Patents by Inventor Takanobu Murofushi
Takanobu Murofushi 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: 20180337297Abstract: A solar cell module includes a light-receiving surface-side protective member, a rear surface-side protective member, solar cell elements, and an encapsulating layer that encapsulates the solar cell elements between the light-receiving surface-side protective member and the rear surface-side protective member. The light-receiving surface-side protective member has a plurality of fine recess portions and a plurality of fine protrusion portions on at least a solar cell element side surface, busbar electrodes are provided to the solar cell elements on at least a light-receiving surface-side surface. The encapsulating layer has a light-receiving surface side-encapsulating layer having an effective thickness of 0.01 mm to less than 0.25 mm and a rear surface-side encapsulating layer, and the solar cell elements are encapsulated between the light-receiving surface side-encapsulating layer and the rear surface-side encapsulating layer.Type: ApplicationFiled: November 18, 2016Publication date: November 22, 2018Applicant: Mitsui Chemicals Tohcello, Inc.Inventors: Takanobu MUROFUSHI, Jun TOKUHIRO
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Publication number: 20180237620Abstract: A photo-crosslinkable ethylene-based resin composition of the present invention includes an ethylene-based copolymer having a Shore A hardness measured in accordance with ASTM D2240 of equal to or more than 55 and equal to or less than 95, a photo-crosslinking initiator, and a crosslinking aid, in which the content of the crosslinking aid is equal to or more than 0.1 parts by mass and less than 2.0 parts by mass with respect to 100 parts by mass of the ethylene-based copolymer.Type: ApplicationFiled: August 3, 2016Publication date: August 23, 2018Applicant: MITSUI CHEMICALS TOHCELLO, INC.Inventors: Takanobu MUROFUSHI, Jun TOKUHIRO, Shigenobu IKENAGA
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Publication number: 20170317222Abstract: Disclosed is a solar cell module including an n-type crystalline silicon-based solar cell element as a power generation element, in which at least one surface of the n-type crystalline silicon-based solar cell element is encapsulated with a solar-cell encapsulating material including an ethylene•?-olefin copolymer satisfying the following requirements a1) to a4). a1) A content proportion of a structural unit derived from ethylene is in a range of 80 to 90 mol %, and a content proportion of a structural unit derived from an ?-olefin having 3 to 20 carbon atoms is in a range of 10 to 20 mol %. a2) MFR measured under defined conditions is in a range of 0.1 to 50 g/10 minutes. a3) A density, which is measured under defined conditions in a range of 0.865 to 0.884 g/cm3. a4) A Shore A hardness, which is measured under defined conditions is in a range of 60 to 85.Type: ApplicationFiled: November 18, 2015Publication date: November 2, 2017Applicant: MITSUI CHEMICALS TOHCELLO, INC.Inventors: Takanobu MUROFUSHI, Jun TOKUHIRO
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Publication number: 20170204249Abstract: According to the present invention, a resin composition for a solar-cell encapsulating material includes an ethylene•?-olefin copolymer of which an MFR measured based on ASTM D1238 under conditions of 190° C. and a load of 2.16 kg is equal to or less than 10 g/10 minutes, a silane coupling agent, and a hindered amine-based photostabilizer. pH of the hindered amine-based photostabilizer, which is measured by using the following measuring method is equal to or less than 9.0. In the measuring method, the pH is measured by using a potential difference measuring device and by using a solution which contains 10 g of acetone, 1 g of water, and 0.01 g of the hindered amine-based photostabilizer, as a sample.Type: ApplicationFiled: June 22, 2015Publication date: July 20, 2017Applicant: MITSUI CHEMICALS TOHCELLO, INC.Inventors: Takanobu MUROFUSHI, Jun TOKUHIRO
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Patent number: 9520518Abstract: Provided is a solar cell module wherein a rear surface protective sheet has excellent long-term durability, and transmissivity of ultraviolet that reaches the solar cell is retained for a long time. This solar cell module is configured by laminating a front surface protective sheet, a light receiving-side sealing sheet, a solar cell element, a rear surface-side sealing sheet, and a rear surface protective sheet in this order. The solar cell module is characterized in that the light receiving-side sealing sheet has a transmissivity of 50% or more with respect to light having a wavelength of 300 nm, and the rear surface-side sealing sheet contains a reactive ultraviolet absorbent.Type: GrantFiled: May 15, 2013Date of Patent: December 13, 2016Assignee: MITSUI CHEMICALS TOHCELLO, INC.Inventor: Takanobu Murofushi
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Publication number: 20150144193Abstract: Provided is a solar cell module wherein a rear surface protective sheet has excellent long-term durability, and transmissivity of ultraviolet that reaches the solar cell is retained for a long time. This solar cell module is configured by laminating a front surface protective sheet, a light receiving-side sealing sheet, a solar cell element, a rear surface-side sealing sheet, and a rear surface protective sheet in this order. The solar cell module is characterized in that the light receiving-side sealing sheet has a transmissivity of 50% or more with respect to light having a wavelength of 300 nm, and the rear surface-side sealing sheet contains a reactive ultraviolet absorbent.Type: ApplicationFiled: May 15, 2013Publication date: May 28, 2015Inventor: Takanobu Murofushi
