Patents by Inventor Minoru Osada

Minoru Osada 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).

  • Patent number: 11120944
    Abstract: A ceramic electronic component includes a pair of electrodes facing each other and a dielectric layer disposed between the pair of electrodes and including a plurality of ceramic nanosheets, where the plurality of ceramic nanosheets has a multimodal lateral size distribution expressed by at least two separated peaks, a method of manufacturing the same, and an electronic device including the ceramic electronic component.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: September 14, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Hyeon Cheol Park, Takayoshi Sasaki, Minoru Osada, Chan Kwak, Daejin Yang, Doh Won Jung, Youngjin Cho
  • Patent number: 11024462
    Abstract: A method of manufacturing a ceramic electronic component includes forming a dielectric layer including a plurality of ceramic nanosheets on a first electrode, treating the dielectric layer with an acid, and forming a second electrode on the dielectric layer, a ceramic electronic component, and an electronic device.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: June 1, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Yoon Chui Son, Minoru Osada, Takayoshi Sasaki, Chan Kwak, Doh Won Jung, Youngjin Cho
  • Publication number: 20200234888
    Abstract: A method of manufacturing a ceramic electronic component includes forming a dielectric layer including a plurality of ceramic nanosheets on a first electrode, treating the dielectric layer with an acid, and forming a second electrode on the dielectric layer, a ceramic electronic component, and an electronic device.
    Type: Application
    Filed: April 1, 2020
    Publication date: July 23, 2020
    Inventors: Yoon Chul SON, Minoru OSADA, Takayoshi SASAKI, Chan KWAK, Doh Won JUNG, Youngjin CHO
  • Patent number: 10650977
    Abstract: A method of manufacturing a ceramic electronic component includes forming a dielectric layer including a plurality of ceramic nanosheets on a first electrode, treating the dielectric layer with an acid, and forming a second electrode on the dielectric layer, a ceramic electronic component, and an electronic device.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: May 12, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Yoon Chul Son, Minoru Osada, Takayoshi Sasaki, Chan Kwak, Doh Won Jung, Youngjin Cho
  • Publication number: 20190131077
    Abstract: A method of manufacturing a ceramic electronic component includes forming a dielectric layer including a plurality of ceramic nanosheets on a first electrode, treating the dielectric layer with an acid, and forming a second electrode on the dielectric layer, a ceramic electronic component, and an electronic device.
    Type: Application
    Filed: October 19, 2018
    Publication date: May 2, 2019
    Inventors: Yoon Chul SON, Minoru OSADA, Takayoshi SASAKI, Chan KWAK, Doh Won JUNG, Youngjin CHO
  • Publication number: 20190131075
    Abstract: A ceramic electronic component includes a pair of electrodes facing each other and a dielectric layer disposed between the pair of electrodes and including a plurality of ceramic nanosheets, where the plurality of ceramic nanosheets has a multimodal lateral size distribution expressed by at least two separated peaks, a method of manufacturing the same, and an electronic device including the ceramic electronic component.
    Type: Application
    Filed: October 24, 2018
    Publication date: May 2, 2019
    Inventors: Hyeon Cheol PARK, Takayoshi SASAKI, Minoru OSADA, Chan KWAK, Daejin YANG, Doh Won JUNG, Youngjin CHO
  • Patent number: 9543500
    Abstract: At least two types of dielectric materials such as oxide nanosheets having a layered perovskite structure that differ from each other are laminated, and the nanosheets are bonded to each other via an ionic material, thereby producing a superlattice structure-having ferroelectric thin film. Having the layered structure, the film can exhibit ferroelectricity as a whole, though not using a ferroelectric material therein. Accordingly, there is provided a ferroelectric film based on a novel principle, which is favorable for ferroelectric memories and others and which is free from a size effect even though extremely thinned.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: January 10, 2017
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Minoru Osada, Takayoshi Sasaki
  • Patent number: 9324497
    Abstract: A thin film capacitor includes a substrate and a dielectric thin film element formed on the substrate. The substrate can include an Si plate, an SiO2 film on the Si plate, and a Ti film formed on the SiO2 film. The dielectric thin film element includes a lower electrode, a dielectric thin film on the lower electrode, and an upper electrode formed on the dielectric thin film. The dielectric thin film is a thin film formed of a nanosheet, and a void portion of the dielectric thin film is filled with a p-type conductive organic polymer. Ti0.87O2, Ca2Nb3O10 or the like, is used as a dielectric material to form a major component of the nanosheet. As the p-type conductive organic polymer, polypyrrole, polyaniline, polyethylene dioxythiophene or the like, is suitable.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: April 26, 2016
