Patents by Inventor Yoshiya Sakaguchi
Yoshiya Sakaguchi 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: 11085712Abstract: To provide a heat-dissipating sheet having good close-contact properties with an adherend such as a heat-generating body and being easy to handle. A heat-dissipating sheet includes a heat-dissipating member including a graphite sheet, a first thermally conductive layer, and a second thermally conductive layer stacked in this order. The first thermally conductive layer contains a thermally conductive filler dispersed in a polymer matrix and has an outer shape larger than the graphite sheet when viewed in plan. The second thermally conductive layer contains a thermally conductive filler dispersed in a polymer matrix, is more flexible than the first thermally conductive layer, and has an outer shape identical to or smaller than the first thermally conductive layer when viewed in plan.Type: GrantFiled: January 19, 2018Date of Patent: August 10, 2021Assignee: SEKISUI POLYMATECH CO., LTD.Inventors: Shigeru Koyano, Yoshifumi Iimuro, Yoshiya Sakaguchi
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Patent number: 10985416Abstract: Provided is a thermal conduction sheet that is easily attached from one face to the other face of a battery cell, the faces being perpendicular to each other. Thermal conduction sheet includes graphite sheet, and insulating sheets between and with which graphite sheet is entirely sandwiched and sealed. Graphite sheet has a plurality of cut-out portions arranged linearly. Thermal conduction sheet is bent at a region where cut-out portions are formed. Thus, thermal conduction sheet is attached from one face to the other face of a battery cell, the faces being perpendicular to each other.Type: GrantFiled: June 16, 2017Date of Patent: April 20, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yoshiya Sakaguchi, Takeshi Fujii
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Patent number: 10923784Abstract: A heat-conductive sheet includes first and second insulating sheets placed on each other and a graphite sheet disposed between the first and second insulating sheets. The graphite sheet is entirely sealed by the first and second insulating sheets. The graphite sheet has a first slit provided therein. The first and second insulating sheets have a second slit passing through the first and second insulating sheets. The second slit is located inside the first slit of the graphite sheet.Type: GrantFiled: May 9, 2017Date of Patent: February 16, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yoshiya Sakaguchi, Takeshi Fujii
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Patent number: 10868346Abstract: A composite sheet includes a thermally-conductive sheet, a first insulating sheet that covers one surface of the thermally-conductive sheet, and a second insulating sheet that covers another surface of the thermally-conductive sheet, and seals the thermally-conductive sheet between the first and second insulating sheets. The thermally-conductive sheet has a first through hole provided therein. The composite sheet has an insulating lamination portion at which the first insulating sheet is stacked on the second insulating sheet to seal an inner wall surface of the first through hole. The insulating lamination portion has a second through hole provided inside the first through hole and having a hole diameter which is smaller than a hole diameter of the first through hole.Type: GrantFiled: March 9, 2017Date of Patent: December 15, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yoshiya Sakaguchi, Norihiro Kawamura
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Patent number: 10756314Abstract: A composite sheet includes a thermally-conductive sheet, a first insulating sheet that covers one surface of the thermally-conductive sheet; a second insulating sheet that covers another surface of the thermally-conductive sheet, and seals the thermally-conductive sheet between the first insulating sheet and the second insulating sheet, and a thermal insulation layer that is laminated between the thermally-conductive sheet and the first insulating sheet to cover at least a part of the thermally-conductive sheet.Type: GrantFiled: March 9, 2017Date of Patent: August 25, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yoshiya Sakaguchi, Norihiro Kawamura
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Patent number: 10689556Abstract: Provided is a thermally conductive sheet including an oriented-graphite thermally conductive layer and an insulating thermally conductive layer stacked on the oriented-graphite thermally conductive layer, the oriented-graphite thermally conductive layer including a polymer matrix including a plate-like graphite powder, flat surfaces of particles of the plate-like graphite powder being oriented in the thickness direction of the sheet, the insulating thermally conductive layer including a polymer matrix including an insulating thermally conductive filler dispersed in the polymer matrix, the insulating thermally conductive layer having a thermal conductivity and an insulating property. The thermally conductive sheet has a high thermal conductivity and an insulating property, is capable of being readily fixed to an adherend, and is easy to handle.Type: GrantFiled: May 20, 2016Date of Patent: June 23, 2020Assignees: Sekisui Polymatch Co., Ltd., Panasonic Intellectual Property Management Co., Ltd.Inventors: Yasuyoshi Watanabe, Yoshiya Sakaguchi, Masafumi Nakayama
