Patents by Inventor Mitsuhiro Kusano

Mitsuhiro Kusano 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: 20120057272
    Abstract: A laminated ceramic capacitor which has high moisture resistance includes a laminated body including a plurality of stacked ceramic layers and internal electrodes placed between the ceramic layers; and an external electrode formed on an outer surface of the laminated body and electrically connected to the internal electrodes, and the laminated ceramic capacitor has the feature that the ceramic layers contain CaZrO3 as their main constituent, and the feature that a layer containing a (Ba, Ca)—Zn—Si based oxide (including an oxide containing no Ca) is formed between the laminated body and the external electrode.
    Type: Application
    Filed: August 31, 2011
    Publication date: March 8, 2012
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Tomotaka Hirata, Mitsuhiro Kusano
  • Patent number: 8035950
    Abstract: The formation of a resistive electrode layer as a portion of an external electrode of a monolithic ceramic capacitor by baking a resistive paste, which contains ITO, a glass frit, and an organic vehicle, to impart the function of a resistance element to the external electrode may lead to the occurrence of blisters or reduced denseness. This is modulated when the resistive paste further contains a densification promoting metal or oxide, which promotes densification of a sintered compact of the resistive paste, and a densification preventing metal oxide, which prevents the densification.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: October 11, 2011
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Mitsuhiro Kusano, Shizuharu Watanabe
  • Patent number: 7751175
    Abstract: A multilayer ceramic capacitor having external electrodes. Each of the external electrodes has a lower layer resistance electrode and an upper layer conductive electrode. A glass contained in the upper layer conductive electrode has a softening point higher than that of a glass contained in the lower layer resistance electrode by 20° C. or more.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: July 6, 2010
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Toshiki Nagamoto, Mitsuhiro Kusano
  • Patent number: 7659568
    Abstract: An external electrode structure for a monolithic ceramic capacitor provided with a function as a resistance element is capable of preventing a reduction of the external electrode due to baking in a reducing atmosphere, so that Ni or a Ni alloy can be used in an internal electrode and a good electrical connection between the internal electrode and the external electrode is achieved. The external electrodes disposed on an outer surface of a capacitor main body include an electrically conductive layer and a metal plating layer disposed thereon, and the electrically conductive layer includes a compound oxide, e.g., an In—Sn compound oxide, which reacts with Ni or the Ni alloy, and a glass component.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: February 9, 2010
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Mitsuhiro Kusano, Shizuharu Watanabe
  • Publication number: 20090290281
    Abstract: A multilayer ceramic capacitor having external electrodes. Each of the external electrodes has a lower layer resistance electrode and an upper layer conductive electrode. A glass contained in the upper layer conductive electrode has a softening point higher than that of a glass contained in the lower layer resistance electrode by 20° C. or more.
    Type: Application
    Filed: August 7, 2009
    Publication date: November 26, 2009
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Toshiki Nagamoto, Mitsuhiro Kusano
  • Publication number: 20090284898
    Abstract: The formation of a resistive electrode layer as a portion of an external electrode of a monolithic ceramic capacitor by baking a resistive paste, which contains ITO, a glass frit, and an organic vehicle, to impart the function of a resistance element to the external electrode may lead to the occurrence of blisters or reduced denseness. This is modulated when the resistive paste further contains a densification promoting metal or oxide, which promotes densification of a sintered compact of the resistive paste, and a densification preventing metal oxide, which prevents the densification.
