公开(公告)号：US20210302296A1

公开(公告)日：2021-09-30

申请号：US17184936

申请日：2021-02-25

Applicant: NGK INSULATORS, LTD.

Inventor： Yoshihiro SATO ,  Takakazu KOYAMA ,  Yuji WATANABE ,  Yutaka ISHII ,  Takaaki KANEMITSU ,  Makoto MURAI ,  Masanari IWADE ,  Takafumi TERAHAI ,  Ryota KURAHASHI ,  Akinari FUKAYA ,  Kenji EBISUTANI

IPC: G01N15/06 ,  G01N15/08 ,  G01N21/95

Abstract: An inspection method for a pillar-shaped honeycomb filter having a honeycomb-shaped first end face and a honeycomb-shaped second end face, including: allowing gas containing fine particles to flow into the first end face; imaging the entire second end face covered with the sheet-like light using a camera while the gas that has flowed into the first end face flows out of the second end face through the filter, and generating an image of the entire second end face covered with the sheet-like light; selecting an inspection area of the second end face and measuring information concerning a sum of luminance of each pixel in the inspection area; and determining quality of the filter based on at least the information concerning the concentration of the fine particles in the gas before the gas flows into the first end face and the information concerning the sum of luminance.

公开(公告)号：US20240020820A1

公开(公告)日：2024-01-18

申请号：US18477793

申请日：2023-09-29

Applicant: NGK INSULATORS, LTD.

Inventor： Takafumi TERAHAI ,  Ryota KURAHASHI ,  Yoshihiro SATO

IPC: G06T7/00 ,  G01B21/02 ,  B25J15/00 ,  G06T7/66 ,  H04N23/72

CPC classification number: G06T7/0008 ,  G01B21/02 ,  B25J15/0004 ,  G06T7/0006 ,  G06T7/66 ,  G06T7/0004 ,  H04N23/72 ,  G06T2207/30164 ,  G06T2207/30148 ,  G05B2219/39478

Abstract: An inspection system for carrying out an inspection method for a pillar-shaped honeycomb structure, the inspection system including: a robot arm with a robot hand at a tip of the robot arm, the robot hand comprising a pair of gripping surfaces capable of gripping the pillar-shaped honeycomb structure from the first end surface and the second end surface, the pair of gripping surfaces being configured to be able to rotate the pillar-shaped honeycomb structure at a predetermined rotational speed while gripping the pillar-shaped honeycomb structure from the first end surface and the second end surface; the area camera for the side surface; a screen that can display the strip-shaped images; and a controller that can at least set a rotation speed of the pair of gripping surfaces and the shutter speed of the area camera for the side surface.

公开(公告)号：US20210302326A1

公开(公告)日：2021-09-30

申请号：US17203901

申请日：2021-03-17

Applicant: NGK INSULATORS, LTD.

Inventor： Ryota KURAHASHI ,  Yoshihiro SATO ,  Takafumi TERAHAI

IPC: G01N21/88 ,  G01N21/55 ,  G01N21/59 ,  G06T7/00 ,  G06T7/70 ,  G06T7/521

Abstract: A method for inspecting a pillar-shaped honeycomb structure includes steps of: capturing a pattern of reflected light from an end face with a camera and generating an image data of the pattern of the reflected light; distinguishing positional information of each of cells adjacent to an outer peripheral side wall and cells that are not adjacent to the outer peripheral side wall based on the image data of the pattern of the reflected light, and storing the distinguished positional information in a memory; capturing a pattern of transmitted light from the end face with the camera and generating an image data of the pattern of the transmitted light; measuring intensity of each transmitted light from the cells adjacent to the outer peripheral side wall to detect the cells having defective plugged portions that are adjacent to the outer peripheral side wall based on the generated image data of the pattern of the transmitted light and the positional information; and measuring intensity of each transmitted light from the cells that are not adjacent to the outer peripheral side wall to detect the cells having defective plugged portions that are not adjacent to the outer peripheral side wall based on the generated image data of the pattern of the transmitted light and the positional information.

公开(公告)号：US20210302298A1

公开(公告)日：2021-09-30

申请号：US17128392

申请日：2020-12-21

Applicant: NGK INSULATORS, LTD.

Inventor： Ryota KURAHASHI ,  Yoshihiro SATO ,  Takafumi TERAHAI

IPC: G01N15/08

Abstract: A method for inspecting a pillar-shaped honeycomb structure including the steps of: imaging a pattern of transmitted light from the second end face according to arrangement of the plugged portions of first cells and second cells, with a camera via a light diffusing film placed parallel to a second end face of the pillar-shaped honeycomb structure in a non-contact state with the second end face, which pattern is obtained by irradiating a first end face with light; and detecting a defective plugged portion(s) of the second cells based on an image of the pattern of transmitted light imaged with the camera.

公开(公告)号：US20150194692A1

公开(公告)日：2015-07-09

申请号：US14661402

申请日：2015-03-18

Applicant: NGK INSULATORS, LTD.

Inventor： Yohei MIURA ,  Makoto OHMORI ,  Ayano KOBAYASHI ,  Takafumi TERAHAI

IPC: H01M8/12

CPC classification number: H01M8/1213 ,  H01M4/8605 ,  H01M4/8621 ,  H01M4/8663 ,  H01M4/9066 ,  H01M8/1004 ,  H01M8/1253 ,  H01M2008/1293 ,  H01M2300/0077 ,  Y02E60/521 ,  Y02E60/525 ,  Y02P70/56

Abstract: A fuel cell includes an anode, a solid electrolyte layer, a barrier layer, and a cathode. The anode includes a transition metal and an oxygen ion conductive material. In the interface region within 3 micrometers from the interface with the solid electrolyte layer of the anode after reduction, the content rate of silicon is less than or equal to 200 ppm, the content rate of phosphorous is less than or equal to 50 ppm, the content rate of chrome is less than or equal to 100 ppm, the content rate of boron is less than or equal to 100 ppm, and the content rate of sulfur is less than or equal to 100 ppm.

