Patents by Inventor Yuko Fukawa
Yuko Fukawa 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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Publication number: 20160225920Abstract: 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: ApplicationFiled: April 12, 2016Publication date: August 4, 2016Inventors: Shuichi FUJII, Yosuke INOMATA, Tomonari SAKAMOTO, Koichiro NIIRA, Yuko FUKAWA, Hiroshi MORITA, Koji NISHI, Tatsuya YASHIKI, Mitsuo YAMASHITA, Kenji FUKUI
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Patent number: 8975506Abstract: 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: GrantFiled: October 13, 2011Date of Patent: March 10, 2015Assignee: KYOCERA CorporationInventors: Shuichi Fujii, Yosuke Inomata, Tomonari Sakamoto, Koichiro Niira, Yuko Fukawa, Hiroshi Morita, Koji Nishi, Tatsuya Yashiki, Mitsuo Yamashita, Kenji Fukui
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Publication number: 20140209152Abstract: 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: ApplicationFiled: March 28, 2014Publication date: July 31, 2014Applicant: KYOCERA CORPORATIONInventors: Shuichi FUJII, Yosuke INOMATA, Tomonari SAKAMOTO, Koichiro NIIRA, Yuko FUKAWA, Hiroshi MORITA, Koji NISHI, Tatsuya YASHIKI, Mitsuo YAMASHITA, Kenji FUKUI
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Publication number: 20120260964Abstract: 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: ApplicationFiled: October 13, 2011Publication date: October 18, 2012Applicant: KYOCERA CORPORATIONInventors: Shuichi FUJII, Yosuke INOMATA, Tomonari SAKAMOTO, Koichiro NIIRA, Yuko FUKAWA, Hiroshi MORITA, Koji NISHI, Tatsuya YASHIKI, Mitsuo YAMASHITA, Kenji FUKUI
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Patent number: 8148194Abstract: There is presented a solar cell comprising a semiconductor substrate of one conductivity-type, a layer of the opposite conductivity-type provided on a surface side of the semiconductor substrate, a surface electrode formed thereon, and a backside electrode formed on a backside of the semiconductor substrate, wherein the semiconductor substrate is formed with protrusions and recesses on the surface side thereof, and spaces that are filled with a glass component of an electrode material of the surface electrode are present in bottom portions of the recesses. This arrangement has eliminated a conventional problem in that silver in the electrode material gets into the bottom portions of the recesses and causes defects to be generated in the recesses due to stress generated during forming of the electrode.Type: GrantFiled: February 25, 2008Date of Patent: April 3, 2012Assignee: Kyocera CorporationInventors: Shuichi Fujii, Yasuhiro Matsubara, Yuko Fukawa
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Patent number: 7556741Abstract: 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: GrantFiled: August 27, 2003Date of Patent: July 7, 2009Assignee: Kyocera CorporationInventors: Yosuke Inomata, Yuko Fukawa
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Patent number: 7459098Abstract: 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: GrantFiled: August 27, 2003Date of Patent: December 2, 2008Assignee: Kyocera CorporationInventors: Yosuke Inomata, Yuko Fukawa
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Publication number: 20080283115Abstract: A solar cell module, comprising a front surface member 1 having translucency, a rear surface member 5, an intermediate member 7 formed of an insulator disposed between the front surface member 1 and the rear surface member 5, a first solar cell element group 8a disposed between the front surface member 1 and the intermediate member 7 with its light receiving surface facing the front surface member 1, and a second solar cell element group 8b disposed between the rear surface member 5 and the intermediate member 7 with its light receiving surface facing the rear surface member 5. Accordingly, light incident on both surfaces can be effectively utilized for power generation by a simple structure. The solar cell module thus provided can increases a power generating efficiency per unit area, is less affected by the surrounding adverse environment, and is adapted to the environment in which the module is installed.Type: ApplicationFiled: January 28, 2005Publication date: November 20, 2008Inventors: Yuko Fukawa, Kenji Fukui
