公开(公告)号：US10953629B2

公开(公告)日：2021-03-23

申请号：US16156099

申请日：2018-10-10

Applicant: KANEKA CORPORATION

Inventor： Satoshi Katayama ,  Yusuke Ohta ,  Naoshi Marutani ,  Yasushi Nishikawa

IPC: B32B9/00 ,  C01B32/205 ,  C01B32/21 ,  B32B1/08 ,  C01B32/20 ,  B65H18/28

Abstract: A rolled graphite sheet includes a rod-shaped body and a graphite sheet having a length of 1 m or more and a width shorter than the length. The graphite sheet is wound around the rod-shaped body and is rolled in a length direction. When a length direction-end of the graphite sheet is pulled with a force of 1.5 N/cm in a direction parallel to a tangent of a cross-sectional circle of the rolled graphite sheet while fixing the rod-shaped body, the end moves 5 mm or less in the direction parallel to the tangent of the circle.

公开(公告)号：US20180072920A1

公开(公告)日：2018-03-15

申请号：US15564965

申请日：2016-04-08

Applicant: Kaneka Corporation

Inventor： Noriya Kaneda ,  Hideaki Yano ,  Yusuke Ohta ,  Masaaki Nakamura ,  Yasushi Nishikawa

IPC: C09J7/02 ,  B32B7/14 ,  B32B9/00 ,  B32B3/30 ,  B32B37/12 ,  C01B32/20 ,  C09K5/14 ,  C09J5/00 ,  H05K7/20

CPC classification number: H05K7/2039 ,  B32B3/30 ,  B32B7/14 ,  B32B9/00 ,  B32B9/007 ,  B32B37/12 ,  B32B37/1292 ,  B32B38/145 ,  B32B2309/105 ,  B32B2313/04 ,  B32B2457/00 ,  C01B32/20 ,  C01B32/205 ,  C01P2006/32 ,  C09J5/00 ,  C09J7/20 ,  C09J7/29 ,  C09J7/30 ,  C09J2201/28 ,  C09J2201/622 ,  C09J2203/326 ,  C09J2400/10 ,  C09J2433/00 ,  C09K5/14 ,  H01L23/373

Abstract: Provided are: a graphite composite film that reduces bubble entrapment between itself and an adherend when bonded to the adherend without impairing its heat dissipation ability; and a method for producing the graphite composite film.Specifically, provided are: a graphite composite film including a stack of a graphite film and an adhesive layer that has a projection/recess structure at its surface which faces away from the graphite film; and a method for producing the graphite composite film.

公开(公告)号：US09776927B2

公开(公告)日：2017-10-03

申请号：US14995058

申请日：2016-01-13

Applicant: Kaneka Corporation

Inventor： Yusuke Ohta ,  Makoto Mishiro ,  Takashi Inada ,  Yasushi Nishikawa

IPC: B32B9/00 ,  C04B35/524 ,  C01B31/04

CPC classification number: C04B35/524 ,  C01B32/19 ,  C01B32/20 ,  C01B32/205 ,  C01B32/225 ,  Y10T428/30

Abstract: Provided is a long and large-area graphite film having improved thermal diffusivity and flex resistance, and accompanied by ameliorated ruffling. According to a method for producing a graphite film, in which graphitization of a heat-treated film consisting of a carbonized polymer film is carried out in a state being wrapped around an internal core, the method being characterized in that a heat treatment is executed by controlling distance(s) between the internal core and the film, and/or between the layers of the film, a graphite film accompanied by significantly ameliorated ruffling can be obtained.

公开(公告)号：US09359209B2

公开(公告)日：2016-06-07

申请号：US14361321

申请日：2012-10-23

Applicant: KANEKA CORPORATION

Inventor： Yusuke Ohta ,  Makoto Kutsumizu ,  Takashi Inada ,  Satoshi Katayama ,  Yasushi Nishikawa

IPC: C01B31/04 ,  H01L23/373

CPC classification number: C01B31/04 ,  C01B32/20 ,  H01L23/373 ,  H01L2924/0002 ,  Y10T428/24628 ,  H01L2924/00

Abstract: A re-forming process is carried out in which a material graphite film is heat-treated to not less than 2000° C. while the material graphite film is being pressured. Through the re-forming process, sag of a graphite film is controlled. By using, during the re-forming process, a plurality of inner cores having respective different surface states, it is possible to produce a graphite film having two or more sag forms which have respective effects.

