Patents by Inventor Hirokazu Takashima

Hirokazu Takashima 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: 20240055185
    Abstract: An electronic component includes a laminate in which first internal electrodes and second internal electrodes are alternately laminated in a lamination direction with dielectric layers interposed therebetween, the laminate including a first main surface and a second main surface opposite to each other in the lamination direction, a first side surface and a second side surface opposite to each other in a width direction, and a first end surface and a second end surface opposite to each other in a length direction, a first external electrode provided on a surface of the laminate and electrically connected to the first internal electrodes, a second external electrode provided on a surface of the laminate and electrically connected to the second internal electrodes, and side margin portions each including a dielectric including Ca, Zr, and Ti.
    Type: Application
    Filed: October 13, 2023
    Publication date: February 15, 2024
    Inventors: Eiji TERAOKA, Hirokazu TAKASHIMA
  • Patent number: 11817263
    Abstract: An electronic component includes a laminate in which first internal electrodes and second internal electrodes are alternately laminated in a lamination direction with dielectric layers interposed therebetween, the laminate including a first main surface and a second main surface opposite to each other in the lamination direction, a first side surface and a second side surface opposite to each other in a width direction, and a first end surface and a second end surface opposite to each other in a length direction, a first external electrode provided on a surface of the laminate and electrically connected to the first internal electrodes, a second external electrode provided on a surface of the laminate and electrically connected to the second internal electrodes, and side margin portions each including a dielectric including Ca, Zr, and Ti.
    Type: Grant
    Filed: January 19, 2023
    Date of Patent: November 14, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Eiji Teraoka, Hirokazu Takashima
  • Publication number: 20230154680
    Abstract: An electronic component includes a laminate in which first internal electrodes and second internal electrodes are alternately laminated in a lamination direction with dielectric layers interposed therebetween, the laminate including a first main surface and a second main surface opposite to each other in the lamination direction, a first side surface and a second side surface opposite to each other in a width direction, and a first end surface and a second end surface opposite to each other in a length direction, a first external electrode provided on a surface of the laminate and electrically connected to the first internal electrodes, a second external electrode provided on a surface of the laminate and electrically connected to the second internal electrodes, and side margin portions each including a dielectric including Ca, Zr, and Ti.
    Type: Application
    Filed: January 19, 2023
    Publication date: May 18, 2023
    Inventors: Eiji TERAOKA, Hirokazu TAKASHIMA
  • Patent number: 11587731
    Abstract: An electronic component includes a laminate in which first internal electrodes and second internal electrodes are alternately laminated in a lamination direction with dielectric layers interposed therebetween, the laminate including a first main surface and a second main surface opposite to each other in the lamination direction, a first side surface and a second side surface opposite to each other in a width direction, and a first end surface and a second end surface opposite to each other in a length direction, a first external electrode provided on a surface of the laminate and electrically connected to the first internal electrodes, a second external electrode provided on a surface of the laminate and electrically connected to the second internal electrodes, and side margin portions each including a dielectric including Ca, Zr, and Ti.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: February 21, 2023
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Eiji Teraoka, Hirokazu Takashima
  • Publication number: 20220093334
    Abstract: An electronic component includes a laminate in which first internal electrodes and second internal electrodes are alternately laminated in a lamination direction with dielectric layers interposed therebetween, the laminate including a first main surface and a second main surface opposite to each other in the lamination direction, a first side surface and a second side surface opposite to each other in a width direction, and a first end surface and a second end surface opposite to each other in a length direction, a first external electrode provided on a surface of the laminate and electrically connected to the first internal electrodes, a second external electrode provided on a surface of the laminate and electrically connected to the second internal electrodes, and side margin portions each including a dielectric including Ca, Zr, and Ti.
    Type: Application
    Filed: December 8, 2021
    Publication date: March 24, 2022
    Inventors: Eiji TERAOKA, Hirokazu TAKASHIMA
  • Patent number: 11232907
    Abstract: An electronic component includes a laminate in which first internal electrodes and second internal electrodes are alternately laminated in a lamination direction with dielectric layers interposed therebetween, the laminate including a first main surface and a second main surface opposite to each other in the lamination direction, a first side surface and a second side surface opposite to each other in a width direction, and a first end surface and a second end surface opposite to each other in a length direction, a first external electrode provided on a surface of the laminate and electrically connected to the first internal electrodes, a second external electrode provided on a surface of the laminate and electrically connected to the second internal electrodes, and side margin portions each including a dielectric including Ca, Zr, and Ti.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: January 25, 2022
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Eiji Teraoka, Hirokazu Takashima
  • Publication number: 20200111613
    Abstract: An electronic component includes a laminate in which first internal electrodes and second internal electrodes are alternately laminated in a lamination direction with dielectric layers interposed therebetween, the laminate including a first main surface and a second main surface opposite to each other in the lamination direction, a first side surface and a second side surface opposite to each other in a width direction, and a first end surface and a second end surface opposite to each other in a length direction, a first external electrode provided on a surface of the laminate and electrically connected to the first internal electrodes, a second external electrode provided on a surface of the laminate and electrically connected to the second internal electrodes, and side margin portions each including a dielectric including Ca, Zr, and Ti.
