Patents by Inventor Yukihiro Konishi
Yukihiro Konishi 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: 20240131553Abstract: A liquid application apparatus includes an applicator, a maintenance device, a conveyor, a first conveyance path, and a second conveyance path. The applicator applies a liquid to an object. The maintenance device maintains an applying condition of the liquid by the applicator. The conveyor conveys the object and the maintenance device. The object is to be conveyed along the first conveyance path. The maintenance device is to be conveyed along the second conveyance path. The applicator includes a nozzle surface on which a plurality of nozzles to discharge the liquid is formed. The maintenance device includes a wiper to wipe the nozzle surface. The first conveyance path overlaps with the second conveyance path at least at a portion at which the first conveyance path passes by the applicator.Type: ApplicationFiled: October 15, 2023Publication date: April 25, 2024Applicant: Ricoh Company, Ltd.Inventors: Yohsuke Konishi, Takayuki Niihara, Takashi Fujita, Yukihiro Wakabayashi
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Patent number: 11744156Abstract: A multilayer piezoelectric element includes a ceramic body formed by a piezoelectric ceramic, and having first and second end face facing a longitudinal direction, first and second principal faces facing a thickness direction perpendicular to the longitudinal direction. A pair of external electrodes cover the first and second end faces, extend from the first and second end faces onto the first principal face via ridge parts connecting the end faces with the principal faces, and project in the thickness direction on the first principal face. Multiple internal electrodes are stacked inside the ceramic body and are connected alternately to the pair of external electrodes along the thickness direction. A surface electrode is provided on at least one of the first and second principal faces, and connected to the external electrode different from the one to which the internal electrode adjacent in the thickness direction is connected.Type: GrantFiled: July 30, 2018Date of Patent: August 29, 2023Assignee: TAIYO YUDEN CO., LTD.Inventors: Hiroshi Hamada, Hiroyuki Shimizu, Sumiaki Kishimoto, Yukihiro Matsui, Shigeo Ishii, Tomohiro Harada, Yukihiro Konishi
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Patent number: 11581482Abstract: A piezoelectric ceramic, which does not contain lead as a constituent element, is characterized in that: its primary component is a perovskite compound expressed by the composition formula (Bi0.5?x/2Na0.5?x/2Bax)(Ti1?yMny)O3 (where 0.01?x?0.25, 0.001?y?0.020); and the coefficient of variation (CV) in grain size among the grains contained therein is 35 percent or lower. The piezoelectric ceramic presents an improved dielectric loss tangent tan ?.Type: GrantFiled: February 25, 2020Date of Patent: February 14, 2023Assignee: TAIYO YUDEN CO., LTD.Inventors: Yuuhei Ueyama, Tomohiro Harada, Hiroyuki Shimizu, Sumiaki Kishimoto, Yukihiro Konishi
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Patent number: 11557433Abstract: A multilayer ceramic capacitor includes an element body of roughly rectangular solid shape which is constituted by dielectric layers alternately stacked with internal electrode layers having different polarities, with a pair of cover layers formed on it to cover the top and bottom faces in the direction of lamination of the foregoing, and which has a pair of principal faces, a pair of end faces, and a pair of side faces, wherein external electrodes are formed on the pair of end faces and at least one of the pair of principal faces of the element body, and Tt representing the thickness of the external electrode and Tc representing the thickness of the cover layer satisfy the relationship of 1/30?Tt/Tc?4/5, and the thickness of the cover layers, or Tc, is 10 ?m or more but 30 ?m or less.Type: GrantFiled: April 9, 2021Date of Patent: January 17, 2023Assignee: TAIYO YUDEN CO., LTD.Inventors: Shohei Kitamura, Yukihiro Konishi, Kotaro Mizuno, Yoichi Kato, Yusuke Kowase, Toru Makino, Yoshinori Tanaka
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Patent number: 11437560Abstract: In an embodiment, a multilayer piezoelectric element includes a multilayer piezoelectric body and multiple internal electrodes. The multilayer piezoelectric body has a pair of principal faces in a first-axis direction, a pair of end faces in a second-axis direction crossing at right angles with the first-axis direction and defining the longitudinal direction, and a pair of side faces in a third-axis direction crossing at right angles with the first-axis direction and second-axis direction. The multiple internal electrodes are placed inside the multilayer piezoelectric body and stacked in the first-axis direction. Among the multiple internal electrodes, a center internal electrode placed at the center part of the multilayer piezoelectric body is such that its first cross-sectional shape, as viewed from the third-axis direction, has undulations greater than the undulations of the second cross-sectional shape of the center internal electrode as viewed from the second-axis direction.Type: GrantFiled: June 18, 2018Date of Patent: September 6, 2022Assignee: TAIYO YUDEN CO., LTD.Inventors: Sumiaki Kishimoto, Hiroyuki Shimizu, Tomohiro Harada, Yukihiro Konishi
