公开(公告)号：US20170106606A1

公开(公告)日：2017-04-20

申请号：US15306144

申请日：2015-04-23

Applicant: Teijin Limited

Inventor： Takashi Toyozumi ,  Syuhei Suzuki

IPC: B29C70/14 ,  B29C70/42 ,  C08J5/24 ,  B23C5/10

Abstract: The present invention is aimed to provide a carbon fiber reinforced resin processed product which is almost free from the problems described above on a processed surface subjected to cutting or the like and has an end surface where generation of a burr is suppressed, has favorable surface properties, and surface nature, and particularly smoothness is excellent; and provides a carbon fiber reinforced resin processed product having an end surface which has fibers and a resin, wherein the end surface has a surface roughness (Rz) within a range from 5 μm to 50 μm.

公开(公告)号：US11835487B2

公开(公告)日：2023-12-05

申请号：US16979330

申请日：2019-03-06

Applicant: Teijin Limited

Inventor： Takashi Toyozumi ,  Hodaka Yokomizo ,  Makoto Ootsubo ,  Shuhei Suzuki ,  Akihiko Obata

IPC: G01N29/32 ,  G01N29/04 ,  B29C55/06 ,  G01B11/30 ,  G01B21/30 ,  G01B17/02 ,  G01N29/28

CPC classification number: G01N29/32 ,  B29C55/06 ,  G01B11/306 ,  G01B17/025 ,  G01B21/30 ,  G01N29/04 ,  G01N29/28

Abstract: The present invention provides a method for inspecting a material to be inspected using ultrasound waves, the method including the following step 201 to step 301, in which step 201 is performed in a condition where: the surface temperature of a material under inspection—atmospheric temperature>2° C., and inspection using ultrasound waves in step 301 satisfies: a refractive attenuation rate≤1.5%. Step 201: blowing a fluid from a blowing port onto the material to be inspected. Step 301: inspecting the material to be inspected using the ultrasound waves after step 201 or at the same time as the step 201.

公开(公告)号：US20200369843A1

公开(公告)日：2020-11-26

申请号：US16767297

申请日：2018-11-21

Applicant: Teijin Limited

Inventor： Makoto Ootsubo ,  Takeru Ohki ,  Guofei Hua ,  Akihisa Nomura ,  Shuhei Suzuki ,  Shuhei Onoue ,  Takumi Kato ,  Takashi Toyozumi

IPC: C08J5/24 ,  B29C70/46 ,  B29B15/10 ,  C08J5/04

Abstract: A composite material which includes a thermoplastic matrix resin and carbon fibers A including carbon fiber bundles A1 in which Li/(Ni×Di2) satisfies 6.7×101 to 3.3×103, wherein the carbon fibers A have a fiber length of 5-100 mm and have a value of LwA1/(NA1ave×DA12) of 1.0×102 to 3.3×103, the carbon fiber bundles A1 having an average bundle width WA1 less than 3.5 mm and being contained in an amount of 90 vol % or larger with respect to the carbon fibers A A production method for producing a molded object from the composite material-is also provided.

公开(公告)号：US11795279B2

公开(公告)日：2023-10-24

申请号：US16767297

申请日：2018-11-21

Applicant: Teijin Limited

Inventor： Makoto Ootsubo ,  Takeru Ohki ,  Guofei Hua ,  Akihisa Nomura ,  Shuhei Suzuki ,  Shuhei Onoue ,  Takumi Kato ,  Takashi Toyozumi

IPC: C08J5/04 ,  B29C70/46 ,  B29B15/10 ,  B29C70/16 ,  B29C70/50 ,  C08J5/24 ,  B29K101/12 ,  B29K307/04 ,  B29K77/00 ,  B29K105/12

CPC classification number: C08J5/042 ,  B29B15/10 ,  B29C70/16 ,  B29C70/46 ,  B29C70/50 ,  C08J5/243 ,  B29K2077/00 ,  B29K2101/12 ,  B29K2105/12 ,  B29K2307/04 ,  C08J2377/02

Abstract: A composite material which includes a thermoplastic matrix resin and carbon fibers A including carbon fiber bundles A1 in which Li/(Ni×Di2) satisfies 6.7×101 to 3.3×103, wherein the carbon fibers A have a fiber length of 5-100 mm and have a value of LwA1/(NA1ave×DA12) of 1.0×102 to 3.3×103, the carbon fiber bundles A1 having an average bundle width WA1 less than 3.5 mm and being contained in an amount of 90 vol % or larger with respect to the carbon fibers A A production method for producing a molded object from the composite material is also provided.

公开(公告)号：US20210262948A1

公开(公告)日：2021-08-26

申请号：US17253776

申请日：2019-06-18

Applicant: Teijin Limited

Inventor： Takashi Toyozumi

IPC: G01N23/046 ,  B29C70/12 ,  G01N21/84 ,  G01N23/04 ,  G01N23/083

Abstract: [Problem] To make it possible to perform quantitative examination of slight weight unevenness of a material, and to provide a method for manufacturing a carbon fiber composite material in which weight unevenness is suppressed through the examination step. [Solution] The above problem can be solved by a method for manufacturing a deposit containing a thermoplastic resin and carbon fibers and having a side of 300 mm or more, wherein the composite is manufactured through the following steps. Step 101: an examination step of examining the weight of an aggregate of carbon fibers or the deposit non-destructively. Step 201: a step of ascertaining weight unevenness on the basis of the result of examination in step S101. Step 301: a step of adding an aggregate of discontinuous carbon fibers and/or a thermoplastic resin to a weight-lacking area on the basis of the weight unevenness of step 201 so as to reduce the weight unevenness.