    Type: Application
    Filed: September 25, 2019
    Publication date: April 9, 2020
    Inventors: Eiji TERAOKA, Hirokazu TAKASHIMA
  • Patent number: 10297391
    Abstract: A composite electronic component includes a substrate with a first main surface and a side end surface, a first electronic component including external electrodes and mounted on the first main surface of the substrate, a second electronic component including external electrodes and being different in electrical function from the first electronic component mounted on the first main surface of the substrate, and a conductive pattern on the first main surface of the substrate, electrically connecting the first electronic component and the second electronic component to each other, and including one end reaching a side of one side end of the substrate, one external electrode of the first electronic component and one external electrode of the second electronic component being located on the side of the one side end of the substrate, another external electrode of the first electronic component and another external electrode of the second electronic component being connected to the conductive pattern, and the compos
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: May 21, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Koki Shibuya, Hirokazu Takashima, Akio Masunari, Tomoyuki Nakamura
  • Patent number: 9967980
    Abstract: A multilayer ceramic capacitor includes a ceramic element body including first and second external electrodes on first and second end surface sides of the ceramic element body, respectively. The first external electrode includes an Ni plating layer and an Sn plating layer defining a plating layer. The second external electrode includes an Au plating layer defining a plating layer.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: May 8, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Akio Masunari, Hirokazu Takashima, Tomoyuki Nakamura
  • Patent number: 9881740
    Abstract: A monolithic ceramic capacitor includes an element body having therein a multilayer portion formed of a plurality of conductor layers and a plurality of ceramic dielectric layers alternately stacked in a thickness direction; and a first outer electrode and a second outer electrode provided on an outer portion of the element body. The element body is divided in the thickness direction into a thickness-direction first outer layer portion, a thickness-direction second outer layer portion, and a thickness-direction inner layer portion located between the thickness-direction first outer layer portion and the thickness-direction second outer layer portion and including the multilayer portion. A first conductor layer and a second conductor layer, which are outermost layers among the plurality of conductor layers, have lower conductor densities than any of conductor densities of the other conductor layers.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: January 30, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hirokazu Takashima, Satoki Sakai
  • Publication number: 20170208691
    Abstract: A multilayer ceramic capacitor includes a ceramic element body including first and second external electrodes on first and second end surface sides of the ceramic element body, respectively. The first external electrode includes an Ni plating layer and an Sn plating layer defining a plating layer. The second external electrode includes an Au plating layer defining a plating layer.
    Type: Application
    Filed: December 23, 2016
    Publication date: July 20, 2017
    Inventors: Akio MASUNARI, Hirokazu TAKASHIMA, Tomoyuki NAKAMURA
  • Publication number: 20170207029
    Abstract: A composite electronic component includes a substrate with a first main surface and a side end surface, a first electronic component including external electrodes and mounted on the first main surface of the substrate, a second electronic component including external electrodes and being different in electrical function from the first electronic component mounted on the first main surface of the substrate, and a conductive pattern on the first main surface of the substrate, electrically connecting the first electronic component and the second electronic component to each other, and including one end reaching a side of one side end of the substrate, one external electrode of the first electronic component and one external electrode of the second electronic component being located on the side of the one side end of the substrate, another external electrode of the first electronic component and another external electrode of the second electronic component being connected to the conductive pattern, and the compos
    Type: Application
    Filed: December 27, 2016
    Publication date: July 20, 2017
    Inventors: Koki SHIBUYA, Hirokazu TAKASHIMA, Akio MASUNARI, Tomoyuki NAKAMURA
  • Patent number: 9640322
    Abstract: A monolithic ceramic capacitor includes an element body having therein a multilayer portion formed of a plurality of conductor layers and a plurality of ceramic dielectric layers alternately stacked in a thickness direction; and a first outer electrode and a second outer electrode provided on an outer portion of the element body. The element body is divided in the thickness direction into a thickness-direction first outer layer portion, a thickness-direction second outer layer portion, and a thickness-direction inner layer portion located between the thickness-direction first outer layer portion and the thickness-direction second outer layer portion and including the multilayer portion. A first conductor layer and a second conductor layer, which are outermost layers among the plurality of conductor layers, have lower conductor densities than any of conductor densities of the other conductor layers.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: May 2, 2017
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hirokazu Takashima, Satoki Sakai
  • Publication number: 20170092425
    Abstract: A monolithic ceramic capacitor includes an element body having therein a multilayer portion formed of a plurality of conductor layers and a plurality of ceramic dielectric layers alternately stacked in a thickness direction; and a first outer electrode and a second outer electrode provided on an outer portion of the element body. The element body is divided in the thickness direction into a thickness-direction first outer layer portion, a thickness-direction second outer layer portion, and a thickness-direction inner layer portion located between the thickness-direction first outer layer portion and the thickness-direction second outer layer portion and including the multilayer portion. A first conductor layer and a second conductor layer, which are outermost layers among the plurality of conductor layers, have lower conductor densities than any of conductor densities of the other conductor layers.