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Patent number: 11430940Abstract: A multilayer piezoelectric element includes a ceramic base body, a pair of external electrodes, multiple internal electrodes, and surface electrodes. The pair of external electrodes cover a pair of end faces and extend from the pair of end faces along a pair of principal faces and a pair of side faces. The multiple internal electrodes are stacked inside the ceramic base body along the thickness direction, and are connected alternately to one or the other of the pair of external electrodes along the thickness direction. The surface electrodes extend from the pair of external electrodes along the pair of principal faces, and are each divided in the longitudinal direction at a position near, of the pair of external electrodes, the external electrode to which the internal electrode adjacent to the principal face is connected.Type: GrantFiled: July 12, 2018Date of Patent: August 30, 2022Assignee: TAIYO YUDEN CO., LTD.Inventors: Sumiaki Kishimoto, Hiroshi Hamada, Hiroyuki Shimizu, Yukihiro Matsui, Tomohiro Harada, Yukihiro Konishi
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Patent number: 11362261Abstract: A multi-layer piezoelectric ceramic component includes: a piezoelectric ceramic body having a cuboid shape having upper and lower surfaces facing in a thickness direction, first and second end surfaces facing in a length direction, and a pair of side surfaces facing in a width direction; first internal electrodes formed in the piezoelectric ceramic body and drawn to the first end surface; second internal electrodes formed in the piezoelectric ceramic body and drawn to the second end surface; a first terminal electrode formed on the first end surface; and a second terminal electrode formed on the second end surface, the first and second internal electrodes each having a width equal to a distance between the pair of side surfaces, at least one of the pair of side surfaces including a groove extending in non-parallel with the length direction.Type: GrantFiled: January 25, 2019Date of Patent: June 14, 2022Assignee: TAIYO YUDEN CO., LTDInventors: Takayuki Goto, Hiroyuki Shimizu, Sumiaki Kishimoto, Yukihiro Konishi
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Patent number: 11309481Abstract: A multi-layer piezoelectric ceramic component includes: a piezoelectric ceramic body having a cuboid shape, having upper and lower surfaces facing in a thickness direction, first and second end surfaces facing in a length direction, and a pair of side surfaces facing in a width direction, and including first and second regions; first internal electrodes in the first region; second internal electrodes in the second region; third internal electrodes in the first and second regions; a first terminal electrode formed on the first end surface and electrically connected to the first internal electrodes; a second terminal electrode formed on the first end surface and electrically connected to the second internal electrodes; and a third terminal electrode formed on the second end surface and electrically connected to the third internal electrodes, the first, second, and third internal electrodes each having a width equal to a distance between the pair of side surfaces.Type: GrantFiled: January 25, 2019Date of Patent: April 19, 2022Assignee: TAIYO YUDEN CO., LTDInventors: Sumiaki Kishimoto, Hiroyuki Shimizu, Tomohiro Harada, Takayuki Goto, Yukihiro Konishi
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Patent number: 11296272Abstract: A multilayer piezoelectric element includes a ceramic base body, a pair of external electrodes, multiple internal electrodes, and surface electrodes. The ceramic base body is formed by a piezoelectric ceramic. The pair of external electrodes cover a pair of end faces. The multiple internal electrodes are stacked inside the ceramic base body along a thickness direction crossing at right angles with a longitudinal direction, and connected alternately to the pair of external electrodes in the thickness direction. The surface electrodes are provided on a pair of principal faces, respectively, and are each connected to the external electrode different from the one to which the internal electrode adjacent in the thickness direction is connected. The pair of external electrodes have a higher porosity than the surface electrodes.Type: GrantFiled: July 18, 2018Date of Patent: April 5, 2022Assignee: TAIYO YUDEN CO., LTD.Inventors: Sumiaki Kishimoto, Hiroyuki Shimizu, Tomohiro Harada, Yukihiro Konishi
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Patent number: 11145800Abstract: A multilayer pyroelectric element includes: a laminate body constituted by multiple pyroelectric body layers laminated in their thickness direction; internal electrode layers which are provided between the pyroelectric body layers, and one ends of which extend to the outer peripheries of the adjoining pyroelectric body layers; and external electrodes that connect the alternate internal electrode layers together at the one ends, wherein “x1>x3 AND x2>x3” are satisfied wherein x1 is a distance between a pair of first faces crossing at right angles with the laminating direction of the pyroelectric body layers, x2 is a distance between a pair of second faces crossing at right angles with the first faces and running parallel with the laminating direction of the pyroelectric body layers, and x3 a is a distance between a pair of third faces crossing at right angles with the first faces and also with the second faces.Type: GrantFiled: July 24, 2018Date of Patent: October 12, 2021Assignee: TAIYO YUDEN., CO. LTD.Inventors: Yuuhei Ueyama, Hiroyuki Shimizu, Yukihiro Konishi
