Patents by Inventor Takahiro Hirao

Takahiro Hirao 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: 20180137976
    Abstract: An electronic component includes a first external electrode disposed on a first end surface and a second external electrode disposed on a second end surface. The first external electrode includes a first conductive layer including ceramic particles. The second external electrode includes a second conductive layer including ceramic particles. An end portion of a first internal electrode is located inside the first conductive layer. The electronic component includes little or no cracks and has a low equivalent series resistance (ESR).
    Type: Application
    Filed: November 13, 2017
    Publication date: May 17, 2018
    Inventors: Tomohiro KAGEYAMA, Tetsuo KAWAKAMI, Manabu SAKAI, Ryuki KAKUTA, Takahiro HIRAO, Takashi OHARA
  • Patent number: 9922767
    Abstract: A ceramic electronic component includes an electronic component ceramic main body and internal electrodes disposed within the electronic component main body. The internal electrodes include through holes passing through the internal electrodes in the thickness direction. Ceramic columns are disposed in the through holes and connect the ceramic on one side of the internal electrodes and the ceramic on the other side thereof. An area ratio of the ceramic columns to ends of the internal electrodes located within the electronic component main body is greater than an area ratio of ceramic columns to central portions of the internal electrodes.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: March 20, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takahiro Hirao, Kenji Ueno
  • Patent number: 9905364
    Abstract: A multilayer ceramic electronic component includes a multilayer body including ceramic layers and inner electrode layers, the inner electrode layers being disposed on interfaces between the ceramic layers, and an outer electrode on an external surface of the multilayer body and electrically connected to first end portions of the inner electrode layers exposed to the external surface of the multilayer body. Each of the ceramic layers includes a thin portion with a continuously reducing thickness near the first end portion. Each inner electrode layer includes a thick portion near a connection with the outer electrode, the thick portion having a thickness continuously increasing toward the connection on a first side in accordance with a shape of the thin portion in the ceramic layer.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: February 27, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Takahiro Hirao
  • Publication number: 20170263383
    Abstract: In an electronic component, a first outer electrode includes a first conductive layer provided on a first end surface. A second outer electrode includes a second conductive layer provided on a second end surface. A first inner electrode passes through the first conductive layer. A second inner electrode passes through the second conductive layer.
    Type: Application
    Filed: March 7, 2017
    Publication date: September 14, 2017
    Inventors: Tomohiro KAGEYAMA, Tetsuo KAWAKAMI, Manabu SAKAI, Takashi OHARA, Takahiro HIRAO, Ryuki KAKUTA
  • Publication number: 20170125167
    Abstract: A multilayer electronic component includes outer electrodes each including an outer electrode main body electrically conducted to an internal electrode and entering portions that project from the outer electrode main body as a base end and enter into the electronic component element through an end surface of the electronic component element. The entering portions each include a slope relative to a principal surface in a flat region including a major portion of the internal electrode.
    Type: Application
    Filed: October 28, 2016
    Publication date: May 4, 2017
    Inventors: Tetsuo KAWAKAMI, Takahiro HIRAO, Tsutomu TANAKA, Tomohiro KAGEYAMA
  • Publication number: 20160212895
    Abstract: A method for manufacturing an electronic component, and a device for manufacturing the electronic component, which can easily achieve alignment by inserting multilayer chips into cavities formed in a pallet, and form external electrodes with a high degree of dimensional accuracy. A plurality of multilayer chips each composed of a laminated body with a plurality of ceramic layers and a plurality of internal electrode layers is inserted into each of a plurality of cavities formed in a pallet, and the plurality of multilayer chips is aligned by moving each of the plurality of multilayer chips to one of inner wall surfaces forming the cavity. A conductive ink is applied onto ends of the plurality of aligned multilayer chips, including the upper surface of the pallet, and the conductive ink applied is dried to form external electrodes on the plurality of multilayer chips.
    Type: Application
    Filed: March 25, 2016
    Publication date: July 21, 2016
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Seiji GOTO, Takahiro HIRAO
  • Publication number: 20160093443
    Abstract: A ceramic electronic component includes an electronic component ceramic main body and internal electrodes disposed within the electronic component main body. The internal electrodes include through holes passing through the internal electrodes in the thickness direction. Ceramic columns are disposed in the through holes and connect the ceramic on one side of the internal electrodes and the ceramic on the other side thereof. An area ratio of the ceramic columns to ends of the internal electrodes located within the electronic component main body is greater than an area ratio of ceramic columns to central portions of the internal electrodes.
    Type: Application
    Filed: September 18, 2015
    Publication date: March 31, 2016
    Inventors: Takahiro HIRAO, Kenji UENO
  • Publication number: 20160020029
    Abstract: A multilayer ceramic electronic component includes a multilayer body including ceramic layers and inner electrode layers, the inner electrode layers being disposed on interfaces between the ceramic layers, and an outer electrode on an external surface of the multilayer body and electrically connected to first end portions of the inner electrode layers exposed to the external surface of the multilayer body. Each of the ceramic layers includes a thin portion with a continuously reducing thickness near the first end portion. Each inner electrode layer includes a thick portion near a connection with the outer electrode, the thick portion having a thickness continuously increasing toward the connection on a first side in accordance with a shape of the thin portion in the ceramic layer.
    Type: Application
    Filed: June 19, 2015
    Publication date: January 21, 2016
    Inventor: Takahiro HIRAO
  • Publication number: 20150348713
    Abstract: A ceramic electronic component which is easily downsized, has reduced difficulty in handling, and is hardly chipped in a chip; and a method for producing the ceramic electronic component. The method includes the steps of: forming an uncured ceramic pattern which forms a ceramic layer after firing and has a circular plane shape by applying a ceramic slurry, which contains a ceramic material, to a predetermined location one time or a plurality of times repeatedly using a non-contact-type printing device such as an ink-jet printer; and forming uncured internal electrode patterns which form internal electrodes after firing and each have a circular plane shape by applying an electrode paste, which contains an internal electrode material, to a predetermined location one time or a plurality of times repeatedly using an ink-jet printer.
    Type: Application
    Filed: August 10, 2015
    Publication date: December 3, 2015
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: Takahiro HIRAO
  • Publication number: 20150332853
    Abstract: A method for manufacturing a ceramic electronic component by forming a dielectric layer by ejecting a dielectric layer ink having a pigment volume concentration of 60% or more and 95% or less with an ink-jet system, forming a conductor layer by ejecting a metal pigment ink having a pigment volume concentration of 70% or more and 95% or less with the ink-jet system, forming a body having a conductor circuit by combining the formed dielectric layer and the formed conductor layer appropriately, removing organic components of the resulting formed body by degreasing, and sintering the dielectric layer and the conductor layer by firing.
    Type: Application
    Filed: May 6, 2015
    Publication date: November 19, 2015
    Inventors: Tomohiro Kageyama, Tetsuo Kawakami, Tsutomu Tanaka, Kenichi Shimazaki, Takahiro Hirao