Patents by Inventor Michiharu Eta
Michiharu Eta 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: 10781036Abstract: A glass roll includes a glass film formed by a downdraw method. The glass film is wound into a roll using a winding roller in a state in which front and back glass surfaces of the glass film formed in the forming operation are exposed, and during the winding operation, the glass film is superposed on a separable protective sheet. The protective sheet extends beyond both sides in a width direction of the glass film. The protective sheet can further be wound on an outer peripheral surface of the glass film by winding only the protective sheet from a trailing end of the glass film in a winding direction of the glass film.Type: GrantFiled: July 10, 2014Date of Patent: September 22, 2020Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Masahiro Tomamoto, Michiharu Eta, Hidetaka Oda, Tatsuya Takaya, Yasuo Yamazaki, Hiroshi Takimoto, Shinichi Ishibashi, Keiji Takagi, Daisuke Nagata, Takahide Nakamura, Toru Sakurabayashi, Katsutoshi Fujiwara, Mitsuharu Noda, Yasuhiko Ogiso, Takahide Fujii
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Patent number: 10562727Abstract: A roll-to-roll apparatus reliably reduces breakage of a glass film even in a case of sequentially performing predetermined processing on the glass film. Provided is a glass roll (1) formed by winding a glass film (2) into a roll, in which a resin film (4) is attached onto the glass film (2), and at least a part of the resin film (4) is arranged on a front side of an unwinding direction relative to a leading end portion in the unwinding direction of the glass film (2).Type: GrantFiled: September 30, 2015Date of Patent: February 18, 2020Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Yasuo Teranishi, Kaoru Mitsugi, Yoshinori Hasegawa, Michiharu Eta
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Patent number: 10279568Abstract: Provided is a laminate (1) obtained by integrally laminating glass sheets (4) on both surfaces of a resin sheet (2). The glass sheets (4) have a thickness of 300 ?m or less and end surfaces (4a) of the glass sheets (4) are chamfered.Type: GrantFiled: December 14, 2015Date of Patent: May 7, 2019Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Yoshiharu Miwa, Yoshinori Hasegawa, Takayuki Noda, Hiroki Mori, Michiharu Eta
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Patent number: 10189736Abstract: A method of manufacturing a glass roll, includes: a forming step (S1) of forming, while conveying a glass film, the glass film by a downdraw method; a temporary rolling step (S3) of rolling the glass film while superposing a protective film on the glass film at a downstream end of a path of the conveying in the forming step (S1), to thereby manufacture a source glass roll; and a main rolling step (S4) of unrolling, while conveying the glass film to a downstream side, the glass film from the source glass roll, and then rerolling the glass film while superposing a protective film on the glass film at a downstream end of a path of the conveying, to thereby manufacture a glass roll. Higher tension in a rolling direction is applied to the glass film in the main rolling step (S4) than in the temporary rolling step (S3).Type: GrantFiled: February 28, 2017Date of Patent: January 29, 2019Assignee: NIPPON ELECTRIC GLASS CO., LTDInventors: Kaoru Mitsugi, Hiromichi Umemura, Michiharu Eta, Yasuo Teranishi, Yoshinori Hasegawa, Koichi Mori, Hiroki Mori
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Patent number: 9931816Abstract: A glass roll reliably prevents a glass film from breaking from an end surface of the glass film as an origin of breakage. The glass roll is formed by winding the glass film into a roll while superposing the glass film on a protective sheet. The glass film is formed by an overflow downdraw method to have a thickness of 1 ?m or more and 200 ?m or less, and has each end surface in a width direction formed as a cut surface cut by laser splitting.Type: GrantFiled: September 30, 2009Date of Patent: April 3, 2018Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Masahiro Tomamoto, Michiharu Eta, Hidetaka Oda, Tatsuya Takaya, Yasuo Yamazaki, Hiroshi Takimoto, Shinichi Ishibashi, Keiji Takagi, Daisuke Nagata, Takahide Nakamura, Toru Sakurabayashi, Katsutoshi Fujiwara, Mitsuharu Noda, Yasuhiko Ogiso, Takahide Fujii
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Patent number: 9927893Abstract: A glass film laminate (1) for a touch panel includes a glass film (2), a glass film (3), a glass film (4), and transparent adhesive layers (5). The glass films (2), (4) form both outermost layers. The glass film (3) has a transparent conductive layer (6) formed on each of both surfaces thereof. The glass films (2), (3), (4) each have a thickness of 200 ?m or less. The glass film laminate (1) for a touch panel itself assumes a curved state without the application of an external force, in which a curved concave surface (21) and a curved convex surface (41) are formed. The curved concave surface (21) has formed therein a compressive stress, and the curved convex surface (41) has formed therein a tensile stress.Type: GrantFiled: September 25, 2013Date of Patent: March 27, 2018Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Seiji Hamada, Hiroyuki Uchida, Hiroaki Tanaka, Michiharu Eta