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Publication number: 20210233711Abstract: A multilayer ceramic capacitor includes an element body of roughly rectangular solid shape which is constituted by dielectric layers alternately stacked with internal electrode layers having different polarities, with a pair of cover layers formed on it to cover the top and bottom faces in the direction of lamination of the foregoing, and which has a pair of principal faces, a pair of end faces, and a pair of side faces, wherein external electrodes are formed on the pair of end faces and at least one of the pair of principal faces of the element body, and Tt representing the thickness of the external electrode and Tc representing the thickness of the cover layer satisfy the relationship of 1/30?Tt/Tc?4/5, and the thickness of the cover layers, or Tc, is 10 ?m or more but 30 ?m or less.Type: ApplicationFiled: April 9, 2021Publication date: July 29, 2021Inventors: Shohei KITAMURA, Yukihiro KONISHI, Kotaro MIZUNO, Yoichi KATO, Yusuke KOWASE, Toru MAKINO, Yoshinori TANAKA
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Patent number: 11017949Abstract: A multi-layer ceramic capacitor according to an embodiment of the present invention includes a multi-layer, side margins and offset sections. The multi-layer includes internal electrodes and dielectric layers alternately laminated. The side margins are configured of a dielectric and disposed to cover side faces of the multi-layer. The offset sections are made with amorphous areas or gap areas. The offset sections are formed between the internal electrodes and the side margins such that ends at side faces of the internal electrodes are offset from the side faces to an inward direction of the multi-layer.Type: GrantFiled: May 27, 2016Date of Patent: May 25, 2021Assignee: Taiyo Yuden Co., Ltd.Inventors: Yoichi Kato, Kotaro Mizuno, Yukihiro Konishi, Yasunari Kato, Yosuke Sato, Hidenori Wakayanagi, Joji Kobayashi, Toshimitsu Kogure
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Patent number: 11004607Abstract: A method for manufacturing a multilayer ceramic capacitor includes: producing a plurality of dielectric green sheets; producing therefrom a plurality of internal electrode-printed green sheets; producing therefrom a plurality of individually cut unsintered laminates by stacking some of the plurality of dielectric green sheets, as cover layers, and the plurality of internal electrode-printed green sheets together; producing therefrom element body precursors by applying a ceramic paste to side faces of the unsintered laminates for forming side margins thereon, wherein an application thickness of the ceramic paste is adjusted in a manner such that a thickness of the side margins is greater than a thickness of the cover layers in the final product; producing therefrom element bodies by sintering; and forming external electrodes on at least one of principal faces and on both end faces of the element bodies.Type: GrantFiled: February 23, 2018Date of Patent: May 11, 2021Assignee: TAIYO YUDEN CO., LTD.Inventors: Shohei Kitamura, Yukihiro Konishi, Kotaro Mizuno, Yoichi Kato, Yusuke Kowase, Toru Makino, Yoshinori Tanaka
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Publication number: 20200287124Abstract: A piezoelectric ceramic, which does not contain lead as a constituent element, is characterized in that: its primary component is a perovskite compound expressed by the composition formula (Bi0.5?x/2Na0.5?x/2Bax)(Ti1?yMny)O3 (where 0.01?x?0.25, 0.001?y?0.020); and the coefficient of variation (CV) in grain size among the grains contained therein is 35 percent or lower. The piezoelectric ceramic presents an improved dielectric loss tangent tan ?.Type: ApplicationFiled: February 25, 2020Publication date: September 10, 2020Inventors: Yuuhei UEYAMA, Tomohiro HARADA, Hiroyuki SHIMIZU, Sumiaki KISHIMOTO, Yukihiro KONISHI
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Publication number: 20200227616Abstract: A multilayer pyroelectric element includes: a laminate body constituted by multiple pyroelectric body layers laminated in their thickness direction; internal electrode layers which are provided between the pyroelectric body layers, and one ends of which extend to the outer peripheries of the adjoining pyroelectric body layers; and external electrodes that connect the alternate internal electrode layers together at the one ends, wherein “x1>x3 AND x2>x3” are satisfied wherein x1 is a distance between a pair of first faces crossing at right angles with the laminating direction of the pyroelectric body layers, x2 is a distance between a pair of second faces crossing at right angles with the first faces and running parallel with the laminating direction of the pyroelectric body layers, and x3a is a distance between a pair of third faces crossing at right angles with the first faces and also with the second faces.Type: ApplicationFiled: July 24, 2018Publication date: July 16, 2020Inventors: Yuuhei UEYAMA, Hiroyuki SHIMIZU, Yukihiro KONISHI
