Patents by Inventor Takuya Konno

Takuya Konno 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: 20100213433
    Abstract: A non-volatile semiconductor storage device includes memory cells, each of which is arranged at an intersection between a first wiring and a second wiring intersecting each other. Each of the memory cells includes: a first electrode layer; a plurality of variable resistance layers laminated on the first electrode layer and functioning as variable resistance elements; a second electrode layer formed between the variable resistance layers; and a third electrode layer formed on the top one of the variable resistance layers. Each of the variable resistance layers is composed of a material containing carbon.
    Type: Application
    Filed: July 24, 2009
    Publication date: August 26, 2010
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Kazuhiko YAMAMOTO, Yasuyuki BABA, Takuya KONNO
  • Publication number: 20100210066
    Abstract: An electrode paste for a solar cell comprising electrically conductive particles, lead-free glass frit, a resin binder and zinc oxide particles, wherein zinc oxide particles having a specific surface area of 6 m2/g or less are contained at 10% by weight or more based on the total amount of zinc oxide.
    Type: Application
    Filed: April 29, 2010
    Publication date: August 19, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Takuya Konno
  • Patent number: 7767254
    Abstract: In a paste for a solar cell light-receiving surface electrode including silver particles, glass frit, resin binder, and thinner, silver particles with a specific surface of 0.20-0.60 m2/g are used as the silver particles. The silver particles are preferably included at 80 mass % or more to the total amount of silver particles being included in the paste.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: August 3, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Takuya Konno, Takashi Kitagaki, Hiroki Kojo
  • Publication number: 20100175754
    Abstract: Disclosed is an electrically conducting paste comprising a silver powder, a glass frit, a resin binder and a sintering inhibitor. The paste is used in the manufacture of solar cell electrodes by applying the electrically conducting paste to a substrate and then firing of the coated substrate.
    Type: Application
    Filed: March 24, 2010
    Publication date: July 15, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Takuya Konno
  • Patent number: 7736545
    Abstract: An electrode paste for a solar cell comprising electrically conductive particles, lead-free glass frit, a resin binder and zinc oxide particles, wherein zinc oxide particles having a specific surface area of 6 m2/g or less are contained at 10% by weight or more based on the total amount of zinc oxide.
    Type: Grant
    Filed: January 19, 2009
    Date of Patent: June 15, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Takuya Konno
  • Patent number: 7731868
    Abstract: The present invention is directed to a thick film conductive composition comprising: a) electrically conductive silver powder; b) ZnO powder; c) lead-free glass frits wherein based on total glass frits: Bi2O3: >5 mol %, B2O3: <15 mol %, BaO: <5 mol %, SrO: <5 mol %, Al2O3: <5 mol %; and d) organic medium, wherein (the content of ZnO/the content of the silver powder)×100 is more than 2.5.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: June 8, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Takuya Konno
  • Patent number: 7728379
    Abstract: A semiconductor device includes: a semiconductor layer; an insulating film provided on the semiconductor layer; and a charge storage layer provided on the insulating film. The semiconductor layer has a channel formation region in its surface portion. The insulating film contains silicon, germanium, and oxygen. The charge storage layer is capable of storing charge supplied from the semiconductor layer through the insulating film. A method of manufacturing a semiconductor device includes: forming a silicon oxide film on a surface of a semiconductor layer; introducing germanium into the silicon oxide film; forming an insulating film containing silicon, germanium, and oxygen by heat treatment under oxidizing atmosphere; and forming a charge storage layer on the insulating film, the charge storage layer being capable of storing charge supplied from the semiconductor layer through the insulating layer.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: June 1, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takuya Konno, Yoshio Ozawa, Tetsuya Kai, Yasushi Nakasaki, Yuuichiro Mitani
  • Patent number: 7727424
    Abstract: Disclosed is an electrically conducting paste comprising a silver powder, a glass frit, a resin binder and a sintering inhibitor. The paste is used in the manufacture of solar cell electrodes by applying the electrically conducting paste to a substrate and then firing of the coated substrate.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: June 1, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Takuya Konno
  • Publication number: 20100126565
    Abstract: To obtain low resistance and high adhesion at the same time in a solar cell electrode, a conductive paste is offered. A conductive paste for solar cell electrode contains conductive powder, organic medium and glass frit which is mixture of more than one kind of glass frit such as a mixture of glass frit containing at least PbO and glass frit containing at least Bi2O3.
    Type: Application
    Filed: November 19, 2009
    Publication date: May 27, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Norihiko Takeda, Takuya Konno
  • Patent number: 7718093
    Abstract: The electroconductive thick film paste of the present invention is a silver electroconductive paste, which includes silver particles, glass particles, and an organic vehicle, and is used in an electrode for connecting a back face terminal on the silicon substrate of a solar cell, and is characterized by the fact that the average particle diameter of said silver particles is 3.0-15.0 ?m. The present invention is further directed to an electrode formed from the composition as detailed above and a solar cell comprising said electrode.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: May 18, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Takuya Konno
  • Publication number: 20100078603
    Abstract: In a paste for a solar cell light-receiving surface electrode including silver particles, glass frit, resin binder, and thinner, silver particles with a specific surface of 0.20-0.60 m2/g are used as the silver particles. The silver particles are preferably included at 80 mass % or more to the total amount of silver particles being included in the paste.
