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：US20200332077A1

公开(公告)日：2020-10-22

申请号：US16912831

申请日：2020-06-26

Applicant: Teijin Limited

Inventor： Naoaki Sonoda ,  Makoto Ootsubo ,  Takeru Ohki

IPC: C08J5/04 ,  D04H1/72 ,  D04H1/4342 ,  D04H1/4242 ,  D04H1/4218

Abstract: Provided is a reinforcing fiber mat including a reinforcing fiber mat constituted by reinforcing fibers having an average fiber length of 3 to 100 mm. The reinforcing fibers satisfy the following i) to iv): i) a weight-average fiber width (Ww) of the reinforcing fibers satisfies the following Equation (1): 0.03 mm

公开(公告)号：US10738168B2

公开(公告)日：2020-08-11

申请号：US14382051

申请日：2013-07-30

Applicant: Teijin Limited

Inventor： Naoaki Sonoda ,  Makoto Ootsubo ,  Takeru Ohki

IPC: C08J5/06 ,  C08J5/04 ,  C08J5/24 ,  D04H1/72 ,  D04H1/4342 ,  D04H1/4242 ,  D04H1/4218

Abstract: Provided is a fiber-reinforced composite material shaped product having isotropy and mechanical strength and a random mat used as an intermediate material thereof.The random mat includes reinforcing fibers having an average fiber length of 3 to 100 mm and a thermoplastic resin, in which the reinforcing fibers satisfy the following i) to iii). i) A weight-average fiber width (Ww) of the reinforcing fibers satisfies the following Equation (1). 0.03 mm

公开(公告)号：US10300621B2

公开(公告)日：2019-05-28

申请号：US14838968

申请日：2015-08-28

Applicant: Teijin Limited

Inventor： Makoto Ootsubo ,  Hiroya Hada ,  Toshiki Maeda ,  Takuo Kanzaki

IPC: B26D7/10

Abstract: According to an aspect of the present invention, there is provided a method for producing cut bodies including: cutting a fiber-reinforced resin material, the fiber-reinforced resin material including reinforcing fibers and a thermoplastic resin, the reinforcing fibers having a tensile strength of 1,000 MPa to 6,000 MPa; and heating the fiber-reinforced resin material, wherein a flexural modulus of the fiber-reinforced resin material at the cutting is decreased to a value ranging from 80% to 15% of the flexural modulus of the fiber-reinforced resin material before heating.

公开(公告)号：US20150158984A1

公开(公告)日：2015-06-11

申请号：US14382136

申请日：2013-07-30

Applicant: Teijin Limited

Inventor： Naoaki Sonoda ,  Makoto Ootsubo ,  Takeru Ohki

IPC: C08J5/06

CPC classification number: C08J5/06 ,  C08J5/042 ,  C08J2323/12 ,  C08J2433/20 ,  D01F9/12 ,  D04H1/4218 ,  D04H1/4242 ,  D04H1/4342 ,  D04H1/58 ,  D04H1/72 ,  Y10T428/24479

Abstract: There is provided a random mat including reinforcing fibers having an average fiber length of 3 to 100 mm and a thermoplastic resin, wherein the reinforcing fibers satisfy the following i) to iii). i) The reinforcing fibers have a weight-average fiber width (Ww) which satisfies the following equation (1). 0 mm

Abstract translation: 提供了包含平均纤维长度为3〜100mm的增强纤维和热塑性树脂的无规毡，其中，增强纤维满足以下i）〜iii）。 i）增强纤维的重均纤维宽度（Ww）满足下述式（1）。 0mm

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.

公开(公告)号：US10208174B2

公开(公告)日：2019-02-19

申请号：US15872006

申请日：2018-01-16

Applicant: Teijin Limited

Inventor： Naoaki Sonoda ,  Makoto Ootsubo ,  Takeru Ohki

IPC: C08J5/04 ,  C08J5/06 ,  D01F9/12 ,  D04H1/58 ,  D04H1/72 ,  D04H1/4218 ,  D04H1/4242 ,  D04H1/4342

Abstract: There is provided a random mat including reinforcing fibers having an average fiber length of 3 to 100 mm and a thermoplastic resin, wherein the reinforcing fibers satisfy the following i) to iii). i) The reinforcing fibers have a weight-average fiber width (Ww) which satisfies the following equation (1). 0 mm

公开(公告)号：US09528200B2

公开(公告)日：2016-12-27

申请号：US14367248

申请日：2012-12-21

Applicant: Teijin Limited

Inventor： Yukino Oosawa ,  Makoto Ootsubo ,  Takeru Ooki ,  Katsuyuki Hagihara

IPC: D02J1/18 ,  B29C70/10 ,  D04H3/002 ,  D04H1/4218 ,  D04H1/4242 ,  D04H1/4342 ,  D04H1/70 ,  D04H3/004 ,  D04H3/009 ,  D01F9/12

CPC classification number: D02J1/18 ,  B29C70/10 ,  D01F9/12 ,  D04H1/4218 ,  D04H1/4242 ,  D04H1/4342 ,  D04H1/70 ,  D04H3/002 ,  D04H3/004 ,  D04H3/009

Abstract: A method for manufacturing a reinforcing fiber strand is provided, in which a strand including reinforcing fibers passes through an uneven jig and a widening jig in this order, the uneven jig including a plurality of uneven portions having notched and protrusion portions, and the strand is divided by the protruding portions.

Abstract translation: 提供了一种制造增强纤维束的方法，其中包含增强纤维的绳索依次穿过不平坦的夹具和加宽夹具，不平坦的夹具包括多个具有切口和突出部分的不平坦部分， 除以突出部分。