Patents by Inventor Kenya Tamaki
Kenya Tamaki 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: 20240087812Abstract: An electronic component includes a component body, a metal terminal, and a bonding material. The component body includes an element body and an external electrode. The metal terminal includes a first main surface and a second main surface, and a side surface. The bonding material electrically and physically connects the external electrode and the metal terminal. The metal terminal includes a first metal layer including the first main surface, a second metal layer including the second main surface, and a terminal body including the side surface. The terminal body is exposed at the side surface, and the first metal layer and the second metal layer are separated from each other on the side surface. Each of the first metal layer and the second metal layer includes a Ni plated layer. The terminal body includes Cu. The bonding material includes solder.Type: ApplicationFiled: July 26, 2023Publication date: March 14, 2024Applicant: TDK CORPORATIONInventors: Toshihiro IGUCHI, Hisashi KOBAYASHI, Norihisa ANDO, Kenya TAMAKI
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Patent number: 11915876Abstract: A ceramic electronic device comprises an element body including a ceramic layer and an internal electrode layer, and an external electrode electrically connected to at least one end of the internal electrode layer. The element body includes an interface part at least at a part of a boundary between the external electrode and the ceramic layer. The interface part includes an oxide containing aluminium and an oxide containing boron.Type: GrantFiled: July 6, 2022Date of Patent: February 27, 2024Assignee: TDK CORPORATIONInventors: Toshihiro Iguchi, Norihisa Ando, Kenya Tamaki, Hisashi Kobayashi
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Publication number: 20230411077Abstract: The electronic device includes: a case including a recessed portion and an opening edge portion of the recessed portion; a ceramic element arranged in the recessed portion, having a first main surface and a second main surface facing each other, and including a first electrode portion formed on the first main surface and a second electrode portion formed on the second main surface; a first metal terminal including a first mounting portion, arranged in the opening edge portion and approximately horizontal with respect to the first main surface and the second main surface, and a first electrode connection portion connected to the first electrode portion; and a second metal terminal including a second mounting portion, arranged in the opening edge portion and approximately horizontal with respect to the first main surface and the second main surface, and a second electrode connection portion connected to the second electrode portion.Type: ApplicationFiled: June 8, 2023Publication date: December 21, 2023Applicant: TDK CORPORATIONInventors: Akihiro MASUDA, Shinya ITO, Norihisa ANDO, Hideki KANEKO, Ken ABURAKAWA, Kenya TAMAKI, Akitoshi YOSHII
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Publication number: 20230402228Abstract: An electronic device includes: a ceramic element including a first electrode portion and a second electrode portion; a first metal terminal including a first external connection portion and a first electrode connection portion connected to the first electrode portion through solder; and a second metal terminal including a second external connection portion and a second electrode connection portion connected to the second electrode portion through solder. The first electrode connection portion includes a first solder stopper formed by undulation of at least a part of a facing surface of the first electrode connection portion facing the first electrode portion to control a range of an adhesion region of solder to the first electrode portion. The second electrode connection portion includes a second solder stopper that is formed by undulation of at least a part of a facing surface of the second electrode connection portion facing the second electrode portion.Type: ApplicationFiled: June 8, 2023Publication date: December 14, 2023Applicant: TDK CORPORATIONInventors: Akihiro MASUDA, Takaaki SATO, Shinya ITO, Norihisa ANDO, Hideki KANEKO, Ken ABURAKAWA, Kenya TAMAKI, Akitoshi YOSHII
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Publication number: 20230386748Abstract: A multilayer ceramic electronic device includes an element body including a ceramic layer and an internal electrode layer, and an external electrode formed on an outer surface of the element body and electrically connected to part of the internal electrode layer. The external electrode includes a first layer in direct contact with the element body and containing a first insulator phase and first metal phases, and a second layer in contact with an outer surface of the first layer and containing a second insulator phase and second metal phases. An area ratio of the first metal phases in the first layer is more than 8% and 30% or less. An area ratio of the second metal phases in the second layer is larger than the area ratio of the first metal phases in the first layer. The first metal phases have an average aspect ratio of 3.5 or more.Type: ApplicationFiled: May 26, 2023Publication date: November 30, 2023Applicant: TDK CORPORATIONInventors: Toshihiro IGUCHI, Shinya SAITO, Ayako SATO, Yasuo WATANABE, Takehisa TAMURA, Kenya TAMAKI
