Patents by Inventor YUTAKA HOSHINA

YUTAKA HOSHINA 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).

  • Publication number: 20240302305
    Abstract: A data analysis device includes an input unit that receives a measured value of an optoelectronic signal from a photoelectron spectroscopic device measuring the optoelectronic signal generated from a sample by photoelectron spectroscopy and an analysis unit that analyzes the depth profile of the sample by minimizing a sum of square deviations between a theoretical value of the optoelectronic signal and the measured value of the optoelectronic signal using the theoretical value of the optoelectronic signal when the sample is modeled into a multilayer body including a plurality of layers. The analysis unit calculates a relative concentration so as to satisfy a maximum smoothness condition that the relative concentration of the chemical species of the sample smoothly changes in the plurality of layers of the multilayer body in minimizing the sum of square deviations.
    Type: Application
    Filed: April 28, 2021
    Publication date: September 12, 2024
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Yutaka HOSHINA, Kazuya TOKUDA, Yoshihiro SAITO
  • Publication number: 20190115486
    Abstract: A back contact solar battery cell includes a first-conductivity-type impurity-containing region and a second-conductivity-type impurity-containing region formed in a first surface of a semiconductor substrate of a first or second conductivity type; and a silicon nitride film on a second surface of the semiconductor substrate The silicon nitride film has a nitrogen mass ratio of 0.38 or less.
    Type: Application
    Filed: February 27, 2017
    Publication date: April 18, 2019
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: YUTAKA HOSHINA, KOHEI SAWADA, HIROSHI MATSUBARA