Patents by Inventor Masaki Shima

Masaki Shima 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).

  • Patent number: 8957351
    Abstract: In a catalytic CVD equipment, a holder includes an antireflective structure for preventing reflection of a radiant ray that is ejected from the catalytic wire toward the side of the substrate.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: February 17, 2015
    Assignees: SANYO Electric Co., Ltd., ULVAC, Inc.
    Inventors: Masaki Shima, Yoshinori Wakamiya, Shuji Osono, Satohiro Okayama, Hideyuki Ogata
  • Patent number: 8835196
    Abstract: The purpose of the present invention is to favorably modify a transparent conductive film and provide a transparent conductive film with few grain boundaries. In the manufacturing method for the transparent conductive film of the present invention, a transparent conductive film 3 is formed on a substrate 2 inside a vacuum chamber 10, after which radiant heat is imparted from a surface modifying device 4 arranged near the substrate 2 to modify the transparent conductive film 3, and the substrate 2 having the modified transparent conductive film 3 is removed from the vacuum chamber 10.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: September 16, 2014
    Assignee: SANYO Electric Co., Ltd.
    Inventor: Masaki Shima
  • Patent number: 8835210
    Abstract: The present invention reduces the time required to manufacture a solar cell. After etching main surfaces (10B1, 10B2) of a crystalline silicon substrate (10B) using one etching solution, the main surfaces (10B1, 10B2) of the crystalline silicon substrate (10B) are etched at a lower etching rate than the etching performed using the one etching solution by using another etching solution that has a higher concentration of etching components than the one etching solution. In this way, a textured structure is formed in the main surfaces (10B1, 10B2) of the crystalline silicon substrate (10B).
    Type: Grant
    Filed: November 27, 2013
    Date of Patent: September 16, 2014
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Takuo Nakai, Naoki Yoshimura, Masaki Shima
  • Publication number: 20140162394
    Abstract: Provided is a method for manufacturing a solar cell with improved output characteristics. A hydrogen radical treatment, in which ions are not used, is performed on at least one of the first and second semiconductor layers (11, 13).
    Type: Application
    Filed: November 26, 2013
    Publication date: June 12, 2014
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Motohide Kai, Tomonori Ueyama, Masaki Shima
  • Publication number: 20140080246
    Abstract: The present invention reduces the time required to manufacture a solar cell. After etching main surfaces (10B1, 10B2) of a crystalline silicon substrate (10B) using one etching solution, the main surfaces (10B1, 10B2) of the crystalline silicon substrate (10B) are etched at a lower etching rate than the etching performed using the one etching solution by using another etching solution that has a higher concentration of etching components than the one etching solution. In this way, a textured structure is formed in the main surfaces (10B1, 10B2) of the crystalline silicon substrate (10B).
    Type: Application
    Filed: November 27, 2013
    Publication date: March 20, 2014
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Takuo Nakai, Naoki Yoshimura, Masaki Shima
  • Publication number: 20140073083
    Abstract: A manufacturing method for a solar cell having improved output characteristics is provided. After forming a p-side transparent conductive oxide layer (15), an n-side transparent conductive oxide layer (16) is formed.
    Type: Application
    Filed: November 21, 2013
    Publication date: March 13, 2014
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Masaki Shima, Yoshihiro Matsubara
  • Publication number: 20140017849
    Abstract: The purpose of the present invention is to favorably modify a transparent conductive film and provide a transparent conductive film with few grain boundaries. In the manufacturing method for the transparent conductive film of the present invention, a transparent conductive film 3 is formed on a substrate 2 inside a vacuum chamber 10, after which radiant heat is imparted from a surface modifying device 4 arranged near the substrate 2 to modify the transparent conductive film 3, and the substrate 2 having the modified transparent conductive film 3 is removed from the vacuum chamber 10.
    Type: Application
    Filed: September 17, 2013
    Publication date: January 16, 2014
    Applicant: Sanyo Electric Co., Ltd.