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Patent number: 11798743Abstract: An electronic device includes chip components, a case, conductive terminals, and a fuse. The chip components each include a terminal electrode. The case includes accommodation recesses for accommodating the chip components. The conductive terminals are fixed to the case and respectively connected to the terminal electrodes of the chip components. The fuse electrically connects the chip components.Type: GrantFiled: April 13, 2021Date of Patent: October 24, 2023Assignee: TDK CORPORATIONInventors: Shinya Saito, Kenya Tamaki, Norihisa Ando, Shinya Ito, Akihiro Masuda, Kosuke Yazawa, Yoshiki Satou, Katsumi Kobayashi, Toshihiro Iguchi
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Publication number: 20230268127Abstract: An electronic component including a case including an accommodation part having an opening; a ceramic element arranged in the accommodation part; a metal terminal including an electrode connecting part connecting to the ceramic element, a mounting part exposed out of the accommodation part, and a terminal arm part connecting the electrode connecting part and the mounting part; a case cover including a closing plate part covering the opening, and a case cover lateral side portion extending in a depth direction of the accommodation part from a circumference of the closing plate part and at least partially facing against an accommodation side wall of the accommodation part; and a mold resin filling the accommodation part.Type: ApplicationFiled: January 13, 2023Publication date: August 24, 2023Applicant: TDK CORPORATIONInventors: Takaaki SATO, Akihiro MASUDA, Shinya ITO, Norihisa ANDO, Hideki KANEKO, Ken ABURAKAWA, Kenya TAMAKI, Akitoshi YOSHII
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Publication number: 20230268128Abstract: An electronic component having a case including an accommodation part having an opening; a ceramic element in the accommodation part with first and second main faces facing each other, a first and second electrode formed to the first and second main face, respectively; a first metal terminal including a first electrode connecting part connecting to the first electrode, a first mounting part exposed out of the accommodation part through the opening, and a first terminal arm part connecting the first electrode connecting part and the first mounting part; a second metal terminal including a second electrode connecting part connecting to the second electrode, a second mounting part exposed out of the accommodation part through the opening, and a second terminal arm part connecting the second electrode connecting part and the second mounting part; and an insulation member between the first electrode and the second terminal arm part.Type: ApplicationFiled: January 13, 2023Publication date: August 24, 2023Applicant: TDK CORPORATIONInventors: Akihiro MASUDA, Shinya ITO, Norihisa Ando, Hideki Kaneko, Ken Aburakawa, Kenya Tamaki, Akitoshi Yoshii
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Patent number: 11646163Abstract: An electronic device includes first and second capacitors, a case, a coil, and first to fourth conductive terminals. The first capacitor includes first and second terminal electrodes. The second capacitor includes third and fourth terminal electrodes. The case includes an accommodation recess for accommodating the first and second capacitors. The coil is separated from the first and second capacitors by a part of the case and disposed outside the accommodation recess. The first terminal is connected to the first electrode and partly disposed on a mounting-side bottom surface of the case. The second terminal is connected to one end of the coil and the second electrode and partly disposed on the surface. The third terminal is connected to the other end of the coil and the third electrode and partly disposed on the surface. The fourth terminal is connected to the fourth electrode and partly disposed on the surface.Type: GrantFiled: April 13, 2021Date of Patent: May 9, 2023Assignee: TDK CORPORATIONInventors: Akihiro Masuda, Shinya Ito, Norihisa Ando, Kosuke Yazawa, Yoshiki Satou, Katsumi Kobayashi, Toshihiro Iguchi, Kenya Tamaki, Shinya Saito
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Publication number: 20230073043Abstract: An electronic component with a metal terminal includes an electronic component having an element body, and external electrodes respectively provided on end surfaces facing each other in an X direction in the element body; and plate-shaped metal terminals having joint portions joined to the external electrodes, and leg portions provided to protrude beyond the electronic component in a Z direction. The leg portion of the metal terminal has an extending part continuously extending in the Z direction from the joint portion, a first bent part bent from a tip of the extending part to the electronic component side at a first angle formed to be an acute angle with respect to the extending part, and a second bent part bent from a tip of the first bent part at a second angle larger than the first angle with respect to the extending part.Type: ApplicationFiled: August 31, 2022Publication date: March 9, 2023Applicant: TDK CORPORATIONInventors: Hisashi KOBAYASHI, Norihisa ANDO, Toshihiro IGUCHI, Kenya TAMAKI