公开(公告)号：US09556891B2

公开(公告)日：2017-01-31

申请号：US14888358

申请日：2015-02-27

Applicant: Teijin Limited

Inventor： Takashi Toyozumi ,  Masumi Hirata ,  Hiroki Sano ,  Takeru Ohki ,  Jianwei Shi

IPC: F16B19/06 ,  B29C65/08 ,  B29C70/06 ,  F16B5/04 ,  B29C65/60 ,  B29C65/00 ,  B29C65/02

CPC classification number: F16B19/06 ,  B21J15/147 ,  B29C65/02 ,  B29C65/08 ,  B29C65/601 ,  B29C65/7855 ,  B29C66/1122 ,  B29C66/21 ,  B29C66/41 ,  B29C66/71 ,  B29C66/7212 ,  B29C66/73921 ,  B29C66/81423 ,  B29C66/81429 ,  B29C66/81431 ,  B29C66/8322 ,  B29C66/83221 ,  B29C70/06 ,  F16B5/04 ,  B29K2023/00 ,  B29K2023/06 ,  B29K2023/12 ,  B29K2023/18 ,  B29K2025/06 ,  B29K2025/08 ,  B29K2027/06 ,  B29K2027/08 ,  B29K2027/12 ,  B29K2027/18 ,  B29K2029/04 ,  B29K2031/04 ,  B29K2033/08 ,  B29K2033/12 ,  B29K2055/02 ,  B29K2059/00 ,  B29K2061/00 ,  B29K2061/04 ,  B29K2063/00 ,  B29K2067/00 ,  B29K2067/003 ,  B29K2067/006 ,  B29K2067/06 ,  B29K2069/00 ,  B29K2071/00 ,  B29K2071/12 ,  B29K2075/00 ,  B29K2077/00 ,  B29K2079/00 ,  B29K2079/08 ,  B29K2079/085 ,  B29K2081/04 ,  B29K2081/06 ,  B29K2307/04

Abstract: There is provided a joined body in which two or more members Yi including a fitting hole are fastened, in which a fastening rod including reinforcing fibers and a thermoplastic resin is positioned in the fitting hole, the fastening rod is caulked by heat, and the members Yi are caulking-fastened.

Abstract translation: 提供了一种接合体，其中紧固包括装配孔的两个或更多个构件Yi，其中包括增强纤维和热塑性树脂的紧固杆定位在装配孔中，紧固杆被热填塞，并且构件 Yi king紧固。

公开(公告)号：US11440270B2

公开(公告)日：2022-09-13

申请号：US15306144

申请日：2015-04-23

Applicant: Teijin Limited

Inventor： Takashi Toyozumi ,  Syuhei Suzuki

IPC: B29C70/14 ,  B23C5/10 ,  B23C3/00 ,  B29C70/06 ,  C08J5/04 ,  B29C70/42 ,  C08J5/24 ,  B29K101/12 ,  B29K105/12 ,  B29K307/04

Abstract: The present invention is aimed to provide a carbon fiber reinforced resin processed product which is almost free from the problems described above on a processed surface subjected to cutting or the like and has an end surface where generation of a burr is suppressed, has favorable surface properties, and surface nature, and particularly smoothness is excellent; and provides a carbon fiber reinforced resin processed product having an end surface which has fibers and a resin, wherein the end surface has a surface roughness (Rz) within a range from 5 μm to 50 μm.

公开(公告)号：US20210108040A1

公开(公告)日：2021-04-15

申请号：US16767260

申请日：2018-11-21

Applicant: Teijin Limited

Inventor： Shuhei Onoue ,  Takumi Kato ,  Takashi Toyozumi ,  Makoto Ootsubo ,  Takeru Ohki ,  Guofei Hua ,  Akihisa Nomura

IPC: C08J5/24 ,  B29C70/50 ,  B29C70/16

Abstract: A composite material includes a thermoplastic matrix resin and carbon fibers A including carbon fiber bundles A1 in which Li/(Ni×Di2) is 6.7×101 to 3.3×103, and a thermoplastic matrix resin. The carbon fibers A have a fiber length of 5-100 mm and the carbon fiber bundles A1 are contained in an amount of 80 vol % or larger but less than 100 vol % with respect to the carbon fibers A and wherein removal of the matrix resin from the composite material gives a carbon fiber mass which, when compressed to a thickness of Tf, has a repulsive force P of 0.05-1.00 MPa A method for producing the composite material including subjecting a composite composition to an impregnation treatment with a compression/impregnation device.

公开(公告)号：US20210003538A1

公开(公告)日：2021-01-07

申请号：US16979330

申请日：2019-03-06

Applicant: Teijin Limited

Inventor： Takashi Toyozumi ,  Hodaka Yokomizo ,  Makoto Ootsubo ,  Shuhei Suzuki ,  Akihiko Obata

IPC: G01N29/32 ,  G01N29/04 ,  G01N29/28

Abstract: The present invention provides a method for inspecting a material to be inspected using ultrasound waves, the method including the following step 201 to step 301, in which step 201 is performed in a condition where: the surface temperature of a material under inspection—atmospheric temperature >2° C., and inspection using ultrasound waves in step 301 satisfies: a refractive attenuation rate ≤1.5%. Step 201: blowing a fluid from a blowing port onto the material to be inspected. Step 301: inspecting the material to be inspected using the ultrasound waves after step 201 or at the same time as the step 201.