    Type: Application
    Filed: July 31, 2009
    Publication date: November 19, 2009
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Mitsuhiro Kusano, Shizuharu Watanabe
  • Patent number: 7612983
    Abstract: A monolithic ceramic electronic component includes a ceramic laminate provided with ceramic layers and internal electrode layers disposed between the ceramic layers such that a portion of each internal electrode is led to an end surface of the ceramic laminate and the external electrode disposed on the end surface of the ceramic laminate to which the internal electrode layers are led, so as to connect to the internal electrode layers. At least one end portion in a longitudinal direction of an exposed portion of the internal electrode layer led to and exposed at the end surface of the ceramic laminate is covered with a glass film, and the internal electrodes and the external electrode are electrically connected to each other at a portion not covered with the glass film in the exposed portion of the internal electrode layer.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: November 3, 2009
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kiyotaka Maegawa, Mitsuhiro Kusano
  • Patent number: 7589954
    Abstract: Provided is a multilayer ceramic capacitor including external electrodes which also functions as a resistive element, and the external electrodes achieve strong bonding with internal electrodes containing Ni or a Ni alloy. The external electrodes include a resistive electrode layers contacting a ceramic laminate and internal electrodes. The resistive electrode layers contains a complex oxide which reacts with Ni or a Ni alloy contained in the internal electrodes in a proportion of 26 to 79% by weight, a glass component in a proportion of 20 to 56% by weight, and metal which reacts with Ni or a Ni alloy in a proportion of 1 to 18% by weight.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: September 15, 2009
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Mitsuhiro Kusano, Toshiki Nagamoto
  • Publication number: 20090190285
    Abstract: Provided is a multilayer ceramic capacitor including external electrodes which also functions as a resistive element, and the external electrodes achieve strong bonding with internal electrodes containing Ni or a Ni alloy. The external electrodes include a resistive electrode layers contacting a ceramic laminate and internal electrodes. The resistive electrode layers contains a complex oxide which reacts with Ni or a Ni alloy contained in the internal electrodes in a proportion of 26 to 79% by weight, a glass component in a proportion of 20 to 56% by weight, and metal which reacts with Ni or a Ni alloy in a proportion of 1 to 18% by weight.
    Type: Application
    Filed: April 8, 2009
    Publication date: July 30, 2009
    Applicant: MURATA MANUFACTURING CO., LTD
    Inventors: Mitsuhiro Kusano, Toshiki Nagamoto
  • Publication number: 20070297119
    Abstract: A monolithic ceramic electronic component includes a ceramic laminate provided with ceramic layers and internal electrode layers disposed between the ceramic layers such that a portion of each internal electrode is led to an end surface of the ceramic laminate and the external electrode disposed on the end surface of the ceramic laminate to which the internal electrode layers are led, so as to connect to the internal electrode layers. At least one end portion in a longitudinal direction of an exposed portion of the internal electrode layer led to and exposed at the end surface of the ceramic laminate is covered with a glass film, and the internal electrodes and the external electrode are electrically connected to each other at a portion not covered with the glass film in the exposed portion of the internal electrode layer.
    Type: Application
    Filed: August 28, 2007
    Publication date: December 27, 2007
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Kiyotaka Maegawa, Mitsuhiro Kusano
  • Publication number: 20070128794
    Abstract: An external electrode structure for a monolithic ceramic capacitor provided with a function as a resistance element is capable of preventing a reduction of the external electrode due to baking in a reducing atmosphere, so that Ni or a Ni alloy can be used in an internal electrode and a good electrical connection between the internal electrode and the external electrode is achieved. The external electrodes disposed on an outer surface of a capacitor main body include an electrically conductive layer and a metal plating layer disposed thereon, and the electrically conductive layer includes a compound oxide, e.g., an In—Sn compound oxide, which reacts with Ni or the Ni alloy, and a glass component.
    Type: Application
    Filed: February 2, 2007
    Publication date: June 7, 2007
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Mitsuhiro KUSANO, Shizuharu WATANABE
  • Patent number: 4897663
    Abstract: A horn antenna for radiating or receiving a microwave is provided with a plurality of axially spaced radial fins fixedly mounted on the outer surface of the horn, which fins form a plurality of radial grooves and a front axial groove each having a depth of approximately equal to a quarter of a wavelength of the microwave. Those fins and grooves form a choke surface-wave structure which improves the radiation pattern and reduces undesired radiation and side lobe. A multimode horn arrangement for a higher frequency wave is employed for the horn so that two different frequency waves are efficiently radiated or received at a single horn antenna with a reduced side lobe and an excellent cross polarization characteristic.
    Type: Grant
    Filed: December 24, 1986
    Date of Patent: January 30, 1990
    Assignee: NEC Corporation
    Inventors: Mitsuhiro Kusano, Kazuo Kosukegawa, Kazuhiko Kurokawa
  • Patent number: 4605935
    Abstract: A shaped beam antenna of the type comprising a main reflector and a feed horn for irradiating an electromagnetic wave upon said main reflector, the main reflector including, in sectional planes inclusive of a Y-Z plane and planes parallel thereto, a central section and horizontal side end sections adjoining the central section, where Cartesian coordinates are assumed having an origin near the feed horn, a Z-axis extending in a direction of the horizontal center axis of the feed horn, and X- and Y-axes extending in planes perpendicular to the Z-axis.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: August 12, 1986
    Assignee: NEC Corporation
    Inventor: Mitsuhiro Kusano