    Assignees: MURATA MANUFACTURING CO., LTD., NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Takafumi Okamoto, Minoru Osada, Takayoshi Sasaki
  • Patent number: 9082551
    Abstract: A high dielectric nanosheet laminate is produced by laminating nanosheets, each of which has a thickness of 10 nm or less and is formed of an oxide that has a perovskite structure wherein at least four NbO6 octahedrons, TaO6 octahedrons or TiO6 octahedrons are included in a unit lattice. Consequently, the high dielectric nanosheet laminate is capable of achieving a high dielectric constant and a satisfactory insulation property, which are preferable for high dielectric nanosheet multilayer capacitors or the like, at the same time even if formed very thin.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: July 14, 2015
    Assignee: NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Minoru Osada, Yasuo Ebina, Takayoshi Sasaki
  • Patent number: 9074938
    Abstract: A substrate for surface enhanced Raman spectroscopy analysis (SERS) comprises a ferroelectric single crystal having polarization-inverted patterns of spontaneous polarizations including polarization-inverted portions and non-inverted polarization portions, and metallic dots positioned at only either one polarized surfaces of the polarization-inverted portions and the non-inverted polarization portions. The provided SERS substrate produces a high enhancement effect. A microfluidic device incorporating the SERS substrate is also provided.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: July 7, 2015
    Assignees: University of Washington, National Institute for Materials Science
    Inventors: Xiaoyan Liu, Kenji Kitamura, Minoru Osada, Takahiro Nagata, Guozhong Cao
  • Patent number: 8828488
    Abstract: To provide a method for producing a thin film consisting of nanosheet monolayer film(s) and use of the thin film obtained thereby. The method for producing a thin film consisting of nanosheet monolayer film(s) by a spin coat method according to the invention comprises a step for preparing an organic solvent sol formed by allowing nanosheets obtained by the exfoliation of an inorganic layered compound to be dispersed in an organic solvent; and a step for dropping the organic solvent sol onto a substrate and rotating the substrate using a spin coater. Preferably, the nanosheet size, the organic solvent sol concentration and the spin coater rotation speed are controlled.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: September 9, 2014
    Assignee: National Institute For Materials Science
    Inventors: Takayoshi Sasaki, Kazuko Saruwatari, Kazuaki Matsuba, Kousyo Akatsuka, Yasuo Ebina, Minoru Osada
  • Publication number: 20140150966
    Abstract: A high dielectric nanosheet laminate is produced by laminating nanosheets, each of which has a thickness of 10 nm or less and is formed of an oxide that has a perovskite structure wherein at least four NbO6 octahedrons, TaO6 octahedrons or TiO6 octahedrons are included in a unit lattice. Consequently, the high dielectric nanosheet laminate is capable of achieving a high dielectric constant and a satisfactory insulation property, which are preferable for high dielectric nanosheet multilayer capacitors or the like, at the same time even if formed very thin.
    Type: Application
    Filed: May 18, 2012
    Publication date: June 5, 2014
    Inventors: Minoru Osada, Yasuo Ebina, Takayoshi Sasaki
  • Publication number: 20140036410
    Abstract: A thin film capacitor includes a substrate and a dielectric thin film element formed on the substrate. The substrate can include an Si plate, an SiO2 film on the Si plate, and a Ti film formed on the SiO2 film. The dielectric thin film element includes a lower electrode, a dielectric thin film on the lower electrode, and an upper electrode formed on the dielectric thin film. The dielectric thin film is a thin film formed of a nanosheet, and a void portion of the dielectric thin film is filled with a p-type conductive organic polymer. Ti0.87O2, Ca2Nb3O10 or the like, is used as a dielectric material to form a major component of the nanosheet. As the p-type conductive organic polymer, polypyrrole, polyaniline, polyethylene dioxythiophene or the like, is suitable.
    Type: Application
    Filed: October 10, 2013
    Publication date: February 6, 2014
    Applicants: National Institute for Materials Science, Murata Manufacturing Co., Ltd.
    Inventors: Toshihiro Okamatsu, Minoru Osada, Takayoshi Sasaki
  • Publication number: 20140002816
    Abstract: A substrate for surface enhanced Raman spectroscopy analysis (SERS) comprises a ferroelectric single crystal having polarization-inverted patterns of spontaneous polarizations including polarization-inverted portions and non-inverted polarization portions, and metallic dots positioned at only either one polarized surfaces of the polarization-inverted portions and the non-inverted polarization portions. The provided SERS substrate produces a high enhancement effect. A microfluidic device incorporating the SERS substrate is also provided.
