Patents by Inventor Yuutaro IWASA

Yuutaro IWASA 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).

  • Solar cell element and solar cell module
    Patent number: 10622500
    Abstract: A solar cell element includes a semiconductor substrate, a passivation layer, and a collecting electrode. The semiconductor substrate has a first surface and a second surface that faces in an opposite direction to the first surface. The passivation layer is positioned on the second surface. The collecting electrode is positioned on or above the passivation layer. The passivation layer has a plurality of first holes each penetrating through the passivation layer. The collecting electrode includes a plurality of connection portions and a plurality of second holes. The plurality of connection portions are positioned in connection with the second surface in the plurality of first holes. Each of the plurality of second holes penetrates through the collecting electrode and includes a curved peripheral edge portion in plan view.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: April 14, 2020
    Assignee: KYOCERA CORPORATION
    Inventor: Yuutaro Iwasa
  • SOLAR CELL ELEMENT AND SOLAR CELL MODULE
    Publication number: 20190051778
    Abstract: A solar cell element includes a semiconductor substrate, a passivation layer, and a collecting electrode. The semiconductor substrate has a first surface and a second surface that faces in an opposite direction to the first surface. The passivation layer is positioned on the second surface. The collecting electrode is positioned on or above the passivation layer. The passivation layer has a plurality of first holes each penetrating through the passivation layer. The collecting electrode includes a plurality of connection portions and a plurality of second holes. The plurality of connection portions are positioned in connection with the second surface in the plurality of first holes. Each of the plurality of second holes penetrates through the collecting electrode and includes a curved peripheral edge portion in plan view.
    Type: Application
    Filed: July 24, 2018
    Publication date: February 14, 2019
    Inventor: Yuutaro IWASA