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Publication number: 20230064506Abstract: An electronic device includes a case, a ceramic element, a first metal terminal, and a second metal terminal. The case includes a recess and a case lower surface facing opposite to its opening. The ceramic element is disposed in the recess and includes first and second main surfaces opposing to each other, a first electrode portion formed on the first main surface, and a second electrode portion formed on the second main surface. The first metal terminal includes a first mounting portion disposed on the case lower surface and being substantially parallel to the first and second main surfaces and a first electrode connection portion connected to the first electrode portion. The second metal terminal includes a second mounting portion disposed on the case lower surface and being substantially parallel to the first and second main surfaces and a second electrode connection portion connected to the second electrode portion.Type: ApplicationFiled: August 15, 2022Publication date: March 2, 2023Applicant: TDK CORPORATIONInventors: Akihiro MASUDA, Shinya ITO, Norihisa ANDO, Hideki KANEKO, Ken ABURAKAWA, Kenya TAMAKI, Akitoshi YOSHII
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Publication number: 20230061638Abstract: An electronic device includes a case, a ceramic element, a first metal terminal, and a second metal terminal. The case includes a recess and its opening edge. The ceramic element is disposed in the recess and includes a first main surface and a second main surface opposing to each other, a first electrode portion formed on the first main surface, and a second electrode portion formed on the second main surface. The first metal terminal includes a first mounting portion disposed on the opening edge and being substantially perpendicular to the first and second main surfaces and a first electrode connection portion connected to the first electrode portion. The second metal terminal includes a second mounting portion disposed on the opening edge and being substantially perpendicular to the first and second main surfaces and a second electrode connection portion connected to the second electrode portion.Type: ApplicationFiled: August 15, 2022Publication date: March 2, 2023Applicant: TDK CORPORATIONInventors: Akihiro MASUDA, Shinya ITO, Norihisa ANDO, Hideki KANEKO, Ken ABURAKAWA, Kenya TAMAKI, Akitoshi YOSHII
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Publication number: 20230034900Abstract: A ceramic electronic device comprises an element body including a ceramic layer and an internal electrode layer, and an external electrode electrically connected to at least one end of the internal electrode layer. The element body includes an interface part at least at a part of a boundary between the external electrode and the ceramic layer. The interface part includes an oxide containing aluminium and an oxide containing boron.Type: ApplicationFiled: July 6, 2022Publication date: February 2, 2023Applicant: TDK CORPORATIONInventors: Toshihiro IGUCHI, Norihisa ANDO, Kenya TAMAKI, Hisashi KOBAYASHI
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Patent number: 11443897Abstract: An electronic component includes an element body, an external electrode, and a metal terminal. In the metal terminal, a base includes a first surface and a second surface opposing each other, and a pair of third surfaces coupling the first surface and the second surface. A first metal layer is disposed on the first surface and connected to solder with which the external electrode and the metal terminal are connected together. A second metal layer is disposed on the second surface. A coating layer is disposed on each of the third surfaces. The first metal layer and the second metal layer each include an outermost layer containing Sn. Each of the coating layer includes an outermost layer lower in solder wettability than the respective outermost layers of the first metal layer and the second metal layer.Type: GrantFiled: April 29, 2021Date of Patent: September 13, 2022Assignee: TDK CORPORATIONInventors: Toshihiro Iguchi, Norihisa Ando, Kenya Tamaki, Kayou Matsunaga
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Patent number: 11430607Abstract: An electronic component according to the present invention is an electronic component including: a ceramic element body including an internal electrode; and an external electrode formed on an outer surface of the ceramic element body. The external electrode includes: a first electrode layer electrically connected to at least a part of the internal electrode; and a second electrode layer formed on an outside of the first electrode layer. The first electrode layer has a first conductor region containing copper, and the second electrode layer has a second conductor region including a matrix phase containing silver and palladium and copper particles dispersed in the matrix phase.Type: GrantFiled: May 17, 2021Date of Patent: August 30, 2022Assignee: TDK CORPORATIONInventors: Toshihiro Iguchi, Norihisa Ando, Kenya Tamaki, Kayou Matsunaga
