Patents by Inventor Toshiyuki Anbo
Toshiyuki Anbo 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).
-
Publication number: 20220139609Abstract: A coil device including: a core containing magnetic particles and a resin component; a coil including a conductor having a coil shape; and a terminal electrode formed on a part of an outer surface of the core and electrically connected to an end of the conductor drawn from the coil. The terminal electrode includes a first electrode layer in contact with the end of the conductor and a second electrode layer located outside the first electrode layer. The first electrode layer and the second electrode layer both include conductive powder and resin, and a content of the resin in the second electrode layer is higher than a content of the resin in the first electrode layer.Type: ApplicationFiled: October 28, 2021Publication date: May 5, 2022Applicant: TDK CORPORATIONInventors: Kyosuke INUI, Yuichi OYANAGI, Toru TONOGAI, Toshiyuki ANBO
-
Publication number: 20210358683Abstract: An electronic component according to the present invention includes: a leadout electrode portion provided on an outer surface of an element main body; and a resin electrode layer formed at a part of the outer surface of the element main body and connected to the leadout electrode portion. The leadout electrode portion contains copper as a main component, and the resin electrode layer includes a conductor powder containing silver, and a resin. Further, a diffusion layer containing copper oxide and silver is formed at an interface between the leadout electrode portion and the resin electrode layer.Type: ApplicationFiled: May 14, 2021Publication date: November 18, 2021Applicant: TDK CORPORATIONInventors: Kyosuke INUI, Makoto MORITA, Takashi KUDO, Toshiyuki ANBO, Kyohei TONOYAMA, Fuyuki MIURA, Masanori SUGAI, Eietsu ABE, Toru TONOGAI, Yuichi OYANAGI
-
Patent number: 9236171Abstract: A coil component includes: an insulating resin layer provided between a first planar spiral conductor formed on a back surface of a first substrate and a second planer spiral conductor formed on a back surface of a second substrate; an upper core covering a third second planer spiral conductor formed on a front surface of the first substrate on which the insulating resin layer is formed; and a lower core covering a fourth planer spiral conductor formed on a front surface of the second substrate on which the insulating resin layer is formed. One of the upper and lower cores is formed of a metal-magnetic-powder-containing resin. The coil component includes connecting portions disposed respectively at center and outside portions of each of the first and second substrates so as to physically connect the upper and lower cores.Type: GrantFiled: October 14, 2011Date of Patent: January 12, 2016Assignee: TDK CorporationInventors: Tomokazu Ito, Hitoshi Ohkubo, Yoshihiro Maeda, Makoto Morita, Toshiyuki Anbo, Kyohei Tonoyama, Manabu Ohta
-
Publication number: 20130222101Abstract: A coil component includes: an insulating resin layer provided between a first planar spiral conductor formed on a back surface of a first substrate and a second planer spiral conductor formed on a back surface of a second substrate; an upper core covering a third second planer spiral conductor formed on a front surface of the first substrate on which the insulating resin layer is formed; and a lower core covering a fourth planer spiral conductor formed on a front surface of the second substrate on which the insulating resin layer is formed. One of the upper and lower cores is formed of a metal-magnetic-powder-containing resin. The coil component includes connecting portions disposed respectively at center and outside portions of each of the first and second substrates so as to physically connect the upper and lower cores.Type: ApplicationFiled: October 14, 2011Publication date: August 29, 2013Applicant: TDK CORPORATIONInventors: Tomokazu Ito, Hitoshi Ohkubo, Yoshihiro Maeda, Makoto Morita, Toshiyuki Anbo, Kyohei Tonoyama, Manabu Ohta
-
Patent number: 7173508Abstract: An inductor device including a device body having a plurality of insulating layers; a plurality of conductive coil pattern units formed inside the device body between insulating layers along a single planar direction, coil pattern units adjoining each other in the single plane being centro-symmetric patterns with respect to a center point of a boundary line between unit sections containing coil pattern units; and connection portions connecting upper and lower coil pattern units separated by the insulating layers to form a coil. It is possible to obtain an inductor device able to suppress the stack deviation without complicating the production process even if the device is made small in size.Type: GrantFiled: June 8, 2004Date of Patent: February 6, 2007Assignee: TDK CorporationInventors: Toshiyuki Anbo, Fumio Uchikoba
-
