Patents by Inventor Yoshito Akutagawa

Yoshito Akutagawa 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: 20050275741
    Abstract: An image pickup device is disclosed that has little deformation caused by thermal expansion of a transparent resin for sealing an image pickup element. The image pickup device includes an image pickup element having a light receiving surface, a micro-lens for condensing incident light to the image pickup element, a first transparent plate disposed on the light receiving surface of the image pickup element with the micro-lens in between, a transparent resin that seals the image pickup element and the first transparent plate, and a second transparent plate disposed on the transparent resin to face the first transparent plate.
    Type: Application
    Filed: October 20, 2004
    Publication date: December 15, 2005
    Applicant: FUJITSU LIMITED
    Inventors: Naoyuki Watanabe, Toshiyuki Honda, Yoshito Akutagawa, Susumu Moriya, Izumi Kobayashi
  • Publication number: 20050167812
    Abstract: A semiconductor device is provided that forms a three-dimensional semiconductor device having semiconductor devices stacked on one another. In this semiconductor device, a hole is formed in a silicon semiconductor substrate that has an integrated circuit unit and an electrode pad formed on a principal surface on the outer side. The hole is formed by etching, with the electrode pad serving as an etching stopper layer. An embedded electrode is formed in the hole. This embedded electrode serves to electrically lead the electrode pad to the principal surface on the bottom side of the silicon semiconductor substrate.
    Type: Application
    Filed: February 23, 2005
    Publication date: August 4, 2005
    Applicant: FUJITSU LIMITED
    Inventors: Eiji Yoshida, Takao Ohno, Yoshito Akutagawa, Koji Sawahata, Masataka Mizukoshi, Takao Nishimura, Akira Takashima, Mitsuhisa Watanabe