Patents by Inventor Katsuya Komagata

Katsuya Komagata 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).

  • Glass key top, key top marking method, and method for manufacturing key unit using the same
    Patent number: 7531765
    Abstract: There are provided a glass key having a character or symbol marked in an enduring state and a marking method for creating such a glass key. A glass key has a character or a symbol marked on the surface or in the glass medium of the key top. A laser beam belonging to an infrared band having a wavelength of about 1100 nm or below, visible light band, or ultraviolet light band is intermittently applied while focused on the surface of the transparent glass key top or inside of the key top including the upper position, intermediate position, lower position, or other desired position, so that a plenty of fine cracks are formed as a set to represent a character or a symbol.
    Type: Grant
    Filed: November 27, 2003
    Date of Patent: May 12, 2009
    Assignee: Sunarrow Ltd.
    Inventor: Katsuya Komagata
  • Glass key top, key top marking method, and method for manufacturing key unit using the same
    Publication number: 20060258387
    Abstract: There are provided a glass key having a character or symbol marked in an enduring state and a marking method for creating such a glass key. A glass key has a character or a symbol marked on the surface or in the glass medium of the key top. A laser beam belonging to an infrared band having a wavelength of about 1100 nm or below, visible light band, or ultraviolet light band is intermittently applied while focused on the surface of the transparent glass key top or inside of the key top including the upper position, intermediate position, lower position, or other desired position, so that a plenty of fine cracks are formed as a set to represent a character or a symbol.
    Type: Application
    Filed: November 27, 2003
    Publication date: November 16, 2006
    Inventor: Katsuya Komagata