Patents by Inventor Akira Kunikawa

Akira Kunikawa 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).

  • Method and system for continuously manufacturing liquid crystal display device
    Patent number: 8541250
    Abstract: A method for continuously manufacturing a liquid crystal display device by bonding a polarizing film to a liquid crystal panel with a pressure-sensitive adhesive interposed therebetween, includes a polarizing film supply step including drawing an optical film laminate from the continuous roll placed in a dry environment, cutting at least a polarizing film and a pressure-sensitive adhesive, while leaving a carrier film uncut and feeding the sheet piece and the pressure-sensitive adhesive piece; a liquid crystal panel supply step including feeding the liquid crystal panel in a first humid environment having a relative humidity higher than that of the dry environment; and a bonding step including bonding the sheet piece to the liquid crystal panel with the pressure-sensitive adhesive piece interposed therebetween in a second humid environment having a relative humidity higher than that of the dry environment.
    Type: Grant
    Filed: October 7, 2011
    Date of Patent: September 24, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Satoshi Hirata, Seiji Kondo, Takaichi Amano, Tadashi Yokouchi, Akira Kunikawa
  • METHOD AND SYSTEM FOR CONTINUOUSLY MANUFACTURING LIQUID CRYSTAL DISPLAY DEVICE
    Publication number: 20120094410
    Abstract: A method for continuously manufacturing a liquid crystal display device by bonding a polarizing film to a liquid crystal panel with a pressure-sensitive adhesive interposed therebetween, includes a polarizing film supply step including drawing an optical film laminate from the continuous roll placed in a dry environment, cutting at least a polarizing film and a pressure-sensitive adhesive, while leaving a carrier film uncut and feeding the sheet piece and the pressure-sensitive adhesive piece; a liquid crystal panel supply step including feeding the liquid crystal panel in a first humid environment having a relative humidity higher than that of the dry environment; and a bonding step including bonding the sheet piece to the liquid crystal panel with the pressure-sensitive adhesive piece interposed therebetween in a second humid environment having a relative humidity higher than that of the dry environment.
    Type: Application
    Filed: October 7, 2011
    Publication date: April 19, 2012
    Applicant: NITTO DENKO CORPORATION
    Inventors: Satoshi Hirata, Seiji Kondo, Takaichi Amano, Tadashi Yokouchi, Akira Kunikawa