Patents by Inventor Junpei IRIKAWA
Junpei IRIKAWA 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).
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Patent number: 11522095Abstract: A 12th solar cell and a 13th solar cell are provided to overlap in part as viewed from a side of a light receiving surface 22. A portion of a light receiving surface of the 12th solar cell and a portion of a back surface of the 13th solar cell face each other in an overlapping portion across a wire. The overlapping portion includes a part where a resin is located both between the light receiving surface of the 12th solar cell and the wire and between the back surface of the 13th cell and the wiring member.Type: GrantFiled: August 26, 2020Date of Patent: December 6, 2022Assignee: PANASONIC HOLDINGS CORPORATIONInventor: Junpei Irikawa
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Publication number: 20210066524Abstract: A 12th solar cell and a 13th solar cell are provided to overlap in part as viewed from a side of a light receiving surface 22. A portion of a light receiving surface of the 12th solar cell and a portion of a back surface of the 13th solar cell face each other in an overlapping portion across a wire. The overlapping portion includes a part where a resin is located both between the light receiving surface of the 12th solar cell and the wire and between the back surface of the 13th cell and the wiring member.Type: ApplicationFiled: August 26, 2020Publication date: March 4, 2021Inventor: Junpei IRIKAWA
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Patent number: 10930807Abstract: A solar cell module having: a plurality of solar cells; a first protective member provided on the light-receiving surface side of the solar cells; a second protective member provided on the reverse surface side of the solar cells; a sealing layer for sealing the solar cells, the sealing layer being provided between the protective members; and a wavelength conversion substance for absorbing light of a specific wavelength and converting the light into light of a longer wavelength. The wavelength conversion substance is contained in at least a gap region, corresponding to the gap between the solar cells, of a reverse-surface-side region located on the side of the sealing layer nearer to the second protective member than the solar cells. The concentration of the wavelength conversion substance is higher in the gap region than in the region sandwiched by the reverse surface of the solar cells and the second protective member.Type: GrantFiled: August 17, 2016Date of Patent: February 23, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tasuku Ishiguro, Yukihiro Yoshimine, Junpei Irikawa
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Patent number: 10784392Abstract: A solar cell module includes: a solar cell having a front surface and a back surface; a front surface side encapsulant disposed on a front surface side of the solar cell, the front surface side encapsulant including a transparent resin sheet; a light reflector protruding from an end portion of the solar cell, the light reflector including a light reflection layer that reflects incident light, and a substrate layer that is disposed on the light reflection layer on a light incident side; and an ultraviolet absorber disposed closer to the light incident side than the light reflection layer, the light incident side being a back surface side of the front surface side encapsulant.Type: GrantFiled: March 19, 2019Date of Patent: September 22, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Akimichi Maekawa, Youhei Murakami, Haruhisa Hashimoto, Junpei Irikawa
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Publication number: 20200194606Abstract: A solar cell module includes a plurality of solar cells arranged to be aligned along a first direction, a plurality of wiring materials configured to connect the plurality of solar cells, a plurality of first transparent members disposed individually on respective light receiving surface sides of the plurality of solar cells and bonded to the plurality of wiring materials, and a plurality of second transparent members disposed individually on respective rear surface sides of the plurality of solar cells, the rear surface sides being opposite to the light receiving surface sides, and bonded to the plurality of wiring materials.Type: ApplicationFiled: December 10, 2019Publication date: June 18, 2020Applicant: Panasonic CorporationInventors: Yuya Nakamura, Haruhisa Hashimoto, Junpei Irikawa, Naoto Imada, Kenichi Maki, Takeshi Nishiwaki, Hitomi Ichinose
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Publication number: 20200168755Abstract: A 12th solar cell module includes a light receiving surface and a back surface that face in opposite directions. A first film is attached to the light receiving surface. Wires are sandwiched by the first film and the light receiving surface and connected to the 12th solar cell. A second film is attached to the back surface. Wires are sandwiched by the second film and the back surface and connected to the 12th solar cell. The first film is transparent, and the second film is non-transparent.Type: ApplicationFiled: November 19, 2019Publication date: May 28, 2020Inventors: Hiroshi KANNO, Junpei IRIKAWA, Naoto IMADA
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Patent number: 10629763Abstract: A solar cell module includes: two solar cells adjacent one another across a space; an elongated light reflector extending over the two solar cells; and a front protector covering front surfaces of the two solar cells and the light reflector. In a plan view of the two solar cells, each of the two solar cells has chamfered corners and a substantially octagonal shape with linear long sides and linear or non-linear short sides, connected alternately. The light reflector, in the plan view, protrudes in the longitudinal direction from an intersection between a first long side facing another long side across the space, among the long sides, and a first short side one end of which is connected to the first long side, among the short sides, to cause light reflected by the uneven structure of the light-reflective film to reach at least one of the two solar cells.Type: GrantFiled: September 28, 2018Date of Patent: April 21, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Akimichi Maekawa, Junpei Irikawa, Tasuku Ishiguro
