Patents by Inventor Hayato Kamioka

Hayato Kamioka 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 for producing hologram by pico-second laser
    Patent number: 7428085
    Abstract: Disclosed is a method of producing a hologram through a two-beam laser interfering exposure process, which comprises emitting a coherent laser light with a pulse width (?) ranging from greater than 900 femtoseconds to 100 picoseconds and a laser power of 10 ?J/pulse or more using a solid-state laser as a light source, dividing the pulses light from the laser into two beams, controlling the two beams temporally and spatially in such a manner that the two beam are converged on a surface of or inside a workpiece for recording a hologram while matching the respective converged spots of the two beams with one another temporally and spatially to create the interference therebetween so as to record a surface-relief hologram on the surface of the workpiece or an embedded hologram inside the workpiece in an irreversible manner.
    Type: Grant
    Filed: February 13, 2003
    Date of Patent: September 23, 2008
    Assignee: Japan Science and Technology Agency
    Inventors: Hideo Hosono, Masahiro Hirano, Kenichi Kawamura, Taisuke Miura, Hayato Kamioka
  • Method for producing hologram by pico-second laser
    Publication number: 20060019171
    Abstract: Disclosed is a method of producing a hologram through a two-beam laser interfering exposure process, which comprises emitting a coherent laser light with a pulse width (?) ranging from greater than 900 femtoseconds to 100 picoseconds and a laser power of 10 ?J/pulse or more using a solid-state laser as a light source, dividing the pulses light from the laser into two beams, controlling the two beams temporally and spatially in such a manner that the two beam are converged on a surface of or inside a workpiece for recording a hologram while matching the respective converged spots of the two beams with one another temporally and spatially to create the interference therebetween so as to record a surface-relief hologram on the surface of the workpiece or an embedded hologram inside the workpiece in an irreversible manner.
    Type: Application
    Filed: February 13, 2003
    Publication date: January 26, 2006
    Inventors: Hideo Hosono, Masahiro Hirano, Kenichi Kawamura, Taisuke Miura, Hayato Kamioka