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Publication number: 20190390926Abstract: To provide a heat-dissipating sheet having good close-contact properties with an adherend such as a heat-generating body and being easy to handle. A heat-dissipating sheet includes a heat-dissipating member including a graphite sheet, a first thermally conductive layer, and a second thermally conductive layer stacked in this order. The first thermally conductive layer contains a thermally conductive filler dispersed in a polymer matrix and has an outer shape larger than the graphite sheet when viewed in plan. The second thermally conductive layer contains a thermally conductive filler dispersed in a polymer matrix, is more flexible than the first thermally conductive layer, and has an outer shape identical to or smaller than the first thermally conductive layer when viewed in plan.Type: ApplicationFiled: January 19, 2018Publication date: December 26, 2019Applicants: SEKISUI POLYMATECH CO., LTD., Panasonic Intellectual Property Management Co., Ltd.Inventors: Shigeru KOYANO, Yoshifumi IIMURO, Yoshiya SAKAGUCHI
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Publication number: 20190372181Abstract: Provided is a thermal conduction sheet that is easily attached from one face to the other face of a battery cell, the faces being perpendicular to each other. Thermal conduction sheet includes graphite sheet, and insulating sheets between and with which graphite sheet is entirely sandwiched and sealed. Graphite sheet has a plurality of cut-out portions arranged linearly. Thermal conduction sheet is bent at a region where cut-out portions are formed. Thus, thermal conduction sheet is attached from one face to the other face of a battery cell, the faces being perpendicular to each other.Type: ApplicationFiled: June 16, 2017Publication date: December 5, 2019Inventors: YOSHIYA SAKAGUCHI, TAKESHI FUJII
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Patent number: 10476102Abstract: A battery includes a case, at least one of a first battery cell and a second battery cell disposed in the case, and a graphite sheet disposed at at least one of a position between the case and the first battery cell and a position between the first battery cell and the second battery cell. The graphite sheet has a terminal portion for taking out an electrical signal.Type: GrantFiled: December 9, 2015Date of Patent: November 12, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Takeshi Fujii, Koji Sakai, Kazushi Yoshida, Yoshiya Sakaguchi, Yuuichi Abe
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Patent number: 10438866Abstract: A heat-insulating sheet includes a heat storage sheet, a first insulating sheet, and a thermally conductive sheet. The heat storage sheet contains a first resin and a plurality of microcapsules containing latent heat storage material and mixed in the form of aggregates with each other. The first insulating sheet has a first face bonded to the heat storage sheet and a second face opposite to the first face. The thermally conductive sheet is bonded to the second face of the first insulating sheet. The content of the microcapsules in the heat storage sheet is falls within a range from 40 wt % to 90 wt %, inclusive. The heat storage sheet includes a layer free from the microcapsules at a portion in contact with the first insulating sheet.Type: GrantFiled: January 8, 2014Date of Patent: October 8, 2019Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Masafumi Nakayama, Yoshiya Sakaguchi, Hirofumi Yamada
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Patent number: 10244657Abstract: A thermal insulation sheet includes a heat storage sheet, an insulation sheet affixed to the heat storage sheet, and a highly-thermoconductive sheet affixed to the insulation sheet. The heat storage sheet contains a resin and powdery microcapsules mixed with the resin. The powdery microcapsules encapsulate latent-heat storage agent. The heat storage sheet has a void ratio not less than 10% and not more than 30%. Or, the heat storage sheet may have surface roughness Ra not less than 2 ?m and not more than 20 ?m. The thermal insulation sheet suppresses or retards transferring of heat generated in a heat-generating component to outside, and suppresses a rapid rising of a temperature of the heat-generating component.Type: GrantFiled: September 1, 2014Date of Patent: March 26, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Masafumi Nakayama, Yoshiya Sakaguchi, Hirofumi Yamada
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Patent number: 10211492Abstract: An electronic apparatus includes a heat generating component, a first battery, a second battery, a heat conductive sheet, and a heat insulating layer. The second battery is disposed between the heat generating component and the first battery. The heat conductive sheet thermally couples the heat generating component to the first battery. The heat insulating layer is disposed between the heat conductive sheet and the second battery.Type: GrantFiled: December 17, 2014Date of Patent: February 19, 2019Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yoshiya Sakaguchi, Kazuo Kimura, Kazuhiko Kubo
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Publication number: 20190051953Abstract: A heat-conductive sheet includes first and second insulating sheets placed on each other and a graphite sheet disposed between the first and second insulating sheets. The graphite sheet is entirely sealed by the first and second insulating sheets. The graphite sheet has a first slit provided therein. The first and second insulating sheets have a second slit passing through the first and second insulating sheets. The second slit is located inside the first slit of the graphite sheet.Type: ApplicationFiled: May 9, 2017Publication date: February 14, 2019Inventors: YOSHIYA SAKAGUCHI, TAKESHI FUJII
