outer layer portion is a dielectric layer located between a corresponding main surface and an internal electrode closest to the main surface. A ratio of a dimension of the effective layer portion in a stacking direction to a dimension of the stacked body in the stacking direction is not less than about 53% and not more than about 83%.Type: ApplicationFiled: February 7, 2022Publication date: May 26, 2022Inventor: Satoshi MURAMATSU
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Publication number: 20220130610Abstract: A multilayer ceramic capacitor includes a stacked body and external electrodes. The stacked body includes stacked dielectric layers and internal electrodes. The external electrodes are disposed on lateral surfaces of the stacked body and are connected to the internal electrodes. A ratio of min to max is not less than about 36% and not more than about 90%, where A1, A2, A3, and A4 respectively denote the surface areas of first, second, third, and fourth external electrodes that are located on the first or second main surface of the stacked body.Type: ApplicationFiled: January 5, 2022Publication date: April 28, 2022Inventor: Satoshi MURAMATSU
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Patent number: 11315734Abstract: A multilayer ceramic capacitor includes a capacitive element including ceramic layers and internal electrodes, and external electrodes on the capacitive element. The external electrodes include a Ni underlying electrode layer mainly made of Ni, a Cu plating electrode layer, and at least one second plating electrode layer. The Cu plating electrode layer includes a Ni diffused Cu plating electrode layer on a side closer to the Ni underlying electrode layer and including Ni diffused therein and a non-Ni diffused Cu plating electrode layer on a side closer to the second plating electrode layer and not including Ni diffused therein. The Cu plating electrode layer has a thickness of about 3 ?m or more and about 12 ?m or less and the non-Ni diffused Cu plating electrode layer has a thickness of about 0.5 ?m or more.Type: GrantFiled: February 12, 2020Date of Patent: April 26, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Taisuke Kanzaki, Satoshi Muramatsu, Kosuke Onishi
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Patent number: 11282647Abstract: A multilayer ceramic capacitor includes a stacked body and external electrodes. The stacked body includes stacked dielectric layers and internal electrodes. The external electrodes are disposed on lateral surfaces of the stacked body and are connected to the internal electrodes. The dielectric layers include outer layer portions and an effective layer portion. Each outer layer portion is adjacent to a corresponding main surface of the stacked body. Each outer layer portion is a dielectric layer located between a corresponding main surface and an internal electrode closest to the main surface. A ratio of a dimension of the effective layer portion in a stacking direction to a dimension of the stacked body in the stacking direction is not less than about 53% and not more than about 83%.Type: GrantFiled: January 21, 2020Date of Patent: March 22, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Satoshi Muramatsu
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Patent number: 11274667Abstract: A pump device includes: a drive shaft; a pump element; a pump housing including; a pump element receiving space, first and second bearing receiving spaces, a suction passage, a discharge passage, a return passage, and a seal receiving space, a first bearing including a first lubrication groove, received within the first bearing receiving space, and supporting the drive shaft; a second bearing which includes a second lubrication groove having a sectional area that is perpendicular to the rotation axis, and that is greater than a sectional area of the first bearing that is perpendicular to the rotation axis, which is received within the second bearing receiving space, and which supports the drive shaft; and a seal member provided within the seal receiving space, and arranged to seal between the drive shaft and the pump housing.Type: GrantFiled: August 22, 2018Date of Patent: March 15, 2022Assignee: Hitachi Astemo, Ltd.Inventors: Tomohiko Nakazono, Yukio Uchida, Satoshi Muramatsu
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Patent number: 11250991Abstract: A multilayer ceramic capacitor includes a stacked body and external electrodes. The stacked body includes stacked dielectric layers and internal electrodes. The external electrodes are disposed on lateral surfaces of the stacked body and are connected to the internal electrodes. A ratio of min to max is not less than about 36% and not more than about 90%, where A1, A2, A3, and A4 respectively denote the surface areas of first, second, third, and fourth external electrodes that are located on the first or second main surface of the stacked body.Type: GrantFiled: January 21, 2020Date of Patent: February 15, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventor: Satoshi Muramatsu
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Publication number: 20220026848Abstract: An imaging system includes a rotatable image carrier; a rotatable developer carrier, a storage container, and an air flow generator. The developer carrier transfers toner to the image carrier at a developing region located between the image carrier and the developer carrier. The storage container stores the developer carrier. The air flow generator is separated from the storage container by a gap, and rotates in a rotational direction that is opposite to a rotational direction of the developer carrier, to channel an air flow through the gap when the air flow generator rotates.Type: ApplicationFiled: November 15, 2019Publication date: January 27, 2022Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Satoshi MURAMATSU, Shinichiro SUZUKAWA, Tadao MORI
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Publication number: 20210324854Abstract: In a variable displacement vane pump, a cam profile of a cam ring includes a deviation region deviating from a perfect-circle cam profile outwardly in a radial direction regarding a rotational axis of a driving shaft in an intake region.Type: ApplicationFiled: July 29, 2019Publication date: October 21, 2021Applicant: Hitachi Astemo, Ltd.Inventors: Jun SOEDA, Satoshi MURAMATSU
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Publication number: 20210327649Abstract: A multilayer ceramic capacitor includes an external electrode including an underlying electrode layer, a lower plating layer on the underlying electrode layer at a first end surface and a second end surface, and an upper plating layer on the lower plating layer. The underlying electrode layer is a thin film electrode including at least one selected from Ni, Cr, Cu, and Ti. The lower plating layer is a Cu plating layer including a lower layer region located closer to the multilayer body and an upper layer region located between the lower layer region and the upper plating layer, and the Cu plating layer in the lower layer region has a metal grain diameter smaller than that of the Cu plating layer located in the upper layer region.Type: ApplicationFiled: March 18, 2021Publication date: October 21, 2021Inventors: Satoshi MURAMATSU, Ken TOMINAGA
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Publication number: 20210241976Abstract: A multilayer ceramic capacitor has a relationship of about 10°??1?about 50° and a relationship of about 10°??2?about 50°, where ?1 denotes an angle between a first end surface and a perpendicular extending from a side of a first main surface at a point of intersection of the first main surface and the first end surface, and ?2 denotes an angle between a second end surface and a perpendicular extending from a side of the first main surface at a point of intersection of the first main surface and the second end surface.Type: ApplicationFiled: December 18, 2020Publication date: August 5, 2021Inventors: Suguru NAKANO, Risa HOJO, Akira TANAKA, Toru NISHIKAWA, Satoshi MURAMATSU
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Patent number: 11081277Abstract: An electronic component includes a multilayer body including inner electrodes and dielectric layers alternately stacked, and an outer electrode electrically connected to the inner electrodes. The multilayer body includes first and second main surfaces opposite to each other in a stacking direction, first and second side surfaces opposite to each other in a width direction, and first and second end surfaces opposite to each other in a length direction. The outer electrode includes first outer electrodes disposed on the first and second end surfaces, and at least one second outer electrode disposed on at least one of the first and second side surfaces. The at least one second outer electrode is directly connected to the inner electrodes at positions spaced away from the at least one of the first or second side surface toward the inside of the multilayer body.Type: GrantFiled: October 7, 2019Date of Patent: August 3, 2021Assignee: Murata Manufacturing Co., Ltd.Inventors: Satoshi Muramatsu, Masatoshi Yanagihara, Akitaka Doi