Patents by Inventor Youichi Nagai

Youichi Nagai 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: 10879837
    Abstract: This photovoltaic module includes: a power generating element configured to receive light to generate power; and a housing which is closed, the housing having: a concentrating portion provided with a lens configured to concentrate sunlight; a bottom portion in which the power generating element is disposed; and a side wall serving as an outer frame for the bottom portion and supporting the concentrating portion. The side wall is formed from a resin and has at least one vent hole.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: December 29, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Makoto Inagaki, Youichi Nagai, Kenji Saito, Takashi Iwasaki, Rui Mikami, Tomohiro Nemoto
  • Publication number: 20200373449
    Abstract: A concentrator photovoltaic module includes: a concentrating portion configured by arranging a plurality of Fresnel lenses that concentrate sunlight; a plurality of power generating elements arranged at positions corresponding respectively to the plurality of Fresnel lenses; a plurality of ball lenses corresponding respectively to the plurality of power generating elements and guide the sunlight concentrated by the plurality of Fresnel lenses to the plurality of power generating elements; and a housing that contains the plurality of ball lenses and the plurality of power generating elements. The housing includes a resin frame body, and a metal bottom plate that is fixed to the frame body, and on the inner surface of which the plurality of ball lenses and the plurality of power generating elements are arranged. The groove portion for reducing thermal expansion of the inner surface side of the bottom plate is on the inner surface of the bottom plate.
    Type: Application
    Filed: April 19, 2018
    Publication date: November 26, 2020
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Youichi NAGAI, Kenji SAITO, Kazushi IYATANI, Makoto INAGAKI, Rui MIKAMI, Yoshiya ABIKO
  • Patent number: 10825943
    Abstract: A concentrator photovoltaic module including: a concentrating portion formed by arranging a plurality of lens elements each configured to concentrate sunlight; and a housing configured to accommodate a plurality of power generating elements disposed at positions respectively corresponding to the lens elements, wherein the housing includes: a frame body formed from resin; and a bottom plate formed from metal, the bottom plate being mounted to the frame body and having the power generating elements mounted thereto, and the frame body includes: a frame body portion forming an outer frame; and a liner portion extending along an upper surface of the bottom plate at an inner side of the frame body portion, the liner portion having both end portions thereof formed integrally with the frame body portion.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: November 3, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kenji Saito, Youichi Nagai, Rui Mikami, Akihiko Kojima
  • Patent number: 10818810
    Abstract: A concentrator photovoltaic module according to one embodiment of the present disclosure includes: a case; a substrate disposed on a bottom surface of the case and having a plurality of stacked wiring layers; and concentrator photovoltaic elements disposed on the substrate and connected to the wiring layers. The concentrator photovoltaic elements connected to different wiring layers are connected to each other in parallel. According to the concentrator photovoltaic module according to the one embodiment of the present disclosure, output voltage can be decreased.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: October 27, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kazumasa Toya, Makoto Inagaki, Youichi Nagai, Takashi Iwasaki, Kenji Saito, Rui Mikami
  • Publication number: 20200252027
    Abstract: A concentrator photovoltaic module includes: a concentrating portion configured by arranging multiple Fresnel lenses that concentrate sunlight; multiple power generating elements arranged at positions corresponding respectively to the Fresnel lenses; multiple ball lenses corresponding respectively to the power generating elements and guide the sunlight concentrated by the Fresnel lenses to the power generating elements; and a housing that contains the ball lenses and the power generating elements. The housing includes a resin frame body, and a metal bottom plate that is fixed to the frame body, and on an inner surface of which the ball lenses and the power generating elements are arranged. Multiple columnar heat-dissipating members, extending along an outer surface of the bottom plate and dissipating the heat of the bottom plate outward, are attached to the outside surface of the bottom plate.
