Patents by Inventor Yasuhisa Yamaji

Yasuhisa Yamaji 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: 7233382
    Abstract: This invention is to provide a liquid crystal module that enables a liquid crystal display (LCD) device to be further miniaturized. The liquid crystal module is configured to include at least two LCD devices and formed separately from each other, a first flexible substrate on which a semiconductor chip for driving the LCD devices and is mounted, and a second flexible substrate wherein signal transmission wiring is formed. One of the LCD devices and is electrically connected to the first flexible substrate, the other one of the LCD devices and is electrically connected to the second flexible substrate, and the first flexible substrate is electrically connected to the second flexible substrate.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: June 19, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasuhisa Yamaji, Yasunori Chikawa, Tsukasa Ohishi
  • Patent number: 7164205
    Abstract: A semiconductor carrier film includes (i) a base film having insulating property, (ii) a barrier layer provided on the base film, the barrier layer including nickel-chrome alloy as a main component, and (iii) a wire layer provided on the barrier layer, the wire layer being made of conductive material including copper, and a ratio of chrome in the barrier layer is 15% to 50% by weight. A semiconductor device is formed by bonding a semiconductor element to the wire layer. The semiconductor carrier film and the semiconductor device are suitable for attaining finer pitches and higher outputs, because insulating resistance between adjacent terminals is less likely to deteriorate then in conventional art even in the environment of high temperature and moisture.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: January 16, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasuhisa Yamaji, Kenji Toyosawa
  • Publication number: 20040262730
    Abstract: A semiconductor carrier film includes (i) a base film having insulating property, (ii) a barrier layer provided on the base film, the barrier layer including nickel-chrome alloy as a main component, and (iii) a wire layer provided on the barrier layer, the wire layer being made of conductive material including copper, and a ratio of chrome in the barrier layer is 15% to 50% by weight. A semiconductor device is formed by bonding a semiconductor element to the wire layer. The semiconductor carrier film and the semiconductor device are suitable for attaining finer pitches and higher outputs, because insulating resistance between adjacent terminals is less likely to deteriorate then in conventional art even in the environment of high temperature and moisture.
    Type: Application
    Filed: June 29, 2004
    Publication date: December 30, 2004
    Inventors: Yasuhisa Yamaji, Kenji Toyosawa
  • Publication number: 20040189926
    Abstract: This invention is to provide a liquid crystal module that enables a liquid crystal display (LCD) device to be further miniaturized. The liquid crystal module is configured to include at least two LCD devices and formed separately from each other, a first flexible substrate on which a semiconductor chip for driving the LCD devices and is mounted, and a second flexible substrate wherein signal transmission wiring is formed. One of the LCD devices and is electrically connected to the first flexible substrate, the other one of the LCD devices and is electrically connected to the second flexible substrate, and the first flexible substrate is electrically connected to the second flexible substrate.
    Type: Application
    Filed: March 5, 2004
    Publication date: September 30, 2004
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yasuhisa Yamaji, Yasunori Chikawa, Tsukasa Ohishi
  • Patent number: 6198165
    Abstract: A semiconductor device includes a wiring substrate having wiring and a solder resist for protecting the wiring, which are provided on an insulating substrate, a semiconductor chip which is mounted via the wiring protective film on the wiring substrate on a surface on the other side of the surface on which a circuit is provided to face a side of the wiring substrate on which the wiring is formed, and a wire for electrically connecting the circuit provided on the surface of the semiconductor chip and the wiring of the wiring substrate, and the surface of the solder resist and the semiconductor chip are firmly adhered to each other. In this semiconductor device, because the solder resist and the semiconductor chip are firmly adhered to each other, there arise no bubbles due to a spacing at a portion where the solder resist and the semiconductor chip are bonded with each other.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: March 6, 2001
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yasuhisa Yamaji, Yoshiki Sota, Yasuki Fukui