Patents by Inventor Naoto MURANISHI

Naoto MURANISHI 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: 20210287853
    Abstract: An Mn/Ti peak intensity ratio in a dielectric ceramic layer in an end surface outer layer portion is within two times to fifteen times of the Mn/Ti peak intensity ratio in a central portion, a rare earth element/Ti peak intensity ratio in the dielectric ceramic layer in the end surface outer layer portion is within two times to seven times the rare earth element/Ti peak intensity ratio in the central portion, an Si/Ti peak intensity ratio in the dielectric ceramic layer in a side surface outer layer portion is within two times to five times the Si/Ti peak intensity ratio in the central portion, and the rare earth element/Ti peak intensity ratio in the dielectric ceramic layer in the side surface outer layer portion is within two times to seven times the rare earth element/Ti peak intensity ratio.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 16, 2021
    Inventors: Takehisa Sasabayashi, Yasuyuki Shimada, Naoto Muranishi, Shinichi Kokawa
  • Publication number: 20210287854
    Abstract: An end surface outer layer Mn/Ti peak intensity ratio, which is a ratio of a peak intensity of Mn found by laser ICP to a peak intensity of Ti found by laser ICP in a dielectric ceramic layer in an end surface outer layer portion, is higher than a central portion Mn/Ti peak intensity ratio, which is a ratio of a peak intensity of Mn found by laser ICP to a peak intensity of Ti found by laser ICP in the dielectric ceramic layer in a central portion in a width direction, a length direction, and a layering direction in an effective portion, and a peak intensity of Ni found by TEM-EDX is in a portion of the dielectric ceramic layers in the end surface outer layer portion.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 16, 2021
    Inventors: Takehisa Sasabayashi, Yasuyuki Shimada, Naoto Muranishi, Shinichi Kokawa
  • Patent number: 11081279
    Abstract: A multilayer ceramic capacitor that includes outer electrodes and a multilayer body having stacked inner electrode layers and dielectric layers. The dielectric layers in an effective section contain, relative to 100 parts by mole of Ti, 0.7 to 1.2 parts by mole of Si, 0.9 to 1.1 parts by mole of Dy, 0.24 to 0.34 parts by mole of Mg, 0.17 to 0.23 parts by mole of Al, 0.09 to 0.11 parts by mole of Mn, and 0.04 to 0.06 parts by mole of V. The dielectric layers have a Ba/Ti molar ratio of 1.0073 to 1.0083.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: August 3, 2021
    Inventors: Kazuhisa Uchida, Naoto Muranishi
  • Publication number: 20210210285
    Abstract: In a multilayer ceramic capacitor, when a ratio of an ICP peak intensity of Mn to an ICP peak intensity of Ti is an Mn/Ti peak intensity ratio, a value of the Mn/Ti peak intensity ratio in a dielectric ceramic layer in at least one of a main surface outer layer portion, a side surface outer layer portion, and an end surface outer layer portion is in a range of two times to fifteen times a value of the Mn/Ti peak intensity ratio in a dielectric ceramic layer in a central portion of an effective portion in a width direction, a length direction, and a stacking direction.
    Type: Application
    Filed: December 23, 2020
    Publication date: July 8, 2021
    Inventors: Takehisa Sasabayashi, Yasuyuki Shimada, Naoto Muranishi, Shinichi Kokawa
  • Publication number: 20210074482
    Abstract: A multilayer ceramic capacitor includes a multilayer body including dielectric layers and layered internal electrodes, first and second main surfaces, first and second side surfaces, first and second end surfaces, and an external electrode connected to the internal electrodes and provided on each of the first and second end surfaces. A region where the internal electrodes are superimposed is defined as an effective region, regions respectively located on sides of the first and second end surfaces relative to the effective region are defined as first and second regions, and a bent portion where the dielectric layers and the internal electrodes are bent is located in the first region. In the bent portion, all vertices in the stacking direction are located within a range that extends by about 25 ?m to about 35 ?m in a length direction from the effective region of the multilayer body.
    Type: Application
    Filed: August 24, 2020
    Publication date: March 11, 2021
    Inventors: Shinichi KOKAWA, Yasuyuki SHIMADA, Naoto MURANISHI, Takehisa SASABAYASHI
  • Publication number: 20200312562
    Abstract: A ceramic electronic component includes a ceramic main body in which dielectric layers and internal electrodes are laminated, the ceramic main body including a pair of principal surfaces, a pair of side surfaces, and a pair of end surfaces, the internal electrodes are exposed to the end surfaces, and an underlayer external electrode covers at least a portion of the end surface. When a section of the ceramic main body is viewed, the underlayer external electrode is discontinuously provided on the ceramic main body. The ceramic main body includes an exposed region partially exposed from the discontinuously provided underlayer external electrode, the exposed region is covered with a resin layer, and the underlayer external electrode is covered with a plating film.
    Type: Application
    Filed: March 10, 2020
    Publication date: October 1, 2020
    Inventors: Kazuhiro NISHIBAYASHI, Yoshiyuki NOMURA, Naoto MURANISHI
  • Publication number: 20200185152
    Abstract: A multilayer ceramic capacitor that includes outer electrodes and a multilayer body having stacked inner electrode layers and dielectric layers. The dielectric layers in an effective section contain, relative to 100 parts by mole of Ti, 0.7 to 1.2 parts by mole of Si, 0.9 to 1.1 parts by mole of Dy, 0.24 to 0.34 parts by mole of Mg, 0.17 to 0.23 parts by mole of Al, 0.09 to 0.11 parts by mole of Mn, and 0.04 to 0.06 parts by mole of V. The dielectric layers have a Ba/Ti molar ratio of 1.0073 to 1.0083.
