Patents by Inventor Yosuke Inomata

Yosuke Inomata 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: 20160225920
    Abstract: A surface electrode (5) is installed on the light receiving surface of a solar cell element, the surface electrode (5) comprises three bus bar electrodes (5a) for extracting light-produced at the solar cell element to the outside and collecting finger electrodes (5b) connected to these bus bar electrodes (5a), and the bus bar electrodes (5a) are not less than 0.5 mm and not more than 2 mm in width and the finger electrodes (5b) are not less than 0.05 mm and not more than 0.1 mm in width. A high-efficient solar cell module can be obtained with substantially lowered resistance by increasing the number of bus bar electrode (5a) and thereby decreasing the lengths of the finger electrodes (5b).
    Type: Application
    Filed: April 12, 2016
    Publication date: August 4, 2016
    Inventors: Shuichi FUJII, Yosuke INOMATA, Tomonari SAKAMOTO, Koichiro NIIRA, Yuko FUKAWA, Hiroshi MORITA, Koji NISHI, Tatsuya YASHIKI, Mitsuo YAMASHITA, Kenji FUKUI
  • Patent number: 8975172
    Abstract: [Object] To provide a method for manufacturing a solar cell element including a semiconductor substrate that includes a high-concentration dopant layer located near the surface of the semiconductor substrate and a low-concentration dopant layer located more inside the semiconductor substrate than the high-concentration dopant layer. [Solving Means] A method includes heating a semiconductor substrate having a first conductivity type in a first atmosphere which contains a dopant having a second conductivity type and which has a first dopant concentration; heating in a second atmosphere the semiconductor substrate heated in the first atmosphere, the second atmosphere having a second dopant concentration less than the first dopant concentration; and heating in a third atmosphere the semiconductor substrate heated in the second atmosphere, the third atmosphere having a third dopant concentration greater than the second dopant concentration.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: March 10, 2015
    Assignee: KYOCERA Corporation
    Inventors: Rui Yatabe, Kenichi Kurobe, Yosuke Inomata
  • Patent number: 8975506
    Abstract: A surface electrode (5) is installed on the light receiving surface of a solar cell element, the surface electrode (5) comprises three bus bar electrodes (5a) for extracting light-produced at the solar cell element to the outside and collecting finger electrodes (5b) connected to these bus bar electrodes (5a), and the bus bar electrodes (5a) are not less than 0.5 mm and not more than 2 mm in width and the finger electrodes (5b) are not less than 0.05 mm and not more than 0.1 mm in width. A high-efficient solar cell module can be obtained with substantially lowered resistance by increasing the number of bus bar electrode (5a) and thereby decreasing the lengths of the finger electrodes (5b).
    Type: Grant
    Filed: October 13, 2011
    Date of Patent: March 10, 2015
    Assignee: KYOCERA Corporation
    Inventors: Shuichi Fujii, Yosuke Inomata, Tomonari Sakamoto, Koichiro Niira, Yuko Fukawa, Hiroshi Morita, Koji Nishi, Tatsuya Yashiki, Mitsuo Yamashita, Kenji Fukui
  • Publication number: 20140209152
    Abstract: A surface electrode (5) is installed on the light receiving surface of a solar cell element, the surface electrode (5) comprises three bus bar electrodes (5a) for extracting light-produced at the solar cell element to the outside and collecting finger electrodes (5b) connected to these bus bar electrodes (5a), and the bus bar electrodes (5a) are not less than 0.5 mm and not more than 2 mm in width and the finger electrodes (5b) are not less than 0.05 mm and not more than 0.1 mm in width. A high-efficient solar cell module can be obtained with substantially lowered resistance by increasing the number of bus bar electrode (5a) and thereby decreasing the lengths of the finger electrodes (5b).