    Type: Application
    Filed: April 19, 2018
    Publication date: August 6, 2020
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Youichi NAGAI, Kazushi IYATANI, Munetsugu UEYAMA, Makoto INAGAKI, Yoshiya ABIKO
  • Patent number: 10680127
    Abstract: This power generation circuit unit includes a wiring substrate and a plurality of power generating elements mounted to the wiring substrate. The wiring substrate includes: a first substrate (32E) and a second substrate (32F) to each of which the power generating element is mounted; and a coupling portion (33L) configured to couple the first substrate (32E) and the second substrate (32F) together. The first substrate (32E) can be disposed at least two positions of: a first position separated from the second substrate (32F) by a first distance; and a second position separated from the second substrate (32F) by a second distance being greater than the first distance. The coupling portion (33L) has an FPC (flexible printed circuits). In a state where the first substrate is disposed at the second position, at least a part of the coupling portion (33L) is twisted.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: June 9, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kazumasa Toya, Takashi Iwasaki, Youichi Nagai, Koji Mori, Kenji Saito, Rui Mikami, Takeshi Yamana
  • Patent number: 10608580
    Abstract: In a concentrator photovoltaic unit configured to guide sunlight concentrated by a primary concentrating portion to a power generating element by means of a secondary concentrating portion, the secondary concentrating portion includes: a secondary lens having a three-dimensional shape; and a cover portion being translucent and having a refractive index higher than that of air and lower than that of the secondary lens, the cover portion covering at least a surface on which the sunlight is incident in a surface of the secondary lens, in a thin film shape extending along the surface on which the sunlight is incident. By arranging a large number of the units, a concentrator photovoltaic module can be configured. By arranging a large number of the concentrator photovoltaic modules, a concentrator photovoltaic panel can be configured. By further providing a driving device for tracking the sun, a concentrator photovoltaic apparatus can be configured.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: March 31, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kazumasa Toya, Takashi Iwasaki, Youichi Nagai, Yoshiya Abiko, Kenji Saito, Makoto Inagaki
  • Patent number: 10560051
    Abstract: Provided is a photovoltaic apparatus including: a power generation part including a plurality of power generating elements each generating power in accordance with an amount of received light, the power generation part having a light receiving surface and a back surface positioned on an opposite side to the light receiving surface; a function part provided separately from the power generation part and configured to provide functions regarding the photovoltaic apparatus; and a position changeable part provided between the power generation part and the function part and capable of changing positions of the power generation part and the function part, wherein the back surface of the power generation part faces the function part face, and the position changeable part is capable of changing the positions of the power generation part and the function part while maintaining a state where the back surface of the power generation part faces the function part.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: February 11, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Takashi Iwasaki, Yoshiya Abiko, Youichi Nagai, Makoto Inagaki
  • Patent number: 10389295
    Abstract: An enclosure for a concentrator photovoltaic device according to the present disclosure includes a side wall having an upper end, a lower end, an inner surface, and an outer surface, the side wall being composed of a resin, the side wall being provided with an air hole extending through the inner and outer surfaces of the side wall, the air hole being inclined from the inner surface of the side wall to the outer surface of the side wall in a direction from the upper end of the side wall toward the lower end of the side wall. According to the present disclosure, power generation efficiency of a photovoltaic module can be further increased, and the photovoltaic module can be suppressed from being decreased in performance due to entrance of undesired matters to inside of the case, such as dusts, water droplets, and foreign matters.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: August 20, 2019
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kenji Saito, Takashi Iwasaki, Youichi Nagai, Yoshiya Abiko, Akihiko Kojima, Makoto Inagaki
  • Publication number: 20190237606
    Abstract: A concentrator photovoltaic module including: a concentrating portion formed by arranging a plurality of lens elements each configured to concentrate sunlight; and a housing configured to accommodate a plurality of power generating elements disposed at positions respectively corresponding to the lens elements, wherein the housing includes: a frame body formed from resin; and a bottom plate formed from metal, the bottom plate being mounted to the frame body and having the power generating elements mounted thereto, and the frame body includes: a frame body portion forming an outer frame; and a liner portion extending along an upper surface of the bottom plate at an inner side of the frame body portion, the liner portion having both end portions thereof formed integrally with the frame body portion.
    Type: Application
    Filed: July 10, 2017
    Publication date: August 1, 2019
    Inventors: Kenji Saito, Youichi Nagai, Rui Mikami, Akihiko Kojima
  • Publication number: 20190233950
    Abstract: A hydrogen generation system according to one aspect of the present disclosure comprises: a concentrator photovoltaic module including: a casing including a frame, and a bottom plate provided at the lower end of the frame, and a concentrator photovoltaic element disposed on the bottom plate; a hydrogen generation apparatus configured to generate hydrogen by electrolyzing water with electric power supplied from the concentrator photovoltaic module; and a heat exhauster mechanism configured to raise the temperature of the water using heat generated in the concentrator photovoltaic module.
    Type: Application
    Filed: July 25, 2017
    Publication date: August 1, 2019
    Inventors: Rui Mikami, Takashi Iwasaki, Makoto Inagaki, Youichi Nagai, Seiji Yamamoto
  • Publication number: 20190237605
    Abstract: A concentrator photovoltaic module according to one embodiment of the present disclosure includes: a case; a substrate disposed on a bottom surface of the case and having a plurality of stacked wiring layers; and concentrator photovoltaic elements disposed on the substrate and connected to the wiring layers. The concentrator photovoltaic elements connected to different wiring layers are connected to each other in parallel. According to the concentrator photovoltaic module according to the one embodiment of the present disclosure, output voltage can be decreased.
