Patents by Inventor Suguru Oota

Suguru Oota 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: 7883998
    Abstract: It is to provide a vapor phase growth method in which an epitaxial layer consisting of a compound semiconductor such as InAlAs, can be grown, with superior reproducibility, on a semiconductor substrate such as Fe-doped InP. In vapor phase growth method for growing an epitaxial layer on a semiconductor substrate, a resistivity of the semiconductor substrate at a room temperature is previously measured, a set temperature of the substrate is controlled depending on the resistivity at the room temperature such that a surface temperature of the substrate is a desired temperature regardless of the resistivity of the semiconductor substrate, and the epitaxial layer is grown.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: February 8, 2011
    Assignee: Nippon Mining & Metals Co., Ltd.
    Inventors: Masashi Nakamura, Suguru Oota, Ryuichi Hirano
  • Publication number: 20070190757
    Abstract: It is to provide a vapor phase growth method in which an epitaxial layer consisting of a compound semiconductor such as InAlAs, can be grown, with superior reproducibility, on a semiconductor substrate such as Fe-doped InP. In vapor phase growth method for growing an epitaxial layer on a semiconductor substrate, a resistivity of the semiconductor substrate at a room temperature is previously measured, a set temperature of the substrate is controlled depending on the resistivity at the room temperature such that a surface temperature of the substrate is a desired temperature regardless of the resistivity of the semiconductor substrate, and the epitaxial layer is grown.
    Type: Application
    Filed: February 15, 2005
    Publication date: August 16, 2007
    Applicant: NIPPON MINING & METALS CO., LTD.
    Inventors: Masashi Nakamura, Suguru Oota, Ryuichi Hirano