Patents by Inventor Yoshikatsu INAGAKI
Yoshikatsu INAGAKI 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: 11933543Abstract: A heat sink includes: a container having a cavity inside and a first surface and a second surface opposite the first surface; a working fluid encapsulated in the cavity; and a steam flow path in the cavity where the working fluid in a gas phase flows, the first surface having a flat part and a protruding part projecting from the flat part in an external direction, causing the container to have a flat portion and a protruding portion projecting from the flat portion in the external direction, an inner space of the protruding portion of the container being in communication with an inner space of the flat portion, causing the cavity to be formed, and a first heat radiating fin being provided on an exterior of the flat part of the first surface and a second heat radiating fin being provided on an exterior of the second surface.Type: GrantFiled: October 21, 2022Date of Patent: March 19, 2024Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Kenya Kawabata, Masahiro Meguro, Ryo Tsubata, Hirofumi Aoki, Yoshikatsu Inagaki, Hiroshi Sakai, Hideaki Kawabata
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Patent number: 11874068Abstract: A vapor chamber has: a container in which a cavity portion is formed in an inside; a wick structure provided in the cavity portion; a working fluid enclosed in the cavity portion; a vapor flow path which is formed in the cavity portion and through which the working fluid in a gas phase flows; and a hydrogen occlusion metal that is disposed in the cavity portion and absorbs hydrogen at 350° C. or lower and does not release hydrogen at 350° C. or lower, the hydrogen occlusion metal being coated in a region in contact with the working fluid in an inner surface of the cavity portion and/or the wick structure.Type: GrantFiled: November 8, 2022Date of Patent: January 16, 2024Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Yoshikatsu Inagaki, Hirofumi Aoki
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Patent number: 11867467Abstract: A cooling device includes a heat-radiating fin group having a plurality of heat-radiating fins that are arranged parallel to each other in a first direction; first heat pipes, one end of each first heat pipe being configured to be thermally connected to a first heat-generating element, another end of each first heat pipe being thermally connected to the heat-radiating fin group; and second heat pipes, one end of each second heat pipe being configured to be thermally connected to a second heat-generating element, another end of each second heat pipe being thermally connected to the heat-radiating fin group, wherein respective inserted another ends of the first and second heat pipes are disposed on a plane parallel to the first direction and defined in the heat-radiating fin group and have portions parallel to the first direction.Type: GrantFiled: June 23, 2021Date of Patent: January 9, 2024Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Shinichi Ito, Masahiro Meguro, Kenya Kawabata, Yoshikatsu Inagaki
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Patent number: 11828539Abstract: Provided is a heat pipe which is installed in a cold region in a bottom heat posture in which a longitudinal direction of a container is substantially in parallel with a gravitational direction, is capable of preventing the container from deforming even when a working fluid has become frozen, and has excellent heat transport properties.Type: GrantFiled: July 8, 2022Date of Patent: November 28, 2023Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Yoshikatsu Inagaki, Hirofumi Aoki, Kazuya Takahashi, Shinichi Ito, Shuta Hikichi
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Publication number: 20230269910Abstract: A vapor chamber including a container having a cavity portion formed inside, and including a first surface and a second surface opposing the first surface, a working fluid sealed in the cavity portion, and a vapor flow path through which the working fluid in a gas phase flows, the vapor flow path being provided in the cavity portion, wherein a container inner surface area increasing unit including a protruding part is formed on an inner surface of the first surface, and a first wick structure is provided on a surface of the protruding part.Type: ApplicationFiled: April 27, 2023Publication date: August 24, 2023Applicant: Furukawa Electric Co., Ltd.Inventors: Kenya KAWABATA, Yoshikatsu INAGAKI, Hirofumi AOKI, Hiroshi OKADA, Yosuke WATANABE, Hideaki KAWABATA
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Publication number: 20230106794Abstract: A heat sink includes: a container having a cavity inside and a first surface and a second surface opposite the first surface; a working fluid encapsulated in the cavity; and a steam flow path in the cavity where the working fluid in a gas phase flows, the first surface having a flat part and a protruding part projecting from the flat part in an external direction, causing the container to have a flat portion and a protruding portion projecting from the flat portion in the external direction, an inner space of the protruding portion of the container being in communication with an inner space of the flat portion, causing the cavity to be formed, and a first heat radiating fin being provided on an exterior of the flat part of the first surface and a second heat radiating fin being provided on an exterior of the second surface.Type: ApplicationFiled: October 21, 2022Publication date: April 6, 2023Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Kenya Kawabata, Masahiro Meguro, Ryo Tsubata, Hirofumi Aoki, Yoshikatsu Inagaki, Hiroshi Sakai, Hideaki Kawabata
