Patents by Inventor Kouichi Kitaguro

Kouichi Kitaguro 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).

  • Semiconductor device
    Patent number: 9490200
    Abstract: Disclosed is a semiconductor device having a structure capable of reducing the self-inductance of internal wiring. The semiconductor device includes: a lower board having a lower conductor layer formed on the surface thereof; a switching element bonded to the lower conductor layer in an element bonding area; a terminal bonded to the lower conductor layer in a terminal bonding area; an upper board stacked on the lower board in a board bonding area between the element bonding area and the terminal bonding area, and having an upper conductor layer on the surface thereof; and a switching element connecting member which connects the switching element with the upper conductor layer.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: November 8, 2016
    Assignee: ROHM CO., LTD.
    Inventors: Katsuhiko Yoshihara, Masaru Ishii, Kouichi Kitaguro
  • SEMICONDUCTOR DEVICE
    Publication number: 20150371937
    Abstract: Disclosed is a semiconductor device having a structure capable of reducing the self-inductance of internal wiring. The semiconductor device includes: a lower board having a lower conductor layer formed on the surface thereof; a switching element bonded to the lower conductor layer in an element bonding area; a terminal bonded to the lower conductor layer in a terminal bonding area; an upper board stacked on the lower board in a board bonding area between the element bonding area and the terminal bonding area, and having an upper conductor layer on the surface thereof; and a switching element connecting member which connects the switching element with the upper conductor layer.
    Type: Application
    Filed: August 31, 2015
    Publication date: December 24, 2015
    Applicant: ROHM CO., LTD.
    Inventors: Katsuhiko YOSHIHARA, Masaru ISHII, Kouichi KITAGURO
  • Semiconductor device
    Patent number: 9147666
    Abstract: Disclosed is a semiconductor device having a structure capable of reducing the self-inductance of internal wiring. The semiconductor device includes: a lower board having a lower conductor layer formed on the surface thereof; a switching element bonded to the lower conductor layer in an element bonding area; a terminal bonded to the lower conductor layer in a terminal bonding area; an upper board stacked on the lower board in a board bonding area between the element bonding area and the terminal bonding area, and having an upper conductor layer on the surface thereof; and a switching element connecting member which connects the switching element with the upper conductor layer.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: September 29, 2015
    Assignee: ROHM CO., LTD.
    Inventors: Katsuhiko Yoshihara, Kouichi Kitaguro
  • SEMICONDUCTOR DEVICE
    Publication number: 20120256194
    Abstract: Disclosed is a semiconductor device having a structure capable of reducing the self-inductance of internal wiring. The semiconductor device includes: a lower board having a lower conductor layer formed on the surface thereof; a switching element bonded to the lower conductor layer in an element bonding area; a terminal bonded to the lower conductor layer in a terminal bonding area; an upper board stacked on the lower board in a board bonding area between the element bonding area and the terminal bonding area, and having an upper conductor layer on the surface thereof; and a switching element connecting member which connects the switching element with the upper conductor layer.
    Type: Application
    Filed: May 12, 2010
    Publication date: October 11, 2012
    Applicant: ROHM CO., LTD.
    Inventors: Katsuhiko Yoshihara, Masaru Ishii, Kouichi Kitaguro