    Type: Application
    Filed: December 12, 2016
    Publication date: March 30, 2017
    Inventors: Hirokazu TAKASHIMA, Satoki SAKAI
  • Publication number: 20150116898
    Abstract: A monolithic ceramic capacitor includes an element body having therein a multilayer portion formed of a plurality of conductor layers and a plurality of ceramic dielectric layers alternately stacked in a thickness direction; and a first outer electrode and a second outer electrode provided on an outer portion of the element body. The element body is divided in the thickness direction into a thickness-direction first outer layer portion, a thickness-direction second outer layer portion, and a thickness-direction inner layer portion located between the thickness-direction first outer layer portion and the thickness-direction second outer layer portion and including the multilayer portion. A first conductor layer and a second conductor layer, which are outermost layers among the plurality of conductor layers, have lower conductor densities than any of conductor densities of the other conductor layers.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 30, 2015
    Inventors: Hirokazu TAKASHIMA, Satoki SAKAI
  • Patent number: 8649156
    Abstract: In a capacitor body of a multilayer capacitor, one second capacitor portion is sandwiched between two first capacitor portions. An ESR is controlled by setting a width of lead portions of third and fourth internal electrodes disposed in the second capacitor portion to be less than that of lead portions of first and second internal electrodes disposed in the first capacitor portions and by changing ratios between the first and second capacitor portions in the width of the lead portions and in the number of stacked internal electrodes. In the first capacitor portions, current paths from the internal electrodes to an external terminal electrode are widely distributed so that the first capacitor portions have a relatively low ESL, and accordingly, the ESL of the entire multilayer capacitor is reduced.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: February 11, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hirokazu Takashima, Hiroshi Ueoka, Yoshikazu Takagi
  • Patent number: 8315033
    Abstract: In a capacitor body, a single second capacitor unit is interposed between two first capacitor units. The width direction dimension of each of extended portions of first and second internal electrodes included in the first capacitor unit is larger than the width direction dimension of each of extended portions of third and fourth internal electrodes included in the second capacitor unit. The area of each of the respective portions of a first opposed portion of the first internal electrode and a second opposed portion of the second internal electrode, the respective portions being opposed to each other, is smaller than the area of each of respective portions of opposed portions of the third and fourth internal electrodes, the respective portions being opposed to each other. Thus, a multilayer capacitor has a characteristic that is a combination of a low-ESL characteristic of the first capacitor unit and a high-ESR characteristic of the second capacitor.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: November 20, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hirokazu Takashima, Hiroshi Ueoka, Yoshikazu Takagi
  • Patent number: 8310804
    Abstract: A multi-terminal monolithic ceramic capacitor arranged to reduce an equivalent series inductance and having an array structure is provided. A first same-polarity-connection conductor and a second same-polarity-connection conductor are provided inside a capacitor body so as to extend over at least two capacitors. The first same-polarity-connection conductor is electrically connected to a plurality of first external terminal electrodes, and the second same-polarity-connection conductor is connected to a plurality of second external terminal electrodes. In the monolithic ceramic capacitor which is mounted on a wiring substrate, the overall capacitance can be maintained even if an accident, such as cracking of a solder joint, occurs in one of the external terminal electrodes.
    Type: Grant
    Filed: May 22, 2008
    Date of Patent: November 13, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hirokazu Takashima, Hiroshi Ueoka, Yoshikazu Takagi
  • Publication number: 20120113560
    Abstract: In a capacitor body of a multilayer capacitor, one second capacitor portion is sandwiched between two first capacitor portions. An ESR is controlled by setting a width of lead portions of third and fourth internal electrodes disposed in the second capacitor portion to be less than that of lead portions of first and second internal electrodes disposed in the first capacitor portions and by changing ratios between the first and second capacitor portions in the width of the lead portions and in the number of stacked internal electrodes. In the first capacitor portions, current paths from the internal electrodes to an external terminal electrode are widely distributed so that the first capacitor portions have a relatively low ESL, and accordingly, the ESL of the entire multilayer capacitor is reduced.
    Type: Application
    Filed: January 13, 2012
    Publication date: May 10, 2012
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Hirokazu TAKASHIMA, Hiroshi UEOKA, Yoshikazu TAKAGI
  • Patent number: 8120891
    Abstract: In a capacitor body of a multilayer capacitor, one second capacitor portion is sandwiched between two first capacitor portions. An ESR is controlled by setting a width of lead portions of third and fourth internal electrodes disposed in the second capacitor portion to be less than that of lead portions of first and second internal electrodes disposed in the first capacitor portions and by changing ratios between the first and second capacitor portions in the width of the lead portions and in the number of stacked internal electrodes. In the first capacitor portions, current paths from the internal electrodes to an external terminal electrode are widely distributed so that the first capacitor portions have a relatively low ESL, and accordingly, the ESL of the entire multilayer capacitor is reduced.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: February 21, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hirokazu Takashima, Hiroshi Ueoka, Yoshikazu Takagi