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Publication number: 20230069333Abstract: A vapor chamber has: a container in which a cavity portion is formed in an inside; a wick structure provided in the cavity portion; a working fluid enclosed in the cavity portion; a vapor flow path which is formed in the cavity portion and through which the working fluid in a gas phase flows; and a hydrogen occlusion metal that is disposed in the cavity portion and absorbs hydrogen at 350° C. or lower and does not release hydrogen at 350° C. or lower, the hydrogen occlusion metal being coated in a region in contact with the working fluid in an inner surface of the cavity portion and/or the wick structure.Type: ApplicationFiled: November 8, 2022Publication date: March 2, 2023Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Yoshikatsu INAGAKI, Hirofumi AOKI
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Publication number: 20220341681Abstract: Provided is a heat pipe which is installed in a cold region in a bottom heat posture in which a longitudinal direction of a container is substantially in parallel with a gravitational direction, is capable of preventing the container from deforming even when a working fluid has become frozen, and has excellent heat transport properties.Type: ApplicationFiled: July 8, 2022Publication date: October 27, 2022Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Yoshikatsu INAGAKI, Hirofumi AOKI, Kazuya TAKAHASHI, Shinichi ITO, Shuta HIKICHI
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Patent number: 11415373Abstract: Provided is a heat pipe which is installed in a cold region in a bottom heat posture in which a longitudinal direction of a container is substantially in parallel with a gravitational direction, is capable of preventing the container from deforming even when a working fluid has become frozen, and has excellent heat transport properties.Type: GrantFiled: October 11, 2019Date of Patent: August 16, 2022Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Yoshikatsu Inagaki, Hirofumi Aoki, Kazuya Takahashi, Shinichi Ito, Shuta Hikichi
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Patent number: 11337336Abstract: A cooling device including a container to which at least one heating element is thermally connected, a primary refrigerant, and a condensation tube through which a secondary refrigerant flows, wherein a container inner surface area increasing portion is formed on an inner surface of the container to which the heating element is thermally connected, and a plate-shaped member is provided, that includes a shielding portion that is located above the container inner surface area increasing portion in a direction of gravity and below the condensation tube in the direction of gravity, with at least a part of the shielding portion not immersed in the primary refrigerant in a liquid phase, and the plate-shaped member includes a support portion extending from the shielding portion, in a part of a periphery along an orthogonal direction to the direction of gravity, of the container inner surface area increasing portion.Type: GrantFiled: June 24, 2021Date of Patent: May 17, 2022Assignee: Furukawa Electric Co., Ltd.Inventors: Hirofumi Aoki, Yoshikatsu Inagaki, Kenya Kawabata, Yoshinori Nakamura
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Publication number: 20220132697Abstract: A vapor chamber is provided that allows space-saving and weight reduction of a device in which the vapor chamber is to be mounted. The vapor chamber has a container in which a cavity portion is formed by one plate-shaped body and another plate-shaped body facing the one plate-shaped body, and a working fluid enclosed in the cavity portion. The container includes a heat transfer portion that transfers heat by a phase change of the working fluid, and an extending portion that extends outwards from the heat transfer portion and has a function other than a heat transfer function.Type: ApplicationFiled: January 7, 2022Publication date: April 28, 2022Applicant: Furukawa Electric Co., Ltd.Inventors: Yoshikatsu INAGAKI, Kenya KAWABATA, Hirofumi AOKI
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Publication number: 20220128314Abstract: The disclosure provides a vapor chamber that has excellent fixing stability of a wick structure inside a container and also has excellent circulation properties for a liquid-phase working fluid due to excellent capillary force of the wick structure. The vapor chamber includes a container in which a cavity portion is formed by one plate-shaped body and another plate-shaped body facing the one plate-shaped body, a working fluid enclosed in the cavity portion, and a wick structure contained in the cavity portion and welded to the container so that a welded portion is formed in the wick structure.Type: ApplicationFiled: January 7, 2022Publication date: April 28, 2022Applicant: Furukawa Electric Co., Ltd.Inventors: Yoshikatsu INAGAKI, Kenya KAWABATA, Hirofumi AOKI