    Inventor: Masaki Shima
  • Patent number: 8513047
    Abstract: In accordance with the present invention, the dividing grooves 8 are formed so as not to be parallel to cleavage planes of the semiconductor substrate 1, and the semiconductor substrate 1 is bent along the dividing grooves 8, whereby the semiconductor substrate 1 is fractured along the dividing grooves 8.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: August 20, 2013
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hiroyuki Kannou, Masaki Shima
  • Patent number: 8389320
    Abstract: In accordance with the present invention, the dividing grooves 8 are formed so as not to be parallel to cleavage planes of the semiconductor substrate 1, and the semiconductor substrate 1 is bent along the dividing grooves 8, whereby the semiconductor substrate 1 is fractured along the dividing grooves 8.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: March 5, 2013
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Hiroyuki Kannou, Masaki Shima
  • Patent number: 8383927
    Abstract: A back metal electrode, a bottom cell using microcrystalline silicon for a photoelectric conversion layer, a front cell using amorphous silicon for a photoelectric conversion layer, and a transparent front electrode are formed in this order on a supporting substrate. At least one of the concentration of impurities contained in the front photoelectric conversion layer and the concentration of impurities contained in the bottom photoelectric conversion layer is controlled such that the concentration of impurities in the bottom photoelectric conversion layer is higher than the concentration of impurities in the front photoelectric conversion layer. Impurities do not include a p-type dopant or an n-type dopant but are any one, two, or all of carbon, nitrogen, and oxygen.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: February 26, 2013
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Masaki Shima, Kunimoto Ninomiya
  • Patent number: 8263859
    Abstract: An aspect of the present invention provides a stacked photovoltaic device that comprises a first power generating unit including a first semiconductor layer made of a substantially intrinsic non-single crystal semiconductor layer which functions as a photoelectric conversion layer; and a second power generating unit formed above the first power generating unit, the second power generating unit including a second semiconductor layer made of a substantially intrinsic non-crystalline semiconductor layer which functions as a photoelectric conversion layer. In the stacked photovoltaic device, a first density of an element mainly constituting the first semiconductor layer of the first power generating unit is lower than a second density of an element mainly constituting the second semiconductor layer of the second power generating unit.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: September 11, 2012
    Assignee: SANYO Electric Co., Ltd.
    Inventor: Masaki Shima
  • Publication number: 20120190149
    Abstract: In a catalytic CVD equipment, a holder includes an antireflective structure for preventing reflection of a radiant ray that is ejected from the catalytic wire toward the side of the substrate.
    Type: Application
    Filed: March 30, 2012
    Publication date: July 26, 2012
    Applicants: ULVAC, INC., SANYO ELECTRIC CO., LTD.
    Inventors: Masaki SHIMA, Yoshinori WAKAMIYA, Shuji OSONO, Satohiro OKAYAMA, Hideyuki OGATA
  • Publication number: 20120060893
    Abstract: A back metal electrode, a bottom cell using microcrystalline silicon for a photoelectric conversion layer, a front cell using amorphous silicon for a photoelectric conversion layer, and a transparent front electrode are formed in this order on a supporting substrate. At least one of the concentration of impurities contained in the front photoelectric conversion layer and the concentration of impurities contained in the bottom photoelectric conversion layer is controlled such that the concentration of impurities in the bottom photoelectric conversion layer is higher than the concentration of impurities in the front photoelectric conversion layer. Impurities do not include a p-type dopant or an n-type dopant but are any one, two, or all of carbon, nitrogen, and oxygen.
    Type: Application
    Filed: November 18, 2011
    Publication date: March 15, 2012
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Masaki SHIMA, Kunimoto NINOMIYA
  • Patent number: 8124867
    Abstract: A back metal electrode, a bottom cell using microcrystalline silicon for a photoelectric conversion layer, a front cell using amorphous silicon for a photoelectric conversion layer, and a transparent front electrode are formed in this order on a supporting substrate. At least one of the concentration of impurities contained in the front photoelectric conversion layer and the concentration of impurities contained in the bottom photoelectric conversion layer is controlled such that the concentration of impurities in the bottom photoelectric conversion layer is higher than the concentration of impurities in the front photoelectric conversion layer. Impurities do not include a p-type dopant or an n-type dopant but are any one, two, or all of carbon, nitrogen, and oxygen.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: February 28, 2012
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Masaki Shima, Kunimoto Ninomiya
  • Patent number: 7952018
    Abstract: A stacked photovoltaic apparatus capable of improving the output characteristics is provided. This stacked photovoltaic apparatus comprises a second power generation unit including a second semiconductor layer having a first refractive index and a third semiconductor layer of an amorphous semiconductor functioning as a photoelectric conversion layer, an intermediate layer formed between a first power generation unit and the second power generation unit with a second refractive index and a reflection promotive layer formed between the intermediate layer and the second power generation unit with such a third refractive index that the difference between the third refractive index and the first refractive index is larger than the difference between the second refractive index and the first refractive index.