    Type: Application
    Filed: June 7, 2017
    Publication date: August 1, 2019
    Inventors: Kazumasa Toya, Makoto Inagaki, Youichi Nagai, Takashi Iwasaki, Kenji Saito, Rui Mikami
  • Patent number: 10312852
    Abstract: A mounting structure of a housing 11 for a concentrator photovoltaic module 1M includes: a bottom plate 15 framed from an electric conductor and having a plurality of cells 12c arrayed thereat; a side wall frame 16 made of resin, the side wall frame 16 standing along the outer edge of the bottom plate 15 and configured to hold a concentrating portion 13 so as to face the bottom plate 15; a pair of the frames 8 (support member) each being a grounded electric conductor, the pair of the frames 8 configured to be in contact with the bottom plate 15 to support the module 1M; and bolts 25 and nuts 26, as a fastening member, configured to fasten the pair of the frames 8 and the bottom plate 15 to each other thereby to fix the module 1M to the pair of the frames 8, the bolts 25 and the nuts 26 each being an electric conductor thereby to serve as paths for electric connection from the bottom plate 15 to the pair of the frames 8.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: June 4, 2019
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kenji Saito, Akihiko Kojima, Koji Mori, Tomohiro Nemoto, Youichi Nagai
  • Publication number: 20180234046
    Abstract: A mounting structure of a housing 11 for a concentrator photovoltaic module 1M includes: a bottom plate 15 framed from an electric conductor and having a plurality of cells 12c arrayed thereat; a side wall frame 16 made of resin, the side wall frame 16 standing along the outer edge of the bottom plate 15 and configured to hold a concentrating portion 13 so as to face the bottom plate 15; a pair of the frames 8 (support member) each being a grounded electric conductor, the pair of the frames 8 configured to be in contact with the bottom plate 15 to support the module 1M; and bolts 25 and nuts 26, as a fastening member, configured to fasten the pair of the frames 8 and the bottom plate 15 to each other thereby to fix the module 1M to the pair of the frames 8, the bolts 25 and the nuts 26 each being an electric conductor thereby to serve as paths for electric connection from the bottom plate 15 to the pair of the frames 8.
    Type: Application
    Filed: June 14, 2016
    Publication date: August 16, 2018
    Inventors: Kenji Saito, Akihiko Kojima, Koji Mori, Tomohiro Nemoto, Youichi Nagai
  • Publication number: 20180212557
    Abstract: An enclosure for a concentrator photovoltaic device according to the present disclosure includes a side wall having an upper end, a lower end, an inner surface, and an outer surface, the side wall being composed of a resin, the side wall being provided with an air hole extending through the inner and outer surfaces of the side wall, the air hole being inclined from the inner surface of the side wall to the outer surface of the side wall in a direction from the upper end of the side wall toward the lower end of the side wall. According to the present disclosure, power generation efficiency of a photovoltaic module can be further increased, and the photovoltaic module can be suppressed from being decreased in performance due to entrance of undesired matters to inside of the case, such as dusts, water droplets, and foreign matters.
    Type: Application
    Filed: September 30, 2016
    Publication date: July 26, 2018
    Applicant: Sumitomo Electric Industries, Ltd.
    Inventors: Kenji Saito, Takashi Iwasaki, Youichi Nagai, Yoshiya Abiko, Akihiko Kojima, Makoto Inagaki
  • Patent number: D831594
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: October 23, 2018
    Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Koji Mori, Takashi Iwasaki, Kazumasa Toya, Kenji Saito, Yoshiya Abiko, Youichi Nagai, Makoto Inagaki, Rui Mikami
  • Patent number: D864853
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: October 29, 2019
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kenji Saito, Youichi Nagai, Akihiko Kojima, Takashi Iwasaki, Yoshiya Abiko, Makoto Inagaki
  • Patent number: D877099
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: March 3, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kazumasa Toya, Kenji Saito, Youichi Nagai, Takashi Iwasaki
  • Patent number: D877100
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: March 3, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Kazumasa Toya, Kenji Saito, Youichi Nagai, Takashi Iwasaki, Makoto Inagaki, Kazushi Iyatani
  • Patent number: D899353
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: October 20, 2020
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Ryusuke Imai, Kenji Saito, Youichi Nagai