Patents by Inventor Katsushi Yasuda

Katsushi Yasuda 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).

  • Crystal device
    Patent number: 10164604
    Abstract: A crystal device includes a package including a cavity formed therein, a thermistor disposed on a bottom surface of the cavity and integrated with the package, a crystal blank spaced apart from the thermistor in the cavity, and a lead coupled to the package so as to cover the cavity.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: December 25, 2018
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Won Sup Cho, Katsushi Yasuda, Sang Yeob Cha
  • Piezoelectric device package and method of fabricating the same
    Patent number: 9929337
    Abstract: A piezoelectric device package may include: a case having a plurality of terminals formed on a lower surface thereof; a piezoelectric device formed in the case; a temperature measuring device formed on the lower surface of the case and having a thin film form; and a cover member enclosing an upper portion of the case.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: March 27, 2018
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Soon Bum Lee, Sang Yeob Cha, Jong Pil Lee, Katsushi Yasuda
  • CRYSTAL DEVICE
    Publication number: 20160308508
    Abstract: A crystal device includes a package including a cavity formed therein, a thermistor disposed on a bottom surface of the cavity and integrated with the package, a crystal blank spaced apart from the thermistor in the cavity, and a lead coupled to the package so as to cover the cavity.
    Type: Application
    Filed: January 5, 2016
    Publication date: October 20, 2016
    Inventors: Won Sup CHO, Katsushi YASUDA, Sang Yeob CHA
  • DEVICE AND DEVICE PACKAGE
    Publication number: 20150351238
    Abstract: There are provided a device and a device package including a terminal electrically connected to a board and including one or more protrusion parts disposed on amounting surface on which the terminal is mounted on the board and the protrusion part is protruded from the mounting surface of the terminal.
    Type: Application
    Filed: December 9, 2014
    Publication date: December 3, 2015
    Inventors: Hyung Gon KIM, Katsushi YASUDA, Soon Bum LEE
  • PIEZOELECTRIC DEVICE PACKAGE AND METHOD OF FABRICATING THE SAME
    Publication number: 20140355646
    Abstract: A piezoelectric device package may include: a case having a plurality of terminals disposed on a lower surface thereof; a piezoelectric device disposed in the case; a temperature measuring device disposed on one surface of the piezoelectric device in the case and having a thin film form; and a cover member enclosing an upper portion of the case.
    Type: Application
    Filed: June 3, 2014
    Publication date: December 4, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jong Pil LEE, Sang Yeob CHA, Soon Bum LEE, Jong Beom JEON, Katsushi YASUDA
  • PIEZOELECTRIC DEVICE PACKAGE AND METHOD OF FABRICATING THE SAME
    Publication number: 20140355647
    Abstract: A piezoelectric device package may include: a case having a plurality of terminals formed on a lower surface thereof; a piezoelectric device formed in the case; a temperature measuring device formed on the lower surface of the case and having a thin film form; and a cover member enclosing an upper portion of the case.
    Type: Application
    Filed: June 3, 2014
    Publication date: December 4, 2014
    Inventors: Soon Bum Lee, Sang Yeob Cha, Jong Pil Lee, Katsushi Yasuda
  • Piezoelectric resonator and electrode structure thereof
    Patent number: 8222798
    Abstract: There are provided an electrode structure of a piezoelectric resonator and a piezoelectric resonator including the same. The piezoelectric resonator includes: a piezoelectric plate vibrated by an electrical signal; and first and second electrodes having first to fourth layers stacked on both surfaces thereof, wherein the first and third layers are made of at least one selected from the group consisting of Ti, Ni, Cr, an alloy including Ti and an alloy including Cr and the second and fourth layers are made of Ag or an alloy including Ag.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: July 17, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jong Beom Jeon, Katsushi Yasuda, Jong Pil Lee, Jang Ho Park
  • PIEZOELECTRIC RESONATOR AND ELECTRODE STRUCTURE THEREOF
    Publication number: 20110316392
    Abstract: There are provided an electrode structure of a piezoelectric resonator and a piezoelectric resonator including the same. The piezoelectric resonator includes: a piezoelectric plate vibrated by an electrical signal; and first and second electrodes having first to fourth layers stacked on both surfaces thereof, wherein the first and third layers are made of at least one selected from the group consisting of Ti, Ni, Cr, an alloy including Ti and an alloy including Cr and the second and fourth layers are made of Ag or an alloy including Ag.
    Type: Application
    Filed: September 1, 2011
    Publication date: December 29, 2011
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jong Beom JEON, Katsushi YASUDA, Jong Pil LEE, Jang Ho PARK
  • Piezoelectric vibrator and electrode structure of piezoelectric vibrator
    Patent number: 8035282
    Abstract: Provided are a piezoelectric vibrator and an electrode structure of the piezoelectric vibrator. The piezoelectric vibrator includes a piezoelectric material vibrating according to an electric signal, first and second electrode structures formed on the upper surface and the undersurface of the piezoelectric material, and including first to fourth layers sequentially stacked thereon, respectively. The first and third layers are formed of an alloy including Cr. The second and fourth layers are formed of Ag or an alloy including Ag.
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: October 11, 2011
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jong Beom Jeon, Katsushi Yasuda, Jong Pil Lee, Jang Ho Park
  • PIEZOELECTRIC VIBRATOR AND ELECTRODE STRUCTURE OF PIEZOELECTRIC VIBRATOR
    Publication number: 20100079038
    Abstract: Provided are a piezoelectric vibrator and an electrode structure of the piezoelectric vibrator. The piezoelectric vibrator includes a piezoelectric material vibrating according to an electric signal, first and second electrode structures formed on the upper surface and the undersurface of the piezoelectric material, and including first to fourth layers sequentially stacked thereon, respectively. The first and third layers are formed of an alloy including Cr. The second and fourth layers are formed of Ag or an alloy including Ag.
    Type: Application
    Filed: April 22, 2009
    Publication date: April 1, 2010
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jong Beom Jeon, Katsushi Yasuda, Jong Pil Lee, Jang Ho Park