Patents by Inventor Masanobu Izumina

Masanobu Izumina 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).

  • Flexible photovoltaic device
    Patent number: 5419781
    Abstract: A flexible photovoltaic device includes a flexible substrate and a photovoltaic device body. The flexible substrate is a metal foil or film provided with an electric insulating layer of a material having an electric conductivity of not more than 10.sup.-7 (.OMEGA..cm.).sup.-1 at the time of light impinging and selected from a heat resistant polymer, a metal oxide, a crystalline or amorphous silicon compound and an organometallic compound.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: May 30, 1995
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshihiro Hamakawa, Yoshihisa Tawada, Kazunori Tsuge, Masanobu Izumina
  • Flexible photovoltaic device
    Patent number: 5127964
    Abstract: A flexible photovoltaic device includes a flexible substrate and a photovoltaic device body. The flexible substrate is a metal foil or film provided with an electric insulating layer of a material having an electric conductivity of not more than 10.sup.-7 (.OMEGA..multidot.cm.).sup.-1 at the time of light impinging and selected from a heat resistant polymer, a metal oxide, a crystalline or amorphous silicon compound and an organometallic compound.
    Type: Grant
    Filed: February 8, 1991
    Date of Patent: July 7, 1992
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshihiro Hamakawa, Yoshihisa Tawada, Kazunori Tsuge, Masanobu Izumina
  • Flexible photovoltaic device
    Patent number: 4875943
    Abstract: A flexible photovoltaic device includes a flexible substrate and a photovoltaic device body. The flexible substrate is a metal foil or film provided with an electric insulating layer of a material having an electric conductivity of not more than 10.sup.-7 (.OMEGA..multidot.cm.).sup.-1 at the time of light impinging and selected from a heat resistant polymer, a metal oxide, a crystalline or amorphous silicon compound and an organometallic compound.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: October 24, 1989
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshihiro Hamakawa, Yoshihisa Tawada, Kazunori Tsuge, Masanobu Izumina
  • Flexible photovoltaic device
    Patent number: 4773942
    Abstract: A flexible photovoltaic device includes a flexible substrate and a photovoltaic device body. The flexible substrate is a metal foil or film provided with an electric insulating layer of a material having an electric conductivity of not more than 10.sup.-7 (.OMEGA..multidot.cm.).sup.-1 at the time of light impinging and made of an amorphous silicon nitride containing hydrogen.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: September 27, 1988
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshihiro Hamakawa, Yoshihisa Tawada, Kazunori Tsuge, Masanobu Izumina
  • Flexible photovoltaic device
    Patent number: 4612409
    Abstract: A flexible photovoltaic device includes a flexible substrate and a photovoltaic device body. The flexible substrate is a metal foil or film provided with an electric insulating layer of a material having an electric conductivity of not more than 10.sup.-7 (.OMEGA..multidot.cm.).sup.-1 during of light impingement and selected from a heat resistant polymer, a metal oxide, a crystalline or amorphous silicon compound, and an organometallic compound.
    Type: Grant
    Filed: November 4, 1982
    Date of Patent: September 16, 1986
    Assignee: Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
    Inventors: Yoshihiro Hamakawa, Yoshihisa Tawada, Kazunori Tsuge, Masanobu Izumina