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Publication number: 20190013556Abstract: A composite sheet includes a thermally-conductive sheet, a first insulating sheet that covers one surface of the thermally-conductive sheet, and a second insulating sheet that covers another surface of the thermally-conductive sheet, and seals the thermally-conductive sheet between the first and second insulating sheets. The thermally-conductive sheet has a first through hole provided therein. The composite sheet has an insulating lamination portion at which the first insulating sheet is stacked on the second insulating sheet to seal an inner wall surface of the first through hole. The insulating lamination portion has a second through hole provided inside the first through hole and having a hole diameter which is smaller than a hole diameter of the first through hole.Type: ApplicationFiled: March 9, 2017Publication date: January 10, 2019Inventors: YOSHIYA SAKAGUCHI, NORIHIRO KAWAMURA
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Publication number: 20190006642Abstract: A composite sheet includes a thermally-conductive sheet, a first insulating sheet that covers one surface of the thermally-conductive sheet; a second insulating sheet that covers another surface of the thermally-conductive sheet, and seals the thermally-conductive sheet between the first insulating sheet and the second insulating sheet, and a thermal insulation layer that is laminated between the thermally-conductive sheet and the first insulating sheet to cover at least a part of the thermally-conductive sheet.Type: ApplicationFiled: March 9, 2017Publication date: January 3, 2019Inventors: YOSHIYA SAKAGUCHI, NORIHIRO KAWAMURA
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Patent number: 10072988Abstract: A temperature-detecting device includes a thermally conductive sheet, a heat-generating body thermally connected to a first end portion of the thermally conductive sheet, and a temperature-detecting element thermally connected to a second end portion of the thermally conductive sheet. This temperature-detecting device is also provided with thermally insulating layers on the top and bottom faces of the thermally conductive sheet between the first and second end portions thereof.Type: GrantFiled: December 18, 2014Date of Patent: September 11, 2018Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Yoshiya Sakaguchi, Kazuhiko Kubo
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Publication number: 20180163112Abstract: Provided is a thermally conductive sheet including an oriented-graphite thermally conductive layer and an insulating thermally conductive layer stacked on the oriented-graphite thermally conductive layer, the oriented-graphite thermally conductive layer including a polymer matrix including a plate-like graphite powder, flat surfaces of particles of the plate-like graphite powder being oriented in the thickness direction of the sheet, the insulating thermally conductive layer including a polymer matrix including an insulating thermally conductive filler dispersed in the polymer matrix, the insulating thermally conductive layer having a thermal conductivity and an insulating property. The thermally conductive sheet has a high thermal conductivity and an insulating property, is capable of being readily fixed to an adherend, and is easy to handle.Type: ApplicationFiled: May 20, 2016Publication date: June 14, 2018Applicants: POLYMATECH JAPAN CO., LTD., PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yasuyoshi Watanabe, Yoshiya Sakaguchi, Masafumi NAKAYAMA
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Publication number: 20170345734Abstract: The thermally conductive sheet includes a sheet-like formed body produced by curing a mixed composition containing an uncured polymer matrix, a flat graphite powder, and a thermally conductive filler having an aspect ratio of 2 or less, flat surfaces of particles of the flat graphite powder being aligned in a thickness direction of the sheet. The thermally conductive sheet contains the thermally conductive filler together with the flat graphite powder and thus contains the thermally conductive material densely charged and has good flexibility and good tackiness on the surfaces of the sheet.Type: ApplicationFiled: December 1, 2015Publication date: November 30, 2017Applicants: POLYMATECH JAPAN CO., LTD., PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yasuyoshi Watanabe, Yoshiya Sakaguchi, Masafumi Nakayama
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Publication number: 20170324110Abstract: A battery includes a case, at least one of a first battery cell and a second battery cell disposed in the case, and a graphite sheet disposed at at least one of a position between the case and the first battery cell and a position between the first battery cell and the second battery cell. The graphite sheet has a terminal portion for taking out an electrical signal.Type: ApplicationFiled: December 9, 2015Publication date: November 9, 2017Inventors: TAKESHI FUJII, KOJI SAKAI, KAZUSHI YOSHIDA, YOSHIYA SAKAGUCHI, YUUICHI ABE
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Publication number: 20170003175Abstract: A temperature-detecting device includes a thermally conductive sheet, a heat-generating body thermally connected to a first end portion of the thermally conductive sheet, and a temperature-detecting element thermally connected to a second end portion of the thermally conductive sheet. This temperature-detecting device is also provided with thermally insulating layers on the top and bottom faces of the thermally conductive sheet between the first and second end portions thereof.Type: ApplicationFiled: December 18, 2014Publication date: January 5, 2017Inventors: YOSHIYA SAKAGUCHI, KAZUHIKO KUBO