Patents by Inventor Hajime Nagata

Hajime Nagata 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).

  • Microcontact printed thin film capacitors
    Patent number: 8828480
    Abstract: The invention relates to thin film single layers, electronic components such as multilayer capacitors which utilize thin film layers, and to their methods of manufacture. Chemical solution deposition and microcontact printing of dielectric and electrode layers are disclosed. High permittivity BaTiO3 multilayer thin film capacitors are prepared on Ni foil substrates by microcontact printing and by chemical solution deposition. Multilayer capacitors with BaTiO3 dielectric layers and LaNiO3 internal electrodes are prepared, enabling dielectric layer thicknesses of 1 ??m or less. Microcontact printing of precursor solutions of the dielectric and electrode layers is used.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: September 9, 2014
    Assignee: The Penn State Research Foundation
    Inventors: Susan Trolier McKinstry, Clive A. Randall, Hajime Nagata, Pascal G. Pinceloup, James J. Baeson, Daniel J. Skamser, Michael S. Randall, Azizuddin Tajuddin
  • Piezoelectric composition, piezoelectric ceramic, transducer, and ultrasonic motor
    Patent number: 8564180
    Abstract: A piezoelectric composition includes a compound represented by a general expression Bi4Ti3O12—SrBi4Ti4O15 as a main component; and Mn or a Mn compound as an additive. A Mn content is less than 1.0% by mass based on a main component amount.
    Type: Grant
    Filed: March 2, 2011
    Date of Patent: October 22, 2013
    Assignee: TDK Corporation
    Inventors: Masahito Furukawa, Daisuke Tanaka, Tadashi Takenaka, Hajime Nagata, Yuji Hiruma
  • Microcontact printed thin film capacitors
    Patent number: 8414962
    Abstract: The invention relates to thin film single layers, electronic components such as multilayer capacitors which utilize thin film layers, and to their methods of manufacture. Chemical solution deposition and microcontact printing of dielectric and electrode layers are disclosed. High permittivity BaTiO3 multilayer thin film capacitors are prepared on Ni foil substrates by microcontact printing and by chemical solution deposition. Multilayer capacitors with BaTiO3 dielectric layers and LaNiO3 internal electrodes are prepared, enabling dielectric layer thicknesses of 1 ?m or less. Microcontact printing of precursor solutions of the dielectric and electrode layers is used.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: April 9, 2013
    Assignee: The Penn State Research Foundation
    Inventors: Susan Trolier McKinstry, Clive A. Randall, Hajime Nagata, Pascal I. Pinceloup, James J. Beeson, Daniel J. Skamser, Michael S. Randall, Azizuddin Tajuddin
  • Piezoelectric ceramic and piezoelectric ceramic composition
    Patent number: 8231803
    Abstract: A piezoelectric ceramic 10 composed mainly of a three-component solid solution represented by the following general formula (1), wherein x, y and z in general formula (1) satisfy the following formulas (2), (3), (4) and (5). x(Bi1/2Na1/2)TiO3?y(Bi1/2Li1/2)TiO3?z(Bi1/2K1/2)TiO3??(1) 0.80?x?0.96??(2) 0.02?y?0.08??(3) 0.01?z?0.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: July 31, 2012
    Assignee: TDK Corporation
    Inventors: Masahito Furukawa, Daisuke Tanaka, Masakazu Hirose, Tadashi Takenaka, Hajime Nagata, Yuji Hiruma
  • PIEZOELECTRIC COMPOSITION, PIEZOELECTRIC CERAMIC, TRANSDUCER, AND ULTRASONIC MOTOR
    Publication number: 20110241483
    Abstract: A piezoelectric composition includes a compound represented by a general expression Bi4Ti3O12—SrBi4Ti4O15 as a main component; and Mn or a Mn compound as an additive. A Mn content is less than 1.0% by mass based on a main component amount.
    Type: Application
    Filed: March 2, 2011
    Publication date: October 6, 2011
    Applicant: TDK CORPORATION
    Inventors: Masahito FURUKAWA, Daisuke TANAKA, Tadashi TAKENAKA, Hajime NAGATA, Yuji HIRUMA
  • PIEZOELECTRIC CERAMIC AND PIEZOELECTRIC CERAMIC COMPOSITION
    Publication number: 20110017936
    Abstract: A piezoelectric ceramic 10 composed mainly of a three-component solid solution represented by the following general formula (1), wherein x, y and z in general formula (1) satisfy the following formulas (2), (3), (4) and (5). x(Bi1/2Na1/2)TiO3-y(Bi1/2Li1/2)TiO3-z(Bi1/2K1/2)TiO3??(1) 0.80?x?0.96??(2) 0.02?y?0.08??(3) 0.01?z?0.
    Type: Application
    Filed: March 11, 2009
    Publication date: January 27, 2011
    Inventors: Masahito Furukawa, Daisuke Tanaka, Masakazu Hirose, Tadashi Takenaka, Hajime Nagata, Yuji Hiruma
  • Microcontact printed thin film capacitors
    Publication number: 20070172592
    Abstract: The invention relates to thin film single layers, electronic components such as multilayer capacitors which utilize thin film layers, and to their methods of manufacture. Chemical solution deposition and microcontact printing of dielectric and electrode layers are disclosed. High permittivity BaTiO3 multilayer thin film capacitors are prepared on Ni foil substrates by microcontact printing and by chemical solution deposition. Multilayer capacitors with BaTiO3 dielectric layers and LaNiO3 internal electrodes are prepared, enabling dielectric layer thicknesses of 1 ?m or less. Microcontact printing of precursor solutions of the dielectric and electrode layers is used.
    Type: Application
    Filed: October 28, 2005
    Publication date: July 26, 2007
    Applicants: The Penn State Research Foundation
    Inventors: Susan Trolier-McKinstry, Clive Randall, Hajime Nagata, Pascal Pinceloup, James Beeson, Daniel Skamser, Michael Randall, Azizuddin Tajuddin