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Patent number: 10454413Abstract: A solar cell module includes a first solar cell, a second solar cell disposed with a gap from the first solar cell, and a light reflection sheet bridging between the first solar cell and the second solar cell across the gap. The light reflection sheet is at least partially bent between the first and second solar cells.Type: GrantFiled: March 11, 2016Date of Patent: October 22, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Akimichi Maekawa, Junpei Irikawa, Tasuku Ishiguro, Haruhisa Hashimoto, Hiroshi Kanno
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Publication number: 20190288143Abstract: The solar battery module according to one embodiment of the present invention is provided with: multiple solar battery cells; a first protective member, a second protective member, a first wiring material for connecting adjacent solar cells; and a second wiring material for connecting strings, that have been obtained by connecting the multiple solar cells via the first wiring material, to each other. The first wiring material and/or the second wiring material has a conductive core material and a colored layer that covers a surface on the side of the core material that faces the first protective member. The colored layer absorbs at least 30% of visible light having a wavelength of 380-780 nm.Type: ApplicationFiled: June 4, 2019Publication date: September 19, 2019Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Shigeharu Taira, Naohiro Hitachi, Atsushi Saita, Yukihiro Yoshimine, Ryota Morikawa, Kenta Ishimura, Toshie Kunii, Kenji Tanaka, Akimichi Maekawa, Haruhisa Hashimoto, Junpei Irikawa
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Publication number: 20190214517Abstract: A solar cell module includes: a solar cell having a front surface and a back surface; a front surface side encapsulant disposed on a front surface side of the solar cell, the front surface side encapsulant including a transparent resin sheet; a light reflector protruding from an end portion of the solar cell, the light reflector including a light reflection layer that reflects incident light, and a substrate layer that is disposed on the light reflection layer on a light incident side; and an ultraviolet absorber disposed closer to the light incident side than the light reflection layer, the light incident side being a back surface side of the front surface side encapsulant.Type: ApplicationFiled: March 19, 2019Publication date: July 11, 2019Inventors: Akimichi MAEKAWA, Youhei MURAKAMI, Haruhisa HASHIMOTO, Junpei IRIKAWA
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Publication number: 20190148578Abstract: A solar cell module including: a solar cell; a first protection member provided on the light receiving surface side of the solar cell; a second protection member provided on the rear surface side of the solar cell; an encapsulant layer, including a first encapsulant layer disposed between the solar cell and the first protection member, and a second encapsulant layer disposed between the solar cell and the second protection member, which seals the solar cell; and a wavelength conversion substance, contained in at least the first encapsulant layer, which absorbs light having a specified wavelength, and converts the wavelength. The concentration of the wavelength conversion substance is higher in the first encapsulant layer than in the second encapsulant layer, and a resin constituting the second encapsulant layer has a smaller diffusion coefficient of the wavelength conversion substance than the diffusion coefficient of a resin constituting the first encapsulant layer.Type: ApplicationFiled: January 16, 2019Publication date: May 16, 2019Applicant: PANASONIC INTELLECTUAL PROPERTY MGMT CO., LTD.Inventors: Tasuku Ishiguro, Naoto Imada, Junpei Irikawa, Akimichi Maekawa
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Patent number: 10224448Abstract: A solar cell module including: a solar cell; a first protection member provided on the light receiving surface side of the solar cell; a second protection member provided on the rear surface side of the solar cell; an encapsulant layer, including a first encapsulant layer disposed between the solar cell and the first protection member, and a second encapsulant layer disposed between the solar cell and the second protection member, which seals the solar cell; and a wavelength conversion substance, contained in at least the first encapsulant layer, which absorbs light having a specified wavelength, and converts the wavelength. The concentration of the wavelength conversion substance is higher in the first encapsulant layer than in the second encapsulant layer, and a resin constituting the second encapsulant layer has a smaller diffusion coefficient of the wavelength conversion substance than the diffusion coefficient of a resin constituting the first encapsulant layer.Type: GrantFiled: December 9, 2016Date of Patent: March 5, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., Ltd.Inventors: Tasuku Ishiguro, Naoto Imada, Junpei Irikawa, Akimichi Maekawa
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Publication number: 20190035963Abstract: A solar cell module includes: two solar cells adjacent one another across a space; an elongated light reflector extending over the two solar cells; and a front protector covering front surfaces of the two solar cells and the light reflector. In a plan view of the two solar cells, each of the two solar cells has chamfered corners and a substantially octagonal shape with linear long sides and linear or non-linear short sides, connected alternately. The light reflector, in the plan view, protrudes in the longitudinal direction from an intersection between a first long side facing another long side across the space, among the long sides, and a first short side one end of which is connected to the first long side, among the short sides, to cause light reflected by the uneven structure of the light-reflective film to reach at least one of the two solar cells.Type: ApplicationFiled: September 28, 2018Publication date: January 31, 2019Inventors: Akimichi MAEKAWA, Junpei IRIKAWA, Tasuku ISHIGURO