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Publication number: 20080220559Abstract: There is presented a solar cell comprising a semiconductor substrate of one conductivity-type, a layer of the opposite conductivity-type provided on a surface side of the semiconductor substrate, a surface electrode formed thereon, and a backside electrode formed on a backside of the semiconductor substrate, wherein the semiconductor substrate is formed with protrusions and recesses on the surface side thereof, and spaces that are filled with a glass component of an electrode material of the surface electrode are present in bottom portions of the recesses. This arrangement has eliminated a conventional problem in that silver in the electrode material gets into the bottom portions of the recesses and causes defects to be generated in the recesses due to stress generated during forming of the electrode.Type: ApplicationFiled: February 25, 2008Publication date: September 11, 2008Inventors: Shuichi Fujii, Yasuhiro Matsubara, Yuko Fukawa
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Publication number: 20070295381Abstract: 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: ApplicationFiled: March 29, 2005Publication date: December 27, 2007Applicant: Kyocera CorporationInventors: Shuichi Fujii, Yosuke Inomata, Tomonari Sakamoto, Koichiro Niira, Yuko Fukawa, Hiroshi Morita, Koji Nishi, Tatsuya Yashi, Mitsuo Yamashita, Kenji Fukui
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Publication number: 20070163634Abstract: A solar cell includes: a semiconductor substrate having a light receiving surface, an anti-light receiving surface, and a side surface; a front-side electrode formed on a side of the light receiving surface of the semiconductor substrate; and a rear-side electrode formed on a side of the anti-light receiving surface of the semiconductor substrate. An identification mark is provided to at least one of a portion on the side of the light receiving surface, a portion on the side of the anti-light receiving surface, and the side surface of the semiconductor substrate.Type: ApplicationFiled: July 12, 2006Publication date: July 19, 2007Inventors: Yoshifumi Wada, Shinichi Miki, Nobuo Kitamura, Teruo Ogino, Yuko Fukawa
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Publication number: 20040200522Abstract: There is disclosed a solar cell element which comprises a semiconductor substrate 1; an antireflective film 3 formed on a light-receiving surface of the semiconductor substrate 1; a surface electrode 5 formed on the light-receiving surface of the semiconductor substrate 1; a back surface electrode 6 formed on a non-light receiving surface of the semiconductor substrate; a first solder layer 8 covering the surface electrode 5; and a second solder layer 9 covering the back surface electrode 6. Two or more elements selected from a plurality of elements included in the surface electrode 5 and two or more elements selected from a plurality of elements included in the first solder layer 8 are each identical to one another, which are, for example, Ag and Ti or P. The adhesion strength between the electrode and solder can be enhanced by this arrangement.Type: ApplicationFiled: March 16, 2004Publication date: October 14, 2004Applicant: KYOCERA CORPORATIONInventors: Yuko Fukawa, Shuichi Fujii, Takashi Tsuge
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Publication number: 20040079725Abstract: 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: ApplicationFiled: August 27, 2003Publication date: April 29, 2004Applicant: KYOCERA CORPORATIONInventors: Yosuke Inomata, Yuko Fukawa
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Publication number: 20040069412Abstract: 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: ApplicationFiled: August 27, 2003Publication date: April 15, 2004Applicant: KYOCERA CORPORATIONInventors: Yosuke Inomata, Yuko Fukawa
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Publication number: 20030178057Abstract: There is presented a solar cell comprising a semiconductor substrate of one conductivity-type, a layer of the opposite conductivity-type provided on a surface side of the semiconductor substrate, a surface electrode formed thereon, and a backside electrode formed on a backside of the semiconductor substrate, wherein the semiconductor substrate is formed with protrusions and recesses on the surface side thereof, and spaces that are filled with a glass component of an electrode material of the surface electrode are present in bottom portions of the recesses. This arrangement has eliminated a conventional problem in that silver in the electrode material gets into the bottom portions of the recesses and causes defects to be generated in the recesses due to stress generated during forming of the electrode.Type: ApplicationFiled: October 22, 2002Publication date: September 25, 2003Inventors: Shuichi Fujii, Yasuhiro Matsubara, Yuko Fukawa