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Patent number: 11313627Abstract: The present disclosure provides a heat pipe capable of preventing deformation of even a thin container and having excellent heat transfer characteristics by preventing freezing of a working fluid even if the longitudinal direction of the container is set substantially parallel to the direction of gravity in cold regions. A heat pipe includes a container having a tubular shape with both ends sealed, a wick structure stored in the container, and a working fluid sealed in the container, wherein, in at least one of cross sections perpendicular to the longitudinal direction of the container, the wick structure is in contact with the inner surface of the container at two points but both side surfaces of the wick structure are not in contact with any inner surface of the container, and a sintered metal layer is formed on the container inner surface being not in contact with the wick structure.Type: GrantFiled: December 20, 2019Date of Patent: April 26, 2022Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Yoshikatsu Inagaki, Shinichi Ito, Kazuya Takahashi, Shuta Hikichi
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Publication number: 20220046824Abstract: A cooling device that can reduce heat resistance by improving a heat exchange action of a condensation tube, and can exhibit excellent cooling characteristics, and a cooling system using the cooling device are provided. The cooling device includes a container to which at least one heating element is thermally connected, a primary refrigerant sealed inside the container, a condensation tube through which a secondary refrigerant flows and which penetrates through a gaseous phase portion inside the container, and a porous member provided at an outer surface of the condensation tube.Type: ApplicationFiled: October 22, 2021Publication date: February 10, 2022Applicant: Furukawa Electric Co., Ltd.Inventors: Hirofumi AOKI, Yoshikatsu INAGAKI, Yoshinori NAKAMURA, Hideaki KAWABATA
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Publication number: 20220046825Abstract: The vapor chamber includes a container having a cavity formed of one plate-shaped body to which a heating element is thermally connected and another plate-shaped body facing the one plate-shaped body, a working fluid enclosed in the cavity, and a wick structure that is enclosed in the cavity and separated from the container. The container includes a support part protruding from an inner surface of the other plate-shaped body toward the one plate-shaped body, the support part being formed of a recessed part provided to an outer surface of the other plate-shaped body. At the rising base portion of the support part from the inner surface of the other plate-shaped body, the defined angle between the support part and the inner surface of the other plate-shaped body is an obtuse angle.Type: ApplicationFiled: October 22, 2021Publication date: February 10, 2022Applicant: Furukawa Electric Co., Ltd.Inventors: Yoshikatsu INAGAKI, Kenya KAWABATA, Hirofumi AOKI
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Patent number: 11246239Abstract: The present disclosure provides a heatsink that can improve heat radiation efficiency of a heat radiating fin and equalize a heat input in a heat receiving portion while securing sufficient volumes of the heat receiving portion, a heat insulating portion, and a heat radiating portion even in an environment in which an installation space for the heatsink, more specifically, an installation space in a width direction of the heatsink is limited.Type: GrantFiled: September 21, 2020Date of Patent: February 8, 2022Assignee: FURUKAWA ELECTRIC CO., LTD.Inventors: Yosuke Watanabe, Kenya Kawabata, Yoshikatsu Inagaki, Tatsuro Miura, Kazuaki Aotani, Toshiaki Nakamura
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Publication number: 20210318072Abstract: A cooling device includes a heat-radiating fin group having a plurality of heat-radiating fins that are arranged parallel to each other in a first direction; first heat pipes, one end of each first heat pipe being configured to be thermally connected to a first heat-generating element, another end of each first heat pipe being thermally connected to the heat-radiating fin group; and second heat pipes, one end of each second heat pipe being configured to be thermally connected to a second heat-generating element, another end of each second heat pipe being thermally connected to the heat-radiating fin group, wherein respective inserted another ends of the first and second heat pipes are disposed on a plane parallel to the first direction and defined in the heat-radiating fin group and have portions parallel to the first direction.Type: ApplicationFiled: June 23, 2021Publication date: October 14, 2021Applicant: FURUKAWA ELECTRIC CO., LTD.Inventors: Shinichi ITO, Masahiro MEGURO, Kenya KAWABATA, Yoshikatsu INAGAKI
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Patent number: D953280Type: GrantFiled: January 17, 2020Date of Patent: May 31, 2022Assignee: FURUKAWA ELECTRIC CO., LTDInventors: Shuta Hikichi, Yoshikatsu Inagaki, Yosuke Watanabe
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Patent number: D954005Type: GrantFiled: March 11, 2020Date of Patent: June 7, 2022Assignee: Furukawa Electric Co., Ltd.Inventors: Yoshikatsu Inagaki, Shuta Hikichi
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Patent number: D971862Type: GrantFiled: June 28, 2019Date of Patent: December 6, 2022Assignee: Furukawa Electric Co., Ltd.Inventors: Yoshikatsu Inagaki, Shuta Hikichi, Hiroshi Sakai