    Type: Application
    Filed: December 4, 2009
    Publication date: April 1, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Takuya Konno, Takashi Kitagaki, Hiroki Kojo
  • Patent number: 7648730
    Abstract: In a paste for a solar cell light-receiving surface electrode including silver particles, glass frit, resin binder, and thinner, silver particles with a specific surface of 0.20-0.60 m2/g are used as the silver particles. The silver particles are preferably included at 80 mass % or more to the total amount of silver particles being included in the paste.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: January 19, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Takuya Konno, Takashi Kitagaki, Hiroki Kojo
  • Publication number: 20090317940
    Abstract: In a paste for a solar cell light-receiving surface electrode including silver particles, glass frit, resin binder, and thinner, silver particles with a specific surface of 0.20-0.60 m2/g are used as the silver particles. The silver particles are preferably included at 80 mass % or more to the total amount of silver particles being included in the paste.
    Type: Application
    Filed: August 26, 2009
    Publication date: December 24, 2009
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Takuya Konno, Takashi Kitagaki, Hiroki Kojo
  • Publication number: 20090301554
    Abstract: The invention relates to glass compositions useful in conductive pastes for silicon semiconductor devices and photovoltaic cells. The thick film conductor compositions include one or more electrically functional powders and one or more glass frits dispersed in an organic medium. The thick film compositions may also include one or more additive(s). Exemplary additives may include metals, metal oxides or any compounds that can generate these metal oxides during firing.
    Type: Application
    Filed: June 8, 2009
    Publication date: December 10, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Takuya Konno, Brian J. Laughlin, Hisashi Matsuno
  • Publication number: 20090301553
    Abstract: The invention relates to glass compositions useful in conductive pastes for silicon semiconductor devices and photovoltaic cells. The thick film conductor compositions include one or more electrically functional powders and one or more glass frits dispersed in an organic medium. The thick film compositions may also include one or more additive(s). Exemplary additives may include metals, metal oxides or any compounds that can generate these metal oxides during firing.
    Type: Application
    Filed: June 8, 2009
    Publication date: December 10, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Takuya Konno, Brian J. Laughlin, Hisashi Matsuno
  • Publication number: 20090298283
    Abstract: Embodiments of the invention relate to a silicon semiconductor device, and a conductive paste for use in the front side of a solar cell device.
    Type: Application
    Filed: May 28, 2009
    Publication date: December 3, 2009
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Hideki Akimoto, Takuya Konno, Giovanna Laudisio, Patricia J. Ollivier, Michael Rose, Jerome David Smith, Richard John Sheffield Young
  • Publication number: 20090126797
    Abstract: An electrode paste for a solar cell comprising electrically conductive particles, lead-free glass frit, a resin binder and zinc oxide particles, wherein zinc oxide particles having a specific surface area of 6 m2/g or less are contained at 10% by weight or more based on the total amount of zinc oxide.
    Type: Application
    Filed: January 19, 2009
    Publication date: May 21, 2009
    Inventor: TAKUYA KONNO
  • Patent number: 7485245
    Abstract: An electrode paste for a solar cell comprising electrically conductive particles, lead-free glass frit, a resin binder and zinc oxide particles, wherein zinc oxide particles having a specific surface area of 6 m2/g or less are contained at 10% by weight or more based on the total amount of zinc oxide.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: February 3, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Takuya Konno
  • Publication number: 20090001328
    Abstract: In a paste for a solar cell light-receiving surface electrode including silver particles, glass frit, resin binder, and thinner, silver particles with a specific surface of 0.20-0.60 m2/g are used as the silver particles. The silver particles are preferably included at 80 mass % or more to the total amount of silver particles being included in the paste.
    Type: Application
    Filed: August 1, 2006
    Publication date: January 1, 2009
    Inventors: Takuya Konno, Takashi Kitagaki, Hiroki Kojo
  • Publication number: 20080254567
    Abstract: The present invention is directed to a thick film conductive composition comprising: a) electrically conductive silver powder; b) ZnO powder; c) lead-free glass frits wherein based on total glass frits: Bi2O3: >5 mol %, B2O3: <15 mol %, BaO: <5 mol %, SrO: <5 mol %, Al2O3: <5 mol %; and d) organic medium, wherein (the content of ZnO / the content of the silver powder)×100 is more than 2.5.
    Type: Application
    Filed: April 12, 2007
    Publication date: October 16, 2008
    Applicant: E. I. DUPONT DE NEMOURS AND COMPANY
    Inventor: Takuya Konno