    Type: Grant
    Filed: April 24, 2006
    Date of Patent: May 31, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Masaki Shima, Machie Saitou
  • Patent number: 7923625
    Abstract: A back metal electrode, a bottom cell using microcrystalline silicon for a photoelectric conversion layer, a front cell using amorphous silicon for a photoelectric conversion layer, and a transparent front electrode are formed in this order on a supporting substrate. At least one of the concentration of impurities contained in the front photoelectric conversion layer and the concentration of impurities contained in the bottom photoelectric conversion layer is controlled such that the concentration of impurities in the bottom photoelectric conversion layer is higher than the concentration of impurities in the front photoelectric conversion layer. Impurities do not include a p-type dopant or an n-type dopant but are any one, two, or all of carbon, nitrogen, and oxygen.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: April 12, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Masaki Shima, Kunimoto Ninomiya
  • Publication number: 20110020974
    Abstract: A stacked photovoltaic device which includes a first photovoltaic unit having an amorphous silicon layer 8 as a photoelectric conversion layer, and a second photovoltaic unit having a microcrystalline silicon layer 5 as a photoelectric conversion layer and succeeding backwardly from the first photovoltaic unit closer to a light incidence plane. The microcrystalline silicon layer 5 serving as the photoelectric conversion layer in the second photovoltaic unit has a ratio ?2 (?I(Si—O)/I(Si—H)) greater than a ratio ?1 (?I(Si—O)/I(Si—H)) of the amorphous silicon layer 8 serving as the photoelectric conversion layer in the first photovoltaic unit, where I(Si—O) is a peak area for the Si—O stretching mode of each silicon layer and I(Si—H) is a peak area for the Si—H stretching mode of each silicon layer when the amorphous and microcrystalline silicon layers 8 and 5 are measured by infrared absorption spectroscopy.
    Type: Application
    Filed: October 7, 2010
    Publication date: January 27, 2011
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventor: Masaki SHIMA
  • Publication number: 20100275970
    Abstract: A back metal electrode, a bottom cell using microcrystalline silicon for a photoelectric conversion layer, a front cell using amorphous silicon for a photoelectric conversion layer, and a transparent front electrode are formed in this order on a supporting substrate. At least one of the concentration of impurities contained in the front photoelectric conversion layer and the concentration of impurities contained in the bottom photoelectric conversion layer is controlled such that the concentration of impurities in the bottom photoelectric conversion layer is higher than the concentration of impurities in the front photoelectric conversion layer. Impurities do not include a p-type dopant or an n-type dopant but are any one, two, or all of carbon, nitrogen, and oxygen.
    Type: Application
    Filed: July 14, 2010
    Publication date: November 4, 2010
    Applicant: Sanyo Electric Co., Ltd.
    Inventors: Masaki SHIMA, Kunimoto Ninomiya
  • Publication number: 20100243026
    Abstract: A solar cell module includes: a translucent front surface member; a rear surface member; solar cells disposed between the front surface member and the rear surface member and electrically connected to each other; and a translucent sealing resin filled between the front surface member and the rear surface member and fixing the solar cells to the front surface member and the rear surface member. The solar cell includes: a photoelectric conversion body having a semiconductor junction to form an electric field isolating carriers; a suppression layer provided between the front surface member and the photoelectric conversion body and configured to suppress recombination of minority carriers; and an inclined surface provided at the outer edge of the suppression layer and extending in a direction non-parallel to the normal line of the solar cell.
    Type: Application
    Filed: March 24, 2010
    Publication date: September 30, 2010
    Applicant: Sanyo Electronic Co., Ltd
    Inventor: Masaki Shima
  • Patent number: 7794881
    Abstract: An electrode for a lithium battery having a thin film composed of active material capable of lithium storage and release, e.g., a microcrystalline or amorphous silicon thin film, provided on a current collector, the electrode being characterized in that a constituent of the current collector is diffused into the thin film.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: September 14, 2010
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Masahisa Fujimoto, Shin Fujitani, Masaki Shima, Hiromasa Yagi, Hisaki Tarui, Hiroshi Kurokawa, Shigeki Matsuta, Yoichi Domoto, Yoshio Kato, Hiroshi Nakajima, Hiroaki Ikeda, Kenji Asaoka, Ryuji Ohshita