Patent number: 7113389Abstract: A multilayer inductor has a rectangular parallelepiped element body and its length in the lengthwise direction (L), length in the direction of height (H), and length in the direction of width (W) are L?0.6 mm, H?0.3 mm, and W?0.3 mm, respectively. Terminal electrodes are provided so as to cover the vertices of the element body and come round to the side face from the end faces on both sides. The radius of curvature R of the vertex of the terminal electrode is set to a value being 10% or more and 20% or less of H or W.Type: GrantFiled: June 10, 2005Date of Patent: September 26, 2006Assignee: TDK CorporationInventors: Michiru Ishifune, Yoji Tozawa, Toshiyuki Anbo, Hidekazu Sato, Shuumi Kumagai
-
Publication number: 20060007640Abstract: A multilayer inductor has a rectangular parallelepiped element body and its length in the lengthwise direction (L), length in the direction of height (H), and length in the direction of width (W) are L?0.6 mm, H?0.3 mm, and W?0.3 mm, respectively Terminal electrodes are provided so as to cover the vertices of the element body and come round to the side face from the end faces on both sides. The radius of curvature R of the vertex of the terminal electrode is set to a value being 10% or more and 20% or less of H or W.Type: ApplicationFiled: June 10, 2005Publication date: January 12, 2006Applicant: TDK CORPORATIONInventors: Michiru Ishifune, Yoji Tozawa, Toshiyuki Anbo, Hidekazu Sato, Shuumi Kumagai
-
Patent number: 6820320Abstract: A process for the production of an inductor device comprising the steps of forming a green sheet to form an insulating layer; forming a plurality of conductive coil pattern units on the surface of the green sheet in order that a plurality of unit sections each including a single coil pattern unit are arranged on the surface of the green sheet and each two coil pattern units adjoining in the substantially perpendicular direction to the longitudinal direction of the unit sections are arranged centro-symmetrically with respect to a center point of a vertical boundary line of adjoining unit sections; stacking a plurality of green sheets formed with the plurality of coil pattern units arranged in centro-symmetry and connecting the upper and lower coil pattern units separated by the green sheets to form a coil shape; and sintering the stacked green sheets.Type: GrantFiled: September 12, 2001Date of Patent: November 23, 2004Assignee: TDK CorporationInventors: Toshiyuki Anbo, Fumio Uchikoba
-
Publication number: 20040222218Abstract: A process for the production of an inductor device comprising the steps of forming a green sheet to form an insulating layer; forming a plurality of conductive coil pattern units on the surface of the green sheet in order that a plurality of unit sections each including a single coil pattern unit are arranged on the surface of the green sheet and each two coil pattern units adjoining in the substantially perpendicular direction to the longitudinal direction of the unit sections are arranged centro-symmetrically with respect to a center point of a vertical boundary line of adjoining unit sections; stacking a plurality of green sheets formed with the plurality of coil pattern units arranged in centro-symmetry and connecting the upper and lower coil pattern units separated by the green sheets to form a coil shape; and sintering the stacked green sheets.Type: ApplicationFiled: June 8, 2004Publication date: November 11, 2004Applicant: TDK CorporationInventors: Toshiyuki Anbo, Fumio Uchikoba
-
Patent number: 6643913Abstract: A method of manufacturing a laminated ferrite chip inductor array, including the steps of printing on individual ferrite sheets having electrically communicating through holes U-shaped conductor patterns disposed 180° to one another, piling the ferrite sheets together, and sintering the piled ferrite sheets to form the inductor array.Type: GrantFiled: May 11, 2001Date of Patent: November 11, 2003Assignee: TDK CorporationInventors: Fumio Uchikoba, Toshiyuki Anbo
-
Publication number: 20020083575Abstract: A process for the production of an inductor device comprising the steps of forming a green sheet to form an insulating layer; forming a plurality of conductive coil pattern units on the surface of the green sheet in order that a plurality of unit sections each including a single coil pattern unit are arranged on the surface of the green sheet and each two coil pattern units adjoining in the substantially perpendicular direction to the longitudinal direction of the unit sections are arranged centro-symmetrically with respect to a center point of a vertical boundary line of adjoining unit sections; stacking a plurality of green sheets formed with the plurality of coil pattern units arranged in centro-symmetry and connecting the upper and lower coil pattern units separated by the green sheets to form a coil shape; and sintering the stacked green sheets.Type: ApplicationFiled: September 12, 2001Publication date: July 4, 2002Applicant: TDK CorporationInventors: Toshiyuki Anbo, Fumio Uchikoba