Abstract translation: 在材料石墨膜被加压的同时进行将材料石墨膜热处理至不低于2000℃的再成形工艺。 通过重新形成工艺，控制石墨膜的下垂。 通过在再成形过程中使用具有各自不同表面状态的多个内芯，可以生产具有两种或更多种具有各自效果的凹陷形式的石墨膜。

公开(公告)号：US09682542B2

公开(公告)日：2017-06-20

申请号：US14971765

申请日：2015-12-16

Applicant: Kaneka Corporation

Inventor： Yusuke Ohta ,  Takashi Inada ,  Makoto Mishiro ,  Yasushi Nishikawa ,  Takashi Inada

IPC: C01B31/00 ,  B65H18/08 ,  B32B37/20 ,  B32B9/00 ,  B32B7/12 ,  B32B37/00 ,  B32B38/10 ,  B32B37/12 ,  B32B38/18

CPC classification number: B32B37/20 ,  B32B7/12 ,  B32B9/007 ,  B32B37/0053 ,  B32B37/12 ,  B32B38/10 ,  B32B38/18 ,  B32B2250/02 ,  B32B2313/04 ,  C01B32/20 ,  C04B35/522 ,  C04B35/524 ,  C04B35/62218 ,  C04B35/6269 ,  C04B35/63468 ,  C04B2235/604 ,  C04B2235/6581 ,  C04B2235/96 ,  C04B2235/9638

Abstract: A graphite film showing an extremely low average tearing force is more likely to suffer from various kinds of defects, such as splitting, winding deviation, wrinkling, and poor dimensional accuracy, in a step of producing the graphite film and in a step of processing the graphite film. However, these defects can be prevented by using a graphite film that satisfies the following requirements: 1) having an average tearing force of not more than 0.08 N as determined by Trouser tear method in accordance with JIS K7128; and 2) having sag of not less than 5 mm and not greater than 80 mm as determined by a method of film windability evaluation in accordance with JIS C2151.

公开(公告)号：US20150190982A1

公开(公告)日：2015-07-09

申请号：US14413734

申请日：2013-07-12

Applicant: KANEKA CORPORATION

Inventor： Makoto Kutsumizu ,  Yasushi Nishikawa ,  Yusuke Ohta ,  Satoshi Katayama ,  Takashi Inada ,  Motoaki Kobayashi

IPC: B32B7/04 ,  B32B9/04 ,  B32B3/26 ,  B32B9/00 ,  C01B31/04 ,  H05K1/02

CPC classification number: B32B7/04 ,  B32B3/266 ,  B32B9/007 ,  B32B9/045 ,  B32B9/047 ,  B32B15/20 ,  B32B17/04 ,  B32B2307/302 ,  B32B2313/04 ,  B32B2457/08 ,  C01B32/225 ,  H01L23/373 ,  H01L23/3735 ,  H01L2924/0002 ,  H05K1/0203 ,  H05K1/0207 ,  H05K3/022 ,  H05K3/44 ,  H05K2201/0323 ,  H05K2201/10106 ,  H05K2201/2072 ,  Y10T428/24347 ,  H01L2924/00

Abstract: Disclosed herein is a graphite composite material including a graphite film and a resin layer, wherein peeling-off of the resin layer from the graphite film is suppressed. The graphite composite material includes: a graphite film; and a resin layer formed on at least one surface of the graphite film, wherein the graphite film has through holes, wherein a number of the through is 100 to 1000 per cm2, and the through holes have a diameter of 0.10 mm or more but 1.00 mm or less, and wherein part of the resin layer is formed also in the through holes.

Abstract translation: 本文公开了一种石墨复合材料，其包括石墨膜和树脂层，其中树脂层与石墨膜的剥离被抑制。 石墨复合材料包括：石墨膜; 以及形成在所述石墨膜的至少一个表面上的树脂层，其中所述石墨膜具有通孔，其中所述通孔的数量为每平方厘米为100至1000，并且所述通孔的直径为0.10mm以上，但为1.00 mm以下，并且其中部分树脂层也形成在通孔中。

公开(公告)号：US20140308484A1

公开(公告)日：2014-10-16

申请号：US14361321

申请日：2012-10-23

Applicant: KANEKA CORPORATION

Inventor： Yusuke Ohta ,  Makoto Kutsumizu ,  Takashi Inada ,  Satoshi Katayama ,  Yasushi Nishikawa

IPC: C01B31/04

CPC classification number: C01B31/04 ,  C01B32/20 ,  H01L23/373 ,  H01L2924/0002 ,  Y10T428/24628 ,  H01L2924/00

Abstract: A re-forming process is carried out in which a material graphite film is heat-treated to not less than 2000° C. while the material graphite film is being pressured. Through the re-forming process, sag of a graphite film is controlled. By using, during the re-forming process, a plurality of inner cores having respective different surface states, it is possible to produce a graphite film having two or more sag forms which have respective effects.