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Publication number: 20210375547Abstract: An electronic device includes chip components, a case, conductive terminals, and a fuse. The chip components each include a terminal electrode. The case includes accommodation recesses for accommodating the chip components. The conductive terminals are fixed to the case and respectively connected to the terminal electrodes of the chip components. The fuse electrically connects the chip components.Type: ApplicationFiled: April 13, 2021Publication date: December 2, 2021Applicant: TDK CORPORATIONInventors: Shinya SAITO, Kenya TAMAKI, Norihisa ANDO, Shinya ITO, Akihiro MASUDA, Kosuke YAZAWA, Yoshiki SATOU, Katsumi KOBAYASHI, Toshihiro IGUCHI
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Publication number: 20210375553Abstract: An electronic device includes first and second capacitors, a case, a coil, and first to fourth conductive terminals. The first capacitor includes first and second terminal electrodes. The second capacitor includes third and fourth terminal electrodes. The case includes an accommodation recess for accommodating the first and second capacitors. The coil is separated from the first and second capacitors by a part of the case and disposed outside the accommodation recess. The first terminal is connected to the first electrode and partly disposed on a mounting-side bottom surface of the case. The second terminal is connected to one end of the coil and the second electrode and partly disposed on the surface. The third terminal is connected to the other end of the coil and the third electrode and partly disposed on the surface. The fourth terminal is connected to the fourth electrode and partly disposed on the surface.Type: ApplicationFiled: April 13, 2021Publication date: December 2, 2021Applicant: TDK CORPORATIONInventors: Akihiro MASUDA, Shinya ITO, Norihisa ANDO, Kosuke YAZAWA, Yoshiki SATOU, Katsumi KOBAYASHI, Toshihiro IGUCHI, Kenya TAMAKI, Shinya SAITO
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Publication number: 20210366654Abstract: An electronic component according to the present invention is an electronic component including: a ceramic element body including an internal electrode; and an external electrode formed on an outer surface of the ceramic element body. The external electrode includes: a first electrode layer electrically connected to at least a part of the internal electrode; and a second electrode layer formed on an outside of the first electrode layer. The first electrode layer has a first conductor region containing copper, and the second electrode layer has a second conductor region including a matrix phase containing silver and palladium and copper particles dispersed in the matrix phase.Type: ApplicationFiled: May 17, 2021Publication date: November 25, 2021Applicant: TDK CORPORATIONInventors: Toshihiro IGUCHI, Norihisa ANDO, Kenya TAMAKI, Kayou MATSUNAGA
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Publication number: 20210358690Abstract: An electronic component includes an element body, an external electrode, and a metal terminal. In the metal terminal, a base includes a first surface and a second surface opposing each other, and a pair of third surfaces coupling the first surface and the second surface. A first metal layer is disposed on the first surface and connected to solder with which the external electrode and the metal terminal are connected together. A second metal layer is disposed on the second surface. A coating layer is disposed on each of the third surfaces. The first metal layer and the second metal layer each include an outermost layer containing Sn. Each of the coating layer includes an outermost layer lower in solder wettability than the respective outermost layers of the first metal layer and the second metal layer.Type: ApplicationFiled: April 29, 2021Publication date: November 18, 2021Applicant: TDK CORPORATIONInventors: Toshihiro IGUCHI, Norihisa ANDO, Kenya TAMAKI, Kayou MATSUNAGA
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Patent number: 9842693Abstract: A multilayer ceramic capacitor includes an element body, a first terminal electrode, a second terminal electrode, and a plurality of internal electrodes. The plurality of internal electrodes include a plurality of first internal electrodes, a plurality of second internal electrodes, a plurality of third internal electrodes, and a plurality of fourth internal electrodes. The element body includes a plurality of first and second regions. The first regions are located between the first internal electrodes opposed with each other. The second regions are located between the first internal electrodes opposed to each other through the third internal electrodes, and between the second internal electrodes opposed to each other through the fourth internal electrodes. The first regions and the second regions are alternately located in the first direction.Type: GrantFiled: December 4, 2015Date of Patent: December 12, 2017Assignee: TDK CORPORATIONInventors: Masahiro Iwama, Kenya Tamaki, Fumiaki Satoh, Kenta Yamashita