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Patent number: 8945701Abstract: An ethylene resin composition is provided which has excellent properties including adhesion properties, electrically insulating properties, transparency, moldability and process stability and can be produced without requiring any cross-linking procedure if necessary to improve productivity; and others. The ethylene resin composition contains a modified product produced by modifying an ethylene polymer (A) that meets all of the requirements a) to e) mentioned below with an ethylenically unsaturated silane compound (B). a) The density is 900 to 940 kg/m3. b) The melting peak temperature is 90 to 125 ° C. as determined by DSC. c) The melt flow rate (MFR2) is 0.1 to 100 g/10 minutes as measured at 190 ° C. and a load of 2.16 kg in accordance with JIS K-6721. d) The Mw/Mn ratio is 1.2 to 3.5. e) The content of metal residues is 0.1 to 50 ppm.Type: GrantFiled: May 31, 2010Date of Patent: February 3, 2015Assignee: Mitsui Chemicals Tohcello, Inc.Inventors: Shigenobu Ikenaga, Takashi Hakuta, Kazuhiro Yarimizu, Hiroshi Mori, Takanobu Murofushi, Hirofumi Zenkoh, Jun Tokuhiro, Fumito Takeuchi
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Patent number: 8772625Abstract: Disclosed is an encapsulating material for solar cell containing an ethylene/?-olefin copolymer satisfying the following requirements (a1) to (a4): (a1) the content ratio of structural units derived from ethylene is from 80 to 90 mol % and the content ratio of structural units derived from ?-olefin having 3 to 20 carbon atoms is from 10 to 20 mol %; (a2) MFR is from 10 to 50 g/10 minutes as measured under the conditions of a temperature of 190 degrees centigrade and a load of 2.16 kg in accordance with ASTM D1238; (a3) the density is from 0.865 to 0.884 g/cm3 as measured in accordance with ASTM D1505; and (a4) the shore A hardness is from 60 to 85 as measured in accordance with ASTM D2240.Type: GrantFiled: October 7, 2011Date of Patent: July 8, 2014Assignees: Mitsui Chemicals, Inc., Mitsui Chemicals Tohcello, Inc.Inventors: Shigenobu Ikenaga, Fumito Takeuchi, Keiji Watanabe, Jun Tokuhiro, Takanobu Murofushi, Kazuhiro Yarimizu, Tomoaki Ito, Nobuhiro Maruko
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Publication number: 20130167911Abstract: Disclosed is an encapsulating material for solar cell containing an ethylene/?-olefin copolymer satisfying the following requirements (a1) to (a4): (a1) the content ratio of structural units derived from ethylene is from 80 to 90 mol % and the content ratio of structural units derived from ?-olefin having 3 to 20 carbon atoms is from 10 to 20 mol %; (a2) MFR is from 10 to 50 g/10 minutes as measured under the conditions of a temperature of 190 degrees centigrade and a load of 2.16 kg in accordance with ASTM D1238; (a3) the density is from 0.865 to 0.884 g/cm3 as measured in accordance with ASTM D1505; and (a4) the shore A hardness is from 60 to 85 as measured in accordance with ASTM D2240.Type: ApplicationFiled: October 7, 2011Publication date: July 4, 2013Applicant: MITSUI CHEMICALS, INC.Inventors: Shigenobu Ikenaga, Fumito Takeuchi, Keiji Watanabe, Jun Tokuhiro, Takanobu Murofushi, Kazuhiro Yarimizu, Tomoaki Ito, Nobuhiro Maruko
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Publication number: 20120073631Abstract: The purpose of the present invention is to provide an ethylene resin composition which has excellent properties including adhesion properties, electrically insulating properties, transparency, moldability and process stability and can be produced without requiring any cross-linking procedure if necessary to improve productivity; and others. The ethylene resin composition contains a modified product produced by modifying an ethylene polymer (A) that meets all of the requirements a) to e) mentioned below with an ethylenically unsaturated silane compound (B). a) The density is 900 to 940 kg/m3. b) The melting peak temperature is 90 to 125 DEG C as determined by DSC. c) The melt flow rate (MFR2) is 0.1 to 100 g/10 minutes as measured at 190° C. and a load of 2.16 kg in accordance with JIS K-6721. d) The Mw/Mn ratio is 1.2 to 3.5. e) The content of metal residues is 0.1 to 50 ppm.Type: ApplicationFiled: May 31, 2010Publication date: March 29, 2012Applicant: MITSUI CHEMICALS, INC.Inventors: Shigenobu Ikenaga, Takashi Hakuta, Kazuhiro Yarimizu, Hiroshi Mori, Takanobu Murofushi, Hirofumi Zenkoh, Jun Tokuhiro, Fumito Takeuchi
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Publication number: 20120073655Abstract: A package for storing or transporting a solar cell sealing film includes: the solar cell sealing film containing a silane compound and/or a silane-modified resin; and a package bag packaging the solar cell sealing film. The absolute humidity inside the package is 1 to 15 g/m3. The package can store or transport the solar cell sealing film while adhesive force thereof with a substrate, solar cells, etc. is kept at a practicable level or higher. Furthermore, the package can reduce the breakage of the solar cells caused by an external shock while a solar cell module operates and the corrosion of electrodes caused by water etc. from the atmosphere.Type: ApplicationFiled: June 4, 2010Publication date: March 29, 2012Applicant: Mitsui Chemicals, Inc.Inventors: Hiroshi Mori, Takanobu Murofushi, Shigenobu Ikenaga, Takashi Hakuta, Hirofumi Zenkoh