Patents by Inventor Masaya Takayama

Masaya Takayama 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).

  • Liquid crystal display device, wiring substrate, and methods for fabricating the same
    Patent number: 6509942
    Abstract: The liquid crystal display device (100) of the present invention includes a reflection electrode (12) on a base substrate (10). The reflection electrode (12) has a double-layer structure of a first metal layer (16) containing Mo and a second metal layer (14) containing Al formed on the first metal layer (16). By forming the first metal layer (16) so that the maximum grain size of Mo at the surface is 60 nm or less, generation of pinholes in the second metal layer (14) is suppressed. This suppresses/prevents occurrence of partial loss of the second metal layer (14) at positions surrounding the pinholes in a process such as removal of a resist pattern with an alkaline remover.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: January 21, 2003
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Naoyuki Tanaka, Masaya Takayama
  • Liquid crystal display device, wiring substrate, and methods for fabricating the same
    Publication number: 20010015781
    Abstract: The liquid crystal display device (100) of the present invention includes a reflection electrode (12) on a base substrate (10). The reflection electrode (12) has a double-layer structure of a first metal layer (16) containing Mo and a second metal layer (14) containing Al formed on the first metal layer (16). By forming the first metal layer (16) so that the maximum grain size of Mo at the surface is 60 nm or less, generation of pinholes in the second metal layer (14) is suppressed. This suppresses/prevents occurrence of partial loss of the second metal layer (14) at positions surrounding the pinholes in a process such as removal of a resist pattern with an alkaline remover.
    Type: Application
    Filed: January 23, 2001
    Publication date: August 23, 2001
    Inventors: Naoyuki Tanaka, Masaya Takayama