Patents by Inventor Misato Mukono

Misato Mukono 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).

  • Patent number: 9252325
    Abstract: The present invention provides a method for producing a Group III nitride semiconductor light-emitting device wherein in the formation of a light-emitting layer by forming a well layer, a capping layer and a barrier layer, the well layer having superior flatness and crystallinity is formed while suppressing the occurrence of damage to the well layer. In formation of the light-emitting layer, pits are provided in the light-emitting layer so that a pit diameter D falls within a range of 120 nm to 250 nm. The light-emitting layer formation step comprises the steps of forming the barrier layer, forming the well layer, and forming the capping layer. The growth temperature of the barrier layer is higher by any temperature in a range of 65° C. to 135° C. than that of the well layer.
    Type: Grant
    Filed: November 29, 2013
    Date of Patent: February 2, 2016
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Misato Mukono, Ryo Nakamura
  • Publication number: 20140154828
    Abstract: The present invention provides a method for producing a Group III nitride semiconductor light-emitting device wherein in the formation of a light-emitting layer by forming a well layer, a capping layer and a barrier layer, the well layer having superior flatness and crystallinity is formed while suppressing the occurrence of damage to the well layer. In formation of the light-emitting layer, pits are provided in the light-emitting layer so that a pit diameter D falls within a range of 120 nm to 250 nm. The light-emitting layer formation step comprises the steps of forming the barrier layer, forming the well layer, and forming the capping layer. The growth temperature of the barrier layer is higher by any temperature in a range of 65° C. to 135° C. than that of the well layer.
    Type: Application
    Filed: November 29, 2013
    Publication date: June 5, 2014
    Applicant: TOYODA GOSEI CO., LTD.
    Inventors: Misato Mukono, Ryo Nakamura