-
Patent number: 6413340Abstract: In the method for the preparation of a laminated ferrite inductor device comprising the steps of: laminating a ferrite green sheet lined with and supported by a substrate film of, for example, polyethylene terephthalate provided with a penetrating through-hole and a coil pattern to a second ferrite green sheet followed by removal of the substrate film by peeling to form a laminate of ferrite green sheets to be subjected to sintering, peelability of the substrate film from the ferrite green sheet can be improved to prevent the ferrite green sheet from occurrence of defects such as breaking, crease formation and stretching by providing a snap groove of an adequate incision depth having a rectangular profile of a frame and, along the outer periphery of the snap groove, a peel-facilitating reinforcement pattern by printing with a printing paste to have a specified line width and printing thickness.Type: GrantFiled: October 20, 1999Date of Patent: July 2, 2002Assignee: TDK CorporationInventors: Toshiyuki Anbo, Fumio Uchikoba, Toshihiro Abe, Akihiro Sasaki
-
Patent number: 6362716Abstract: An inductor device provided with a plurality of insulating layers; coil pattern units each formed between insulating layers; and connection portions for connecting upper and lower coil pattern units separated by the insulating layers to form a coil shape. The coil pattern units each have two substantially parallel linear patterns and a curved pattern connecting first ends of the linear patterns. The ratio A1/A2, where the total of the areas of the two linear patterns seen from the plane view is A1 and the area of the curved pattern seen from the plane view is A2, of 1.45 to 1.85, preferably 1.55 to 1.75. When the total area of a unit section of the insulating layer in which one coil pattern unit is contained is A0, the ratio (A1+A2)/A0 is in a range of 0.10 to 0.30, preferably 0.13 to 0.20.Type: GrantFiled: July 2, 1999Date of Patent: March 26, 2002Assignee: TDK CorporationInventors: Toshiyuki Anbo, Fumio Uchikoba
-
Patent number: 6345434Abstract: A process for the production of an inductor device comprising the steps of forming a green sheet to form an insulating layer; forming a plurality of conductive coil pattern units on the surface of the green sheet in order that a plurality of unit sections each including a single coil pattern unit are arranged on the surface of the green sheet and each two coil pattern units adjoining in the substantially perpendicular direction to the longitudinal direction of the unit sections are arranged centro-symmetrically with respect to a center point of a boundary line of adjoining unit sections; stacking a plurality of green sheets formed with the plurality of coil pattern units arranged in centro-symmetry and connecting the upper and lower coil pattern units separated by the green sheets to form a coil shape; and sintering the stacked green sheets. It is possible to obtain an inductor device able to suppress the stack deviation without complicating the production process even if the device is made small in size.Type: GrantFiled: July 2, 1999Date of Patent: February 12, 2002Assignee: TDK CorporationInventors: Toshiyuki Anbo, Fumio Uchikoba
-
Publication number: 20010030592Abstract: A laminated ferrite chip inductor array wherein the array is composed in that multiple layers of ferrite sheets printed with U-shaped patterns of internal conductors are piled in such a manner that the U-shaped patterns of the internal conductors on adjacent sheets are opposed one another, and a plurality of channels composed by sintering the piled layers of coil-shaped structure of the internal conductive printed patterns made electrically communicating via through holes pierced in the ferrite sheets are held in ferrite porcelains, characterized in that the internal conductive pattern shapes of the adjacent chip inductors are turned 180 degree one another.Type: ApplicationFiled: May 11, 2001Publication date: October 18, 2001Applicant: TDK CorporationInventors: Fumio Uchikoba, Toshiyuki Anbo
-
Patent number: 6249206Abstract: A laminated ferrite chip inductor array wherein the array is composed in that multiple layers of ferrite sheets printed with U-shaped patterns of internal conductors are piled in such a manner that the U-shaped patterns of the internal conductors on adjacent sheets are opposed one another, and a plurality of channels composed by sintering the piled layers of coil-shaped structure of the internal conductive printed patterns made electrically communicating via through holes pierced in the ferrite sheets are held in ferrite porcelains, characterized in that the internal conductive pattern shapes of the adjacent chip inductors are turned 180 degree one another.Type: GrantFiled: December 14, 1999Date of Patent: June 19, 2001Assignee: TDK CorporationInventors: Fumio Uchikoba, Toshiyuki Anbo