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Patent number: 9840028Abstract: Provided is a cleaving method for a glass film (G) including: cleaving, during conveyance of the glass film (G) in a predetermined direction, the glass film (G) continuously along a preset cleaving line (8) extending in a predetermined conveying direction (a) by a thermal stress generated through localized heating performed along the preset cleaving line (8) and through cooling of a locally heated region (H); dividing the glass film (G) in a width direction of the glass film (G); diverting, after the dividing, adjacent divided glass films (10), which are obtained by the dividing, so that the adjacent divided glass films (10) are separated in a front and rear direction of the adjacent divided glass films; and forming a predetermined widthwise clearance between the adjacent divided glass films after the dividing of the glass film (G) and before the diverting of the adjacent divided glass films (10).Type: GrantFiled: August 1, 2011Date of Patent: December 12, 2017Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Yasuhiro Matsumoto, Koichi Mori, Hiroshi Naruse, Michiharu Eta, Hiroki Mori
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Patent number: 9764979Abstract: Provided is a cutting method for a glass sheet, comprising radiating a laser beam to a cutting portion (C) of a glass sheet (G) having a thickness of 500 ?m or less to fuse the glass sheet (G), wherein a narrowest gap between fused end surfaces (Ga1 and Gb1) of the glass sheet (G), which face each other in the cutting portion (C), is managed to satisfy a relationship of 0.1?b/a?2, where “a” is a thickness of the glass sheet (G) and “b” is the narrowest gap.Type: GrantFiled: June 8, 2016Date of Patent: September 19, 2017Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Takahide Fujii, Setsuo Uchida, Naotoshi Inayama, Takayuki Noda, Sho Itoh, Michiharu Eta
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Publication number: 20170166472Abstract: A method of manufacturing a glass roll, includes: a forming step (S1) of forming, while conveying a glass film, the glass film by a downdraw method; a temporary rolling step (S3) of rolling the glass film while superposing a protective film on the glass film at a downstream end of a path of the conveying in the forming step (S1), to thereby manufacture a source glass roll; and a main rolling step (S4) of unrolling, while conveying the glass film to a downstream side, the glass film from the source glass roll, and then rerolling the glass film while superposing a protective film on the glass film at a downstream end of a path of the conveying, to thereby manufacture a glass roll. Higher tension in a rolling direction is applied to the glass film in the main rolling step (S4) than in the temporary rolling step (S3).Type: ApplicationFiled: February 28, 2017Publication date: June 15, 2017Applicant: Nippon Electric Glass Co., Ltd.Inventors: Kaoru MITSUGI, Hiromichi UMEMURA, Michiharu ETA, Yasuo TERANISHI, Yoshinori HASEGAWA, Koichi MORI, Hiroki MORI
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Patent number: 9656901Abstract: A method of manufacturing a glass roll, includes: a forming step (S1) of forming, while conveying a glass film, the glass film by a downdraw method; a temporary rolling step (S3) of rolling the glass film while superposing a protective film on the glass film at a downstream end of a path of the conveying in the forming step (S1), to thereby manufacture a source glass roll; and a main rolling step (S4) of unrolling, while conveying the glass film to a downstream side, the glass film from the source glass roll, and then rerolling the glass film while superposing a protective film on the glass film at a downstream end of a path of the conveying, to thereby manufacture a glass roll. Higher tension in a rolling direction is applied to the glass film in the main rolling step (S4) than in the temporary rolling step (S3).Type: GrantFiled: December 21, 2012Date of Patent: May 23, 2017Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Kaoru Mitsugi, Hiromichi Umemura, Michiharu Eta, Yasuo Teranishi, Yoshinori Hasegawa, Koichi Mori, Hiroki Mori
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Publication number: 20160280581Abstract: Provided is a cutting method for a glass sheet, comprising radiating a laser beam to a cutting portion (C) of a glass sheet (G) having a thickness of 500 ?m or less to fuse the glass sheet (G), wherein a narrowest gap between fused end surfaces (Ga1 and Gb1) of the glass sheet (G), which face each other in the cutting portion (C), is managed to satisfy a relationship of 0.1?b/a?2, where “a” is a thickness of the glass sheet (G) and “b” is the narrowest gap.Type: ApplicationFiled: June 8, 2016Publication date: September 29, 2016Applicant: Nippon Electric Glass Co., Ltd.Inventors: Takahide FUJII, Setsuo UCHIDA, Naotoshi INAYAMA, Takayuki NODA, Sho ITOH, Michiharu ETA
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Patent number: 9446566Abstract: Provided is a laminate (1) obtained by integrally laminating glass sheets (4) on both surfaces of a resin sheet (2). The glass sheets (4) have a thickness of 300 ?m or less and end surfaces (4a) of the glass sheets (4) are chamfered.Type: GrantFiled: May 14, 2012Date of Patent: September 20, 2016Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Yoshiharu Miwa, Yoshinori Hasegawa, Takayuki Noda, Hiroki Mori, Michiharu Eta