    Type: Application
    Filed: March 28, 2014
    Publication date: July 31, 2014
    Applicant: KYOCERA CORPORATION
    Inventors: Shuichi FUJII, Yosuke INOMATA, Tomonari SAKAMOTO, Koichiro NIIRA, Yuko FUKAWA, Hiroshi MORITA, Koji NISHI, Tatsuya YASHIKI, Mitsuo YAMASHITA, Kenji FUKUI
  • Patent number: 8674210
    Abstract: To provide a photoelectric conversion device having a high photoelectric conversion efficiency, a photoelectric conversion device 21 includes a substrate 1, a plurality of lower electrodes 2 on the substrate 1 comprising a metal element, a plurality of photoelectric conversion layers 33 comprising a chalcogen compound semiconductor formed on the plurality of lower electrodes 2 and separated from one another on the lower electrodes 2, a metal-chalcogen compound layer 8 comprising the metal element and a chalcogen element included in the chalcogen compound semiconductor formed between the lower electrode 2 and the photoelectric conversion layer 33, an upper electrode 5 formed on the photoelectric conversion layer 33, and a connection conductor 7 electrically connecting, in a plurality of the photoelectric conversion layers 33, the upper electrode 5 to the lower electrode 2 without interposition of the metal-chalcogen compound layer 8.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: March 18, 2014
    Assignee: Kyocera Corporation
    Inventors: Daisuke Nishimura, Toshifumi Sugawara, Ken Nishiura, Norihiko Matsushima, Yosuke Inomata, Hisao Arimune, Tsuyoshi Uesugi
  • Publication number: 20130247964
    Abstract: A photoelectric conversion module is disclosed. The photoelectric conversion module includes a photoelectric conversion panel and a moisture barrier plate. The photoelectric conversion panel includes first and second surfaces, a photoelectric converter between the first and second surfaces, and a conductive lead. An opening is located on the first surface. The moisture barrier plate is located on the second surface and includes first and second principal surfaces, and a through-hole extending from the first principal surface to the second principal surface. The moisture barrier plate covers the one principal surface. The through-hole does not overlap the opening. A filling member is located in a gap between the first surface and the first principal surface. The conductive lead goes through a part of the filling member, and has an end electrically coupled to the photoelectric converter and the other end coming out through the opening to the exterior.
    Type: Application
    Filed: November 29, 2011
    Publication date: September 26, 2013
    Applicant: KYOCERA CORPORATION
    Inventors: Yosuke Inomata, Masahiro Yokota, Shintaro Mitsuno, Norihiko Matsushima, Hisao Arimune
  • Publication number: 20120260964
    Abstract: A surface electrode (5) is installed on the light receiving surface of a solar cell element, the surface electrode (5) comprises three bus bar electrodes (5a) for extracting light-produced at the solar cell element to the outside and collecting finger electrodes (5b) connected to these bus bar electrodes (5a), and the bus bar electrodes (5a) are not less than 0.5 mm and not more than 2 mm in width and the finger electrodes (5b) are not less than 0.05 mm and not more than 0.1 mm in width. A high-efficient solar cell module can be obtained with substantially lowered resistance by increasing the number of bus bar electrode (5a) and thereby decreasing the lengths of the finger electrodes (5b).
    Type: Application
    Filed: October 13, 2011
    Publication date: October 18, 2012
    Applicant: KYOCERA CORPORATION
    Inventors: Shuichi FUJII, Yosuke INOMATA, Tomonari SAKAMOTO, Koichiro NIIRA, Yuko FUKAWA, Hiroshi MORITA, Koji NISHI, Tatsuya YASHIKI, Mitsuo YAMASHITA, Kenji FUKUI
  • Publication number: 20120174957
    Abstract: To provide a photoelectric conversion device having a high photoelectric conversion efficiency, a photoelectric conversion device 21 includes a substrate 1, a plurality of lower electrodes 2 on the substrate 1 comprising a metal element, a plurality of photoelectric conversion layers 33 comprising a chalcogen compound semiconductor formed on the plurality of lower electrodes 2 and separated from one another on the lower electrodes 2, a metal-chalcogen compound layer 8 comprising the metal element and a chalcogen element included in the chalcogen compound semiconductor formed between the lower electrode 2 and the photoelectric conversion layer 33, an upper electrode 5 formed on the photoelectric conversion layer 33, and a connection conductor 7 electrically connecting, in a plurality of the photoelectric conversion layers 33, the upper electrode 5 to the lower electrode 2 without interposition of the metal-chalcogen compound layer 8.
    Type: Application
    Filed: September 29, 2010
    Publication date: July 12, 2012
    Applicant: KYOCERA CORPORATION
    Inventors: Daisuke Nishimura, Toshifumi Sugawara, Ken Nishiura, Norihiko Matsushima, Yosuke Inomata, Hisao Arimune, Tsuyoshi Uesugi
  • Publication number: 20100037946
    Abstract: [Object] To provide a method for manufacturing a solar cell element including a semiconductor substrate that includes a high-concentration dopant layer located near the surface of the semiconductor substrate and a low-concentration dopant layer located more inside the semiconductor substrate than the high-concentration dopant layer [Solving Means] A method includes' heating a semiconductor substrate having a first conductivity type in a first atmosphere which contains a dopant having a second conductivity type and which has a first dopant concentration; heating in a second atmosphere the semiconductor substrate heated in the first atmosphere, the second atmosphere having a second dopant concentration less than the first dopant concentration; and heating in a third atmosphere the semiconductor substrate heated in the second atmosphere, the third atmosphere having a third dopant concentration greater than the second dopant concentration.