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Publication number: 20200144645Abstract: A fuel cell includes: a solid oxide electrolyte layer having oxygen ion conductivity; a first electrode layer that is provided on a first face of the solid oxide electrolyte layer; and a second electrode layer that is provided on a second face of the solid oxide electrolyte layer, wherein a main component of a material having oxygen ion conductivity and a main component of a material having electron conductivity are common with each other between the first electrode layer and the second electrode layer.Type: ApplicationFiled: October 18, 2019Publication date: May 7, 2020Inventors: Xinyu LI, Chie KAWAMURA, Yukihiro KONISHI
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Patent number: 10515764Abstract: A multilayer ceramic capacitor includes an element body of roughly rectangular solid shape which is constituted by dielectric layers alternately stacked with internal electrode layers having different polarities and which has a pair of principle faces, a pair of end faces, and a pair of side faces, wherein the multilayer ceramic capacitor is such that: external electrodes are formed on the pair of end faces and one principle face of the element body; and on a cross section taken in parallel with one end face of the multilayer ceramic capacitor near the end face, the ratio of area A constituted by the internal electrode layers connected to the external electrode on this end face side and the dielectric layers present between the internal electrode layers, and area B covering the part of the section excluding the external electrodes, A/B, is 0.92 or more.Type: GrantFiled: November 8, 2018Date of Patent: December 24, 2019Assignee: TAIYO YUDEN CO., LTD.Inventors: Kotaro Mizuno, Yukihiro Konishi, Shohei Kitamura, Yoichi Kato, Yusuke Kowase, Toru Makino, Yoshinori Tanaka
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Patent number: 10490352Abstract: A multi-layer ceramic capacitor includes a multi-layer unit, side margins, and bonding units. The multi-layer unit includes ceramic layers laminated in a first direction and internal electrodes disposed between the ceramic layers. The side margins cover the multi-layer unit from a second direction orthogonal to the first direction. The bonding units are each disposed between the multi-layer unit and each of the side margins and have higher silicon content than the ceramic layers and the side margins.Type: GrantFiled: August 21, 2018Date of Patent: November 26, 2019Assignee: TAIYO YUDEN CO., LTD.Inventors: Yoichi Kato, Kotaro Mizuno, Yukihiro Konishi
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Publication number: 20190237656Abstract: A multi-layer piezoelectric ceramic component includes: a piezoelectric ceramic body having a cuboid shape having upper and lower surfaces facing in a thickness direction, first and second end surfaces facing in a length direction, and a pair of side surfaces facing in a width direction; first internal electrodes formed in the piezoelectric ceramic body and drawn to the first end surface; second internal electrodes formed in the piezoelectric ceramic body and drawn to the second end surface; a first terminal electrode formed on the first end surface; and a second terminal electrode formed on the second end surface, the first and second internal electrodes each having a width equal to a distance between the pair of side surfaces, at least one of the pair of side surfaces including a groove extending in non-parallel with the length direction.Type: ApplicationFiled: January 25, 2019Publication date: August 1, 2019Inventors: Takayuki GOTO, Hiroyuki SHIMIZU, Sumiaki KISHIMOTO, Yukihiro KONISHI
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Publication number: 20190237653Abstract: A multi-layer piezoelectric ceramic component includes: a piezoelectric ceramic body having a cuboid shape, having upper and lower surfaces facing in a thickness direction, first and second end surfaces facing in a length direction, and a pair of side surfaces facing in a width direction, and including first and second regions; first internal electrodes in the first region; second internal electrodes in the second region; third internal electrodes in the first and second regions; a first terminal electrode formed on the first end surface and electrically connected to the first internal electrodes; a second terminal electrode formed on the first end surface and electrically connected to the second internal electrodes; and a third terminal electrode formed on the second end surface and electrically connected to the third internal electrodes, the first, second, and third internal electrodes each having a width equal to a distance between the pair of side surfaces.Type: ApplicationFiled: January 25, 2019Publication date: August 1, 2019Inventors: Sumiaki KISHIMOTO, Hiroyuki SHIMIZU, Tomohiro HARADA, Takayuki GOTO, Yukihiro KONISHI