    Type: Application
    Filed: June 27, 2013
    Publication date: January 2, 2014
    Applicants: National Institute for Materials Science, University of Washington through its Center for Commercialization
    Inventors: Xiaoyan Liu, Kenji Kitamura, Minoru Osada, Takahiro Nagata, Guozhong Cao
  • Publication number: 20130244016
    Abstract: At least two types of dielectric materials such as oxide nanosheets having a layered perovskite structure that differ from each other are laminated, and the nanosheets are bonded to each other via an ionic material, thereby producing a superlattice structure-having ferroelectric thin film. Having the layered structure, the film can exhibit ferroelectricity as a whole, though not using a ferroelectric material therein. Accordingly, there is provided a ferroelectric film based on a novel principle, which is favorable for ferroelectric memories and others and which is free from a size effect even though extremely thinned.
    Type: Application
    Filed: October 4, 2011
    Publication date: September 19, 2013
    Inventors: Minoru Osada, Takayoshi Sasaki
  • Publication number: 20130101829
    Abstract: To provide a method for producing a thin film consisting of nanosheet monolayer film(s) and use of the thin film obtained thereby. The method for producing a thin film consisting of nanosheet monolayer film(s) by a spin coat method according to the invention comprises a step for preparing an organic solvent sol formed by allowing nanosheets obtained by the exfoliation of an inorganic layered compound to be dispersed in an organic solvent; and a step for dropping the organic solvent sol onto a substrate and rotating the substrate using a spin coater. Preferably, the nanosheet size, the organic solvent sol concentration and the spin coater rotation speed are controlled.
    Type: Application
    Filed: August 22, 2012
    Publication date: April 25, 2013
    Inventors: Takayoshi SASAKI, Kazuko SARUWATARI, Kazuaki MATSUBA, Kousyo AKATSUKA, Yasuo EBINA, Minoru OSADA
  • Publication number: 20120292554
    Abstract: Provided is an electromagnetic wave absorbent material comprising a magnetic film as the main constituent thereof. The magnetic film comprises a titania nanosheet where a 3d magnetic metal element is substituted at the titanium lattice position. The electromagnetic wave absorbent material stably and continuously exhibits electromagnetic wave absorption performance in a range of from 1 to 15 GHz band and is useful as mobile telephones, wireless LANs and other mobile electronic instruments. The absorbent material can be fused with a transparent medium and is applicable to transparent electronic devices such as large-sized liquid crystal TVs, electronic papers, etc.
    Type: Application
    Filed: July 27, 2012
    Publication date: November 22, 2012
    Inventors: Minoru OSADA, Takayoshi Sasaki
  • Patent number: 8313846
    Abstract: A magnetic artificial superlattice is composed of laminated thin films including two or more kinds of magnetic flaky particles (magnetic titania nanosheets) obtained by exfoliation of a layer titanium oxide in which Ti atoms in the lattice have been substituted with magnetic elements.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: November 20, 2012
    Assignee: National Institute of Materials Science
    Inventors: Minoru Osada, Takayoshi Sasaki
  • Patent number: 8184426
    Abstract: Provided is a dielectric element comprising a dielectric thin film formed of a layer of perovskite nanosheets. The dielectric element has the advantages of inherent properties and high-level texture and structure controllability of the perovskite nanosheets, therefore realizing both a high dielectric constant and good insulating properties in a nano-region.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: May 22, 2012
    Assignee: National Institute for Materials Science
    Inventors: Minoru Osada, Yasuo Ebina, Takayoshi Sasaki
  • Publication number: 20110183133
    Abstract: Provided is an electromagnetic wave absorbent material comprising a magnetic film as the main constituent thereof. The magnetic film comprises a titania nanosheet where a 3d magnetic metal element is substituted at the titanium lattice position. The electromagnetic wave absorbent material stably and continuously exhibits electromagnetic wave absorption performance in a range of from 1 to 15 GHz band and is useful as mobile telephones, wireless LANs and other mobile electronic instruments. The absorbent material can be fused with a transparent medium and is applicable to transparent electronic devices such as large-sized liquid crystal TVs, electronic papers, etc.
    Type: Application
    Filed: June 10, 2009
    Publication date: July 28, 2011
    Inventors: Minoru Osada, Takayoshi Sasaki