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Publication number: 20180342637Abstract: A solar cell module which is an example of an embodiment includes a solar cell, a first protective member, a second protective member, a first encapsulant and a second encapsulant. The solar cell is a back contact type cell including a semiconductor substrate and an electrode formed on a rear surface side of the substrate. The first encapsulant has a storage elastic modulus (G1) at 25° C. of 15 MPa or less.Type: ApplicationFiled: May 22, 2018Publication date: November 29, 2018Applicant: Panasonic CorporationInventors: Takeshi Nishiwaki, Junpei Irikawa
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Publication number: 20170365727Abstract: A solar cell module includes: a light-diffusing member adjacent to a solar cell; a tab line disposed on front surfaces of solar cells and having a light-diffusing shape on a light-entering side; and a protective member having first and second principal surfaces. When an average distance between a front surface of the solar cell and the second principal surface is expressed as D, a refractive index of the protective member is expressed as n, and a critical angle for total reflection satisfying sin R=1/n is expressed as R, the tab line is disposed in a zone other than a zone between a position at a distance of 3.46×D from, among ends of the light-diffusing member, an end closest to the solar cell and a position at a distance of 2×D×tan R from, among the ends, an end farthest from the solar cell.Type: ApplicationFiled: August 30, 2017Publication date: December 21, 2017Inventors: Tasuku ISHIGURO, Akimichi MAEKAWA, Haruhisa HASHIMOTO, Masahiro IWATA, Shoji SATO, Junpei IRIKAWA
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Publication number: 20170200843Abstract: A solar cell module includes solar cells. encapsulants are layered on surfaces of the solar cells. A glass substrate is layered on the encapsulants. The solar cell module further includes an epoxy resin-containing member. Each encapsulant includes the ultraviolet ray-absorbing member. The ultraviolet ray-absorbing member sets the transmittance to 1% or less at the wavelengths ranging from 300 to 360 nm.Type: ApplicationFiled: March 29, 2017Publication date: July 13, 2017Inventors: Junpei IRIKAWA, Naoto IMADA, Tasuku ISHIGURO, Hiroshi KANNO
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Publication number: 20170098726Abstract: This solar cell module is provided with: a solar cell; a first protection member that is arranged on the light-receiving surface side of the solar cell; a second protection member that is arranged on the back surface side of the solar cell; and an encapsulant that seals the solar cell. The encapsulant comprises an encapsulant that is arranged between the solar cell and the first protection member and an encapsulant that is arranged between the solar cell and the second protection member, and the encapsulant contains a wavelength conversion substance. This solar cell module satisfies the condition of formula. EQE(?2)×(1?0.46n?2.Type: ApplicationFiled: December 16, 2016Publication date: April 6, 2017Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Junpei Irikawa, Naoto Imada
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Publication number: 20170092796Abstract: A solar cell module including: a solar cell; a first protection member provided on the light receiving surface side of the solar cell; a second protection member provided on the rear surface side of the solar cell; an encapsulant layer, including a first encapsulant layer disposed between the solar cell and the first protection member, and a second encapsulant layer disposed between the solar cell and the second protection member, which seals the solar cell; and a wavelength conversion substance, contained in at least the first encapsulant layer, which absorbs light having a specified wavelength, and converts the wavelength. The concentration of the wavelength conversion substance is higher in the first encapsulant layer than in the second encapsulant layer, and a resin constituting the second encapsulant layer has a smaller diffusion coefficient of the wavelength conversion substance than the diffusion coefficient of a resin constituting the first encapsulant layer.Type: ApplicationFiled: December 9, 2016Publication date: March 30, 2017Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Tasuku Ishiguro, Naoto Imada, Junpei Irikawa, Akimichi Maekawa
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Publication number: 20160359064Abstract: A solar cell module having: a plurality of solar cells; a first protective member provided on the light-receiving surface side of the solar cells; a second protective member provided on the reverse surface side of the solar cells; a sealing layer for sealing the solar cells, the sealing layer being provided between the protective members; and a wavelength conversion substance for absorbing light of a specific wavelength and converting the light into light of a longer wavelength. The wavelength conversion substance is contained in at least a gap region, corresponding to the gap between the solar cells, of a reverse-surface-side region located on the side of the sealing layer nearer to the second protective member than the solar cells. The concentration of the wavelength conversion substance is higher in the gap region than in the region sandwiched by the reverse surface of the solar cells and the second protective member.Type: ApplicationFiled: August 17, 2016Publication date: December 8, 2016Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tasuku Ishiguro, Yukihiro Yoshimine, Junpei Irikawa
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Publication number: 20160336470Abstract: This solar cell module is provided with: solar cells; a first protective member winch is provided over a light-receiving-surface side of the solar ceils; a second protective member which is provided over a rear-surface side of the solar cells; and a sealing layer which is provided between the protective members, and which seals the solar cells. A light receiving surface-side area of the sealing layer, said area being positioned further towards the first protective member side than the solar cells, includes: a wavelength conversion material which absorbs light of a specific wavelength, and converts said wavelength: and an ultraviolet-ray absorption material which selectively absorbs ultraviolet rays.Type: ApplicationFiled: July 25, 2016Publication date: November 17, 2016Applicant: Panasonic Intellectual Property Management Co., Ltd.Inventors: Keisuke Ogawa, Tasuku Ishiguro, Yukihiro Yoshimine, Junpei Irikawa