    Type: Application
    Filed: November 25, 2019
    Publication date: June 11, 2020
    Inventors: Kazuhisa Uchida, Naoto Muranishi
  • Patent number: 10109423
    Abstract: In an electronic component, each of a distance between a first outer electrode and a third outer electrode along a length direction and a distance between a second outer electrode and the third outer electrode along a length direction is about 8% to about 13% of a dimension of the electronic component along the length direction.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: October 23, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takanobu Katsuyama, Yasunari Nakamura, Naoto Muranishi, Takashi Sawada
  • Patent number: 9142351
    Abstract: A first terminal electrode extends from a second principal surface onto first and second side surfaces and a first end surface such as not to reach a first principal surface. A second terminal electrode extends from the second principal surface onto the first and second side surfaces and a second end surface such as not to reach the first principal surface. A third terminal electrode extends from the second principal surface onto the first and second side surfaces such as not to reach the first principal surface.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: September 22, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takanobu Katsuyama, Yasunari Nakamura, Naoto Muranishi, Masaaki Taniguchi, Takashi Sawada
  • Publication number: 20150221436
    Abstract: A first terminal electrode extends from a second principal surface onto first and second side surfaces and a first end surface such as not to reach a first principal surface. A second terminal electrode extends from the second principal surface onto the first and second side surfaces and a second end surface such as not to reach the first principal surface. A third terminal electrode extends from the second principal surface onto the first and second side surfaces such as not to reach the first principal surface.
    Type: Application
    Filed: November 21, 2014
    Publication date: August 6, 2015
    Inventors: Takanobu KATSUYAMA, Yasunari NAKAMURA, Naoto MURANISHI, Masaaki TANIGUCHI, Takashi SAWADA
  • Publication number: 20150221441
    Abstract: In an electronic component, each of a distance between a first outer electrode and a third outer electrode along a length direction and a distance between a second outer electrode and the third outer electrode along a length direction is about 8% to about 13% of a dimension of the electronic component along the length direction.
    Type: Application
    Filed: November 19, 2014
    Publication date: August 6, 2015
    Inventors: Takanobu KATSUYAMA, Yasunari NAKAMURA, Naoto MURANISHI, Takashi SAWADA
  • Patent number: 9082556
    Abstract: A monolithic ceramic capacitor includes a ceramic sintered body including a plurality of stacked ceramic layers, and first and second inner electrodes alternately arranged inside the ceramic sintered body to oppose each other in a stacking direction of the ceramic layers with the ceramic layers interposed between the adjacent first and second inner electrodes. Among the ceramic layers, a number N of the ceramic layers disposed between the first inner electrodes and the second inner electrodes is at least 232. A proportion of volume occupied by the first and second inner electrodes in the ceramic sintered body is at least about 0.37. A size of each of side gap portions is about 40 ?m or less.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: July 14, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Daiki Fukunaga, Kenichi Okajima, Yasuharu Yamashita, Naoto Muranishi, Hideaki Tanaka
  • Patent number: 8773839
    Abstract: A multilayer ceramic electronic component that is small, that has high electrical strength, and that is resistant to separation between ceramic layers includes a ceramic sintered body having a substantially rectangular parallelepiped shape and a plurality of first and second internal electrodes. The plurality of first and second internal electrodes are alternately arranged so as to face each other. The first and second internal electrodes are parallel or substantially parallel to first and second major surfaces. The first and second internal electrodes are exposed to at least one of the fifth and sixth surfaces and are not exposed to the third or fourth surface. No bends exist in any of the ends of each of the first and second internal electrodes adjacent to the third and fourth surfaces.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: July 8, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yasuharu Yamashita, Kenichi Okajima, Hideaki Tanaka, Naoto Muranishi, Daiki Fukunaga, Nagato Omori
  • Publication number: 20120250217
    Abstract: A monolithic ceramic capacitor includes a ceramic sintered body including a plurality of stacked ceramic layers, and first and second inner electrodes alternately arranged inside the ceramic sintered body to oppose each other in a stacking direction of the ceramic layers with the ceramic layers interposed between the adjacent first and second inner electrodes. Among the ceramic layers, a number N of the ceramic layers disposed between the first inner electrodes and the second inner electrodes is at least 232. A proportion of volume occupied by the first and second inner electrodes in the ceramic sintered body is at least about 0.37. A size of each of side gap portions is about 40 ?m or less.
    Type: Application
    Filed: June 8, 2012
    Publication date: October 4, 2012
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Daiki FUKUNAGA, Kenichi OKAJIMA, Yasuharu YAMASHITA, Naoto MURANISHI, Hideaki TANAKA
  • Publication number: 20120250220
    Abstract: A multilayer ceramic electronic component that is small, that has high electrical strength, and that is resistant to separation between ceramic layers includes a ceramic sintered body having a substantially rectangular parallelepiped shape and a plurality of first and second internal electrodes. The plurality of first and second internal electrodes are alternately arranged so as to face each other. The first and second internal electrodes are parallel or substantially parallel to first and second major surfaces. The first and second internal electrodes are exposed to at least one of the fifth and sixth surfaces and are not exposed to the third or fourth surface. No bends exist in any of the ends of each of the first and second internal electrodes adjacent to the third and fourth surfaces.
    Type: Application
    Filed: June 8, 2012
    Publication date: October 4, 2012
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yasuharu YAMASHITA, Kenichi OKAJIMA, Hideaki TANAKA, Naoto MURANISHI, Daiki FUKUNAGA, Nagato OMORI