    Type: Application
    Filed: September 27, 2007
    Publication date: February 18, 2010
    Applicant: KYOCERA CORPORATION
    Inventors: Rui Yatabe, Kenichi Kurobe, Yosuke Inomata
  • Patent number: 7556740
    Abstract: A substrate processing apparatus that roughens the surface of a substrate through a dry etching method by covering the surface of the substrate to be processed with a plate provided with a number of opening portions. The plate is provided with the opening portions in such a manner that an open area ratio of the opening portions on the peripheral side is smaller than an open area ratio of the opening portions in the central portion when the plate is viewed in a plane. It is thus possible to form textures on the surface of the substrate efficiently and homogenously, which in turn makes it possible to manufacture highly efficient solar cells or the like at a low cost.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: July 7, 2009
    Assignee: Kyocera Corporation
    Inventors: Yosuke Inomata, Katsuhiko Shirasawa
  • Patent number: 7556741
    Abstract: A dry etching apparatus including a plate 15 provided in parallel or nearly parallel with an RF electrode 9 to cover a substrate 1 placed on the RF electrode 9 directly or through a tray 24. The plate 15 is provided with planar or nearly planar obstacles 16 that inhibit a gas and plasma from passing through the plate 15 as well as opening portions 19. This makes it possible to achieve conditions under which etching residues attach to the surface of the substrate faster by trapping the etching residues in a space between the surface of the substrate 1 and the plate 15. Fine textures can be thus formed efficiently on the surface of the substrate (FIG. 4).
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: July 7, 2009
    Assignee: Kyocera Corporation
    Inventors: Yosuke Inomata, Yuko Fukawa
  • Patent number: 7459098
    Abstract: A dry etching apparatus that performs etching on a substrate 1 placed on a tray 13 inside a chamber 18 by covering the substrate 1 with a plate 14 provided with opening portions 15, in which a distance D between the surface opposing the substrate 1 and the substrate 1 in the peripheral portion of the plate 14 is set shorter than the distance D between the surface opposing the substrate 1 and the substrate 1 in the central portion of the plate 14. Textures can be thus formed homogeneously on the surface of the substrate.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: December 2, 2008
    Assignee: Kyocera Corporation
    Inventors: Yosuke Inomata, Yuko Fukawa
  • Publication number: 20070295381
    Abstract: A surface electrode (5) is installed on the light receiving surface of a solar cell element, the surface electrode (5) comprises three bus bar electrodes (5a) for extracting light-produced at the solar cell element to the outside and collecting finger electrodes (5b) connected to these bus bar electrodes (5a), and the bus bar electrodes (5a) are not less than 0.5 mm and not more than 2 mm in width and the finger electrodes (5b) are not less than 0.05 mm and not more than 0.1 mm in width. A high-efficient solar cell module can be obtained with substantially lowered resistance by increasing the number of bus bar electrode (5a) and thereby decreasing the lengths of the finger electrodes (5b).
    Type: Application
    Filed: March 29, 2005
    Publication date: December 27, 2007
    Applicant: Kyocera Corporation
    Inventors: Shuichi Fujii, Yosuke Inomata, Tomonari Sakamoto, Koichiro Niira, Yuko Fukawa, Hiroshi Morita, Koji Nishi, Tatsuya Yashi, Mitsuo Yamashita, Kenji Fukui
  • Publication number: 20070062575
    Abstract: A surface of a multicrystalline silicon substrate is etched with an alkaline aqueous solution in a condition so that a surface area-to-planar surface area ratio R is smaller than 1.1. A multiplicity of fine textures are formed over the irregularities by dry etching. This allows fine textures to be formed uniformly, and a solar cell with high efficiency can thus be produced.