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Patent number: 9422184Abstract: Provided is a cutting method for a glass sheet, comprising radiating a laser beam to a cutting portion (C) of a glass sheet (G) having a thickness of 500 ?m or less to fuse the glass sheet (G), wherein a narrowest gap between fused end surfaces (Ga1 and Gb1) of the glass sheet (G), which face each other in the cutting portion (C), is managed to satisfy a relationship of 0.1?b/a?2, where “a” is a thickness of the glass sheet (G) and “b” is the narrowest gap.Type: GrantFiled: September 14, 2012Date of Patent: August 23, 2016Assignee: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Takahide Fujii, Setsuo Uchida, Naotoshi Inayama, Takayuki Noda, Sho Itoh, Michiharu Eta
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Publication number: 20160096345Abstract: Provided is a laminate (1) obtained by integrally laminating glass sheets (4) on both surfaces of a resin sheet (2). The glass sheets (4) have a thickness of 300 ?m or less and end surfaces (4a) of the glass sheets (4) are chamfered.Type: ApplicationFiled: December 14, 2015Publication date: April 7, 2016Inventors: Yoshiharu MIWA, Yoshinori HASEGAWA, Takayuki NODA, Hiroki MORI, Michiharu ETA
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Publication number: 20160016746Abstract: A roll-to-roll apparatus reliably reduces breakage of a glass film even in a case of sequentially performing predetermined processing on the glass film. Provided is a glass roll (1) formed by winding a glass film (2) into a roll, in which a resin film (4) is attached onto the glass film (2), and at least a part of the resin film (4) is arranged on a front side of an unwinding direction relative to a leading end portion in the unwinding direction of the glass film (2).Type: ApplicationFiled: September 30, 2015Publication date: January 21, 2016Inventors: Yasuo TERANISHI, Kaoru MITSUGI, Yoshinori HASEGAWA, Michiharu ETA
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Publication number: 20150253914Abstract: A glass film laminate (1) for a touch panel includes a glass film (2), a glass film (3), a glass film (4), and transparent adhesive layers (5). The glass films (2), (4) form both outermost layers. The glass film (3) has a transparent conductive layer (6) formed on each of both surfaces thereof. The glass films (2), (3), (4) each have a thickness of 200 ?m or less. The glass film laminate (1) for a touch panel itself assumes a curved state without the application of an external force, in which a curved concave surface (21) and a curved convex surface (41) are formed. The curved concave surface (21) has formed therein a compressive stress, and the curved convex surface (41) has formed therein a tensile stress.Type: ApplicationFiled: September 25, 2013Publication date: September 10, 2015Applicant: Nippon Electric Glass Co., Ltd.Inventors: Seiji Hamada, Hiroyuki Uchida, Hiroaki Tanaka, Michiharu Eta
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Patent number: 9021837Abstract: A method of cleaving and separating a glass sheet includes a cleaving step of cleaving a glass sheet along preset cleaving lines by a laser cleaving method, and a separation step of separating adjacent pieces of the cleaved glass sheet from each other. The cleaving step is performed under a state in which the glass sheet is placed on support members provided respectively in segment regions, which are segmented by the preset cleaving lines. The separation step is performed by separating the support members from each other in adjacent segment regions.Type: GrantFiled: December 12, 2012Date of Patent: May 5, 2015Assignee: Nippon Electric Glass Co., Ltd.Inventors: Yasuo Teranishi, Yasuhiro Matsumoto, Michiharu Eta, Takahide Fujii, Naotoshi Inayama
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Publication number: 20150110991Abstract: Provided is a laminate (1) obtained by integrally laminating glass sheets (4) on both surfaces of a resin sheet (2). The glass sheets (4) have a thickness of 300 ?m or less and end surfaces (4a) of the glass sheets (4) are chamfered.Type: ApplicationFiled: May 14, 2012Publication date: April 23, 2015Inventors: Yoshiharu Miwa, Yoshinori Hasegawa, Takayuki Noda, Hiroki Mori, Michiharu Eta
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Patent number: 9010151Abstract: A glass sheet cutting device fuses and divides a glass substrate using a preset cutting line as a boundary while supplying an assist gas and a laser beam from above the glass substrate along the preset cutting line of the glass substrate. The glass sheet cutting device includes a first laser irradiator for radiating a fusing laser beam and a second laser irradiator for radiating an annealing laser beam. Through a fusing gap formed between fused end surfaces by fusing, the second laser irradiator radiates the annealing laser beam obliquely from above onto the fused end surface to be annealed.Type: GrantFiled: September 14, 2012Date of Patent: April 21, 2015Assignee: Nippon Electric Glass Co., Ltd.Inventors: Takahide Fujii, Setsuo Uchida, Naotoshi Inayama, Takayuki Noda, Sho Itoh, Michiharu Eta
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Patent number: 9010154Abstract: Provided is a method of cleaving and separating a glass sheet (G), the method comprising: a cleaving step of cleaving the glass sheet (G) along preset cleaving lines (X, Y) by a laser cleaving method; and a separation step of separating adjacent pieces of the cleaved glass sheet (G) from each other, wherein the cleaving step is performed under a state in which the glass sheet (G) is placed on a sheet (S) having stretchability, and the separation step is performed by stretching the sheet (S).Type: GrantFiled: December 12, 2012Date of Patent: April 21, 2015Assignee: Nippon Electric Glass Co., Ltd.Inventors: Yasuo Teranishi, Yasuhiro Matsumoto, Michiharu Eta, Takahide Fujii, Naotoshi Inayama