Patents by Inventor Shuhei Katayama

Shuhei Katayama 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).

  • Plating film and plating film production method
    Patent number: 11912612
    Abstract: The present invention provides a plating film that exhibits good adhesion to glass substrates. The present invention is a plating film comprising an oxide layer, an electroless plating film, and an electrolytic copper plating film in this order.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: February 27, 2024
    Assignees: OKUNO CHEMICAL INDUSTRIES CO., LTD., PANASONIC HOLDINGS CORPORATION
    Inventors: Mayu Tsukuda, Toshimitsu Nagao, Junichi Katayama, Kazuya Shimada, Masahito Hayamizu, Toshihiko Sakata, Shuhei Fuku, Asuka Hirooka
  • Conductive paste for photovoltaic cell and method of producing photovoltaic cell element using the same
    Patent number: 8815637
    Abstract: A conductive paste for a photovoltaic cell and a method for producing the photovoltaic cell are disclosed. The conductive paste includes a silver powder, glass frit and a sintering inhibitor that suppresses sintering of the silver powder. The sintering inhibitor contains at least one substance selected from aluminum oxide, silicon oxide and silicon carbide. The method includes forming a first anti-reflective layer on a first region of a main surface of a semiconductor substrate; forming a second anti-reflection layer on a second region of the main surface which is different from the first region; coating the electrically conductive paste onto the second anti-reflective layer on the second anti-reflection layer; and forming a surface electrode in the second region by reacting the second anti-reflection layer with the electrically conductive paste at an elevated temperature.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: August 26, 2014
    Assignee: KYOCERA Corporation
    Inventors: Kotaro Umeda, Tomoko Yoshimi, Shuhei Katayama, Yoshio Miura, Toshihiro Iwaida, Takeshi Nakatani
  • CONDUCTIVE PASTE FOR USE IN PHOTOVOLTAIC CELL AND METHOD OF PRODUCING PHOTOVOLTAIC CELL ELEMENT USING THE SAME
    Publication number: 20130203206
    Abstract: A conductive paste for a photovoltaic cell and a method for producing the photovoltaic cell are disclosed. The conductive paste includes a silver powder, glass frit and a sintering inhibitor that suppresses sintering of the silver powder. The sintering inhibitor contains at least one substance selected from aluminum oxide, silicon oxide and silicon carbide. The method includes forming a first anti-reflective layer on a first region of a main surface of a semiconductor substrate; forming a second anti-reflection layer on a second region of the main surface which is different from the first region; coating the electrically conductive paste onto the second anti-reflective layer on the second anti-reflection layer; and forming a surface electrode in the second region by reacting the second anti-reflection layer with the electrically conductive paste at an elevated temperature.
    Type: Application
    Filed: September 30, 2011
    Publication date: August 8, 2013
    Applicant: KYOCERA CORPORATION
    Inventors: Kotaro Umeda, Tomoko Yoshimi, Shuhei Katayama, Yoshio Miura, Toshihiro Iwaida, Takeshi Nakatani