    Type: Application
    Filed: September 27, 2006
    Publication date: March 22, 2007
    Applicant: KYOCERA CORPORATION
    Inventor: Yosuke INOMATA
  • Patent number: 7128975
    Abstract: A surface of a multicrystalline silicon substrate is etched with an alkaline aqueous solution in a condition so that a surface area-to-planar surface area ratio R is smaller than 1.1. A multiplicity of fine textures are formed over the irregularities by dry etching. This allows fine textures to be formed uniformly, and a solar cell with high efficiency can thus be produced.
    Type: Grant
    Filed: January 22, 2004
    Date of Patent: October 31, 2006
    Assignee: Kyocera Corporation
    Inventor: Yosuke Inomata
  • Publication number: 20040152326
    Abstract: A surface of a multicrystalline silicon substrate is etched with an alkaline aqueous solution in a condition so that a surface area-to-planar surface area ratio R is smaller than 1.1. A multiplicity of fine textures are formed over the irregularities by dry etching. This allows fine textures to be formed uniformly, and a solar cell with high efficiency can thus be produced.
    Type: Application
    Filed: January 22, 2004
    Publication date: August 5, 2004
    Applicant: KYOCERA CORPORATION
    Inventor: Yosuke Inomata
  • Publication number: 20040079725
    Abstract: A dry etching apparatus that performs etching on a substrate 1 placed on a tray 13 inside a chamber 18 by covering the substrate 1 with a plate 14 provided with opening portions 15, in which a distance D between the surface opposing the substrate 1 and the substrate 1 in the peripheral portion of the plate 14 is set shorter than the distance D between the surface opposing the substrate 1 and the substrate 1 in the central portion of the plate 14. Textures can be thus formed homogeneously on the surface of the substrate.
    Type: Application
    Filed: August 27, 2003
    Publication date: April 29, 2004
    Applicant: KYOCERA CORPORATION
    Inventors: Yosuke Inomata, Yuko Fukawa
  • Publication number: 20040069412
    Abstract: A dry etching apparatus including a plate 15 provided in parallel or nearly parallel with an RF electrode 9 to cover a substrate 1 placed on the RF electrode 9 directly or through a tray 24. The plate 15 is provided with planar or nearly planar obstacles 16 that inhibit a gas and plasma from passing through the plate 15 as well as opening portions 19. This makes it possible to achieve conditions under which etching residues attach to the surface of the substrate faster by trapping the etching residues in a space between the surface of the substrate 1 and the plate 15. Fine textures can be thus formed efficiently on the surface of the substrate (FIG. 4).
    Type: Application
    Filed: August 27, 2003
    Publication date: April 15, 2004
    Applicant: KYOCERA CORPORATION
    Inventors: Yosuke Inomata, Yuko Fukawa
  • Publication number: 20040040932
    Abstract: A substrate processing apparatus that roughens the surface of a substrate through a dry etching method by covering the surface of the substrate to be processed with a plate provided with a number of opening portions. The plate is provided with the opening portions in such a manner that an open area ratio of the opening portions on the peripheral side is smaller than an open area ratio of the opening portions in the central portion when the plate is viewed in a plane. It is thus possible to form textures on the surface of the substrate efficiently and homogenously, which in turn makes it possible to manufacture highly efficient solar cells or the like at a low cost.
    Type: Application
    Filed: August 26, 2003
    Publication date: March 4, 2004
    Applicant: KYOCERA CORPORATION
    Inventors: Yosuke Inomata, Katsuhiko Shirasawa
  • Patent number: RE46739
    Abstract: To provide a photoelectric conversion device having a high photoelectric conversion efficiency, a photoelectric conversion device 21 includes a substrate 1, a plurality of lower electrodes 2 on the substrate 1 comprising a metal element, a plurality of photoelectric conversion layers 33 comprising a chalcogen compound semiconductor formed on the plurality of lower electrodes 2 and separated from one another on the lower electrodes 2, a metal-chalcogen compound layer 8 comprising the metal element and a chalcogen element included in the chalcogen compound semiconductor formed between the lower electrode 2 and the photoelectric conversion layer 33, an upper electrode 5 formed on the photoelectric conversion layer 33, and a connection conductor 7 electrically connecting, in a plurality of the photoelectric conversion layers 33, the upper electrode 5 to the lower electrode 2 without interposition of the metal-chalcogen compound layer 8.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: February 27, 2018
    Assignee: KYOCERA CORPORATION
    Inventors: Daisuke Nishimura, Toshifumi Sugawara, Ken Nishiura, Norihiko Matsushima, Yosuke Inomata, Hisao Arimune, Tsuyoshi Uesugi