Abstract translation: 在材料石墨膜被加压的同时进行将材料石墨膜热处理至不低于2000℃的再成形工艺。 通过重新形成工艺，控制石墨膜的下垂。 通过在再成形过程中使用具有各自不同表面状态的多个内芯，可以生产具有两种或更多种具有各自效果的凹陷形式的石墨膜。

公开(公告)号：US20130189180A1

公开(公告)日：2013-07-25

申请号：US13795767

申请日：2013-03-12

Applicant: Kaneka Corporation

Inventor： Yusuke Ohta ,  Wakahara Shuhei ,  Yasushi Nishikawa

IPC: C09K5/14 ,  C01B31/04

CPC classification number: C09K5/14 ,  B32B5/18 ,  B32B7/12 ,  B32B9/007 ,  B32B9/045 ,  B32B27/065 ,  B32B27/281 ,  B32B2307/302 ,  B32B2307/306 ,  B32B2307/54 ,  B32B2307/714 ,  B32B2457/00 ,  C01B32/20 ,  H01L23/373 ,  H01L23/3737 ,  H01L2924/0002 ,  H05K7/20481 ,  Y10T428/24446 ,  Y10T428/2918 ,  Y10T428/30 ,  H01L2924/00

Abstract: An object of the present invention is to provide a graphite film, and a graphite composite film both having an excellent thermal diffusivity which can sufficiently manage heat dissipation of electronic instruments, precision instruments and the like, along with an excellent flex resistance which can withstand application to bent portions.Means for Resolution of the present invention is a graphite film exhibiting the number of reciprocal foldings being 10,000 times or more as measured using a rectangular strip test piece having a width of 15 mm until the test piece breaks in a MIT folding endurance test under conditions of: a curvature radius R of the bending clamp being 2 mm; a left-and-right bending angle being 135°; a bending rate being 90 times/min; and a load being 0.98 N.

Abstract translation: 本发明的目的是提供一种具有优异的热扩散性的石墨膜和石墨复合膜，其能够充分地管理电子仪器，精密仪器等的散热，以及能够经受应用的优异的抗弯曲性 弯曲部分。 本发明的解决方法是使用宽度为15mm的矩形条状试验片测定的往复折叠数为10,000倍以上的石墨膜，直到试验片在MIT耐折性试验中断裂为止， 弯曲夹具的曲率半径R为2mm; 左右弯曲角度为135°; 弯曲率为90次/分钟; 负载为0.98N。

公开(公告)号：US11292721B2

公开(公告)日：2022-04-05

申请号：US16483935

申请日：2018-02-05

Applicant: KANEKA CORPORATION

Inventor： Keisuke Inaba ,  Yusuke Ohta ,  Satoshi Katayama ,  Makoto Kutsumizu ,  Yasushi Nishikawa

IPC: C01B32/205 ,  C01B32/20

Abstract: A graphite film has a higher degree of thermal diffusion property in one in-plane direction and a method produces the graphite film. The graphite film includes a first axial direction, which is a direction having the highest thermal diffusivity in a film surface, and a second axial direction orthogonal to the first axial direction in the film surface. A value obtained by dividing the thermal diffusivity in the first axial direction by a thermal diffusivity in the second axial direction is not less than 1.020 and not more than 1.300.

公开(公告)号：US09868639B2

公开(公告)日：2018-01-16

申请号：US14387069

申请日：2013-09-19

Applicant: KANEKA CORPORATION

Inventor： Satoshi Katayama ,  Yusuke Ohta ,  Takashi Inada ,  Makoto Kutsumizu ,  Yasushi Nishikawa

IPC: C01B31/02 ,  C01B31/04 ,  B32B18/00 ,  C04B35/52 ,  C04B35/524 ,  C04B35/622 ,  C01B32/05 ,  C01B32/20

CPC classification number: C01B32/20 ,  B32B18/00 ,  C01B32/05 ,  C04B35/522 ,  C04B35/524 ,  C04B35/62218 ,  C04B2235/6562 ,  C04B2235/9607 ,  C04B2237/363

Abstract: There has been a problem that wrinkles easily occur on a carbonaceous film produced by the use of a continuous production method and on a graphite film obtained by heat-treating the carbonaceous film. In the present invention, heating treatment is carried out on a polymeric film while applying pressure to the polymeric film in the film thickness direction with the use of a continuous carbonization apparatus. This makes it possible to obtain a carbonaceous film and a graphite film in which wrinkling is reduced.