公开(公告)号：US12264228B2

公开(公告)日：2025-04-01

申请号：US17876168

申请日：2022-07-28

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Youji Shirato ,  Norihiro Kawamura ,  Yoshifumi Iimuro

IPC: C08K3/00 ,  C08K3/04 ,  H01L23/373

Abstract: A graphite composite includes a graphite sheet having a void inside and a resin member. The void is partially filled by at least a part of the resin member in its entirety. The proportion of the resin member to the sum of the graphite sheet and the resin member is equal to or greater than 5% by mass. The graphite composite has a porosity equal to or greater than 50% by volume and equal to or less than 95% by volume.

公开(公告)号：US11085712B2

公开(公告)日：2021-08-10

申请号：US16481502

申请日：2018-01-19

Applicant: SEKISUI POLYMATECH CO., LTD. ,  Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shigeru Koyano ,  Yoshifumi Iimuro ,  Yoshiya Sakaguchi

IPC: F28F21/02 ,  F28F21/06 ,  H01L23/29 ,  H05K7/20

Abstract: 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.