Patents by Inventor Tadasuke Takahashi

Tadasuke Takahashi 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).

  • Light emitting element, method for manufacturing the light emitting element, optical element and method for manufacturing the optical element
    Patent number: 8710524
    Abstract: Fine asperities are simply formed in the surface of a light emission surface to improve an luminous efficiency of a light emitting element. An LED element 10 is prepared as an example of a luminous body, and a thermally deformable heat mode recording material layer 12 is formed in the light emission surface 18 of the LED element 10. The recording material layer 12 is then illuminated with condensed light so that a plurality of recessed portions 15 are formed at a pitch of 0.01-100 times a center wavelength of the light emitted from the LED element 10.
    Type: Grant
    Filed: March 5, 2008
    Date of Patent: April 29, 2014
    Assignee: Fujifilm Corporation
    Inventors: Yoshihisa Usami, Tadasuke Takahashi, Tetsuya Watanabe
  • LIGHT EMITTING ELEMENT, METHOD FOR MANUFACTURING THE LIGHT EMITTING ELEMENT, OPTICAL ELEMENT AND METHOD FOR MANUFACTURING THE OPTICAL ELEMENT
    Publication number: 20100090236
    Abstract: Fine asperities are simply formed in the surface of a light emission surface to improve an luminous efficiency of a light emitting element. An LED element 10 is prepared as an example of a luminous body, and a thermally deformable heat mode recording material layer 12 is formed in the light emission surface 18 of the LED element 10. The recording material layer 12 is then illuminated with condensed light so that a plurality of recessed portions 15 are formed at a pitch of 0.01-100 times a center wavelength of the light emitted from the LED element 10.
    Type: Application
    Filed: March 5, 2007
    Publication date: April 15, 2010
    Applicant: FUJIFILM CORPORATION
    Inventors: Yoshihisa Usami, Tadasuke Takahashi, Tetsuya Watanabe