Abstract translation: 燃料电池包括阳极，固体电解质层，阻挡层和阴极。 阳极包括过渡金属和氧离子导电材料。 在与还原后的阳极固体电解质层的界面3微米以内的界面区域，硅含量小于或等于200ppm，磷含量小于或等于50ppm， 含铬率小于或等于100ppm，硼含量小于或等于100ppm，硫含量小于或等于100ppm。

公开(公告)号：US20230326008A1

公开(公告)日：2023-10-12

申请号：US18188520

申请日：2023-03-23

Applicant: NGK INSULATORS, LTD.

Inventor： Takafumi TERAHAI ,  Yoshihiro SATO ,  Kai YAMASHITA

IPC: G06T7/00 ,  G06T7/60

CPC classification number: G06T7/0004 ,  G06T7/60 ,  G06T2207/20081

Abstract: Excessive detections of a defect(s) of a specified defect type is reduced. A test apparatus: inputs each of a plurality of fragment images, which are extracted from a test image of a work, into a learning model which receives an image(s) as input and outputs a type(s), and thereby judges the type with respect to each of the plurality of fragment images. The test apparatus judges whether or not a defect of a specified defect type is captured in the test image, on the basis of whether the judged type with respect to each of the plurality of fragment images is the specified defect type or not.

公开(公告)号：US20210304399A1

公开(公告)日：2021-09-30

申请号：US17177351

申请日：2021-02-17

Applicant: NGK INSULATORS, LTD.

Inventor： Takafumi TERAHAI ,  Ryota KURAHASHI ,  Yoshihiro SATO

IPC: G06T7/00 ,  G01B21/02 ,  B25J15/00 ,  H04N5/235 ,  G06T7/66

Abstract: An inspection method for a pillar-shaped honeycomb structure including a step A of generating strip-shaped images by repeatedly capturing the side surface part by part with an area camera while relatively moving the area camera with respect to the pillar-shaped honeycomb structure; and a step B of determining presence or absence of defects on the side surface based on the strip-shaped images obtained in the step A; wherein a number of the strip-shaped images generated in the step A is sufficient to cover the entire side surface; a shutter speed when the area camera captures a part of the side surface for generating a single strip-shaped image is 10 to 1000 μsec; and each of the strip-shaped images has a length covering the entire height of the pillar-shaped honeycomb structure in a longitudinal direction, and a length of 1 to 10 mm in a width direction.

公开(公告)号：US20210302325A1

公开(公告)日：2021-09-30

申请号：US17188123

申请日：2021-03-01

Applicant: NGK INSULATORS, LTD.

Inventor： Takafumi TERAHAI ,  Yoshihiro SATO

IPC: G01N21/88 ,  G01N21/89 ,  G01N21/952 ,  H04N7/18 ,  G06T7/00

Abstract: A inspection method for a cylindrical honeycomb structure including a step of placing a cylindrical honeycomb structure made of ceramics on a rotation stage; a step of irradiating the side surface of the cylindrical honeycomb structure with light having a wavelength of 300 to 500 nm; a step of repeatedly capturing a reflected light from the side surface with a line sensor camera having a pixel resolution of 1 to 25 μm/pix while the light is irradiated to the side surface and the cylindrical honeycomb structure is rotated around the axis of rotation, with a depth of field of the line sensor camera being adjusted to 0.5 to 5 mm; a step of generating an inspection image of the entire side surface; and a step of determining presence or absence of defects on the side surface based on the inspection image.

公开(公告)号：US20210018446A1

公开(公告)日：2021-01-21

申请号：US17061750

申请日：2020-10-02

Applicant: NGK Insulators, Ltd.

Inventor： Takafumi TERAHAI ,  Akihiro MIZUTANI

IPC: G01N21/88 ,  G01N21/95

Abstract: A plurality of illumination elements obliquely irradiating an inspection target region in irradiation directions different from each other and equiangularly spaced around an image capturing part in a state where each of a low-angle, intermediate-angle, and high-angle illumination parts has a different irradiation angle are sequentially turned on and off. An image of the image captured region is captured every time each of the plurality of illumination elements is turned on. A determination image generation part specifies an inspection-excluded region based on at least one of maximum luminance image data and minimum luminance image data of three types of captured image data each corresponding to an irradiation angle of each illumination part and generates determination image data for the image captured region other than the inspection-excluded region. A defect determination part determines existence of a defect based on the determination image data.

公开(公告)号：US20130236811A1

公开(公告)日：2013-09-12

申请号：US13870442

申请日：2013-04-25

Applicant: NGK INSULATORS, LTD.

Inventor： Yohei MIURA ,  Makoto OHMORI ,  Ayano KOBAYASHI ,  Takafumi TERAHAI

IPC: H01M8/10

CPC classification number: H01M8/1213 ,  H01M4/8605 ,  H01M4/8621 ,  H01M4/8663 ,  H01M4/9066 ,  H01M8/1004 ,  H01M8/1253 ,  H01M2008/1293 ,  H01M2300/0077 ,  Y02E60/521 ,  Y02E60/525 ,  Y02P70/56

Abstract: A fuel cell (10) includes an anode (11), a solid electrolyte layer (12), a barrier layer (13), and a cathode (14). The anode (11) includes a transition metal and an oxygen ion conductive material. In the interface region (R) within 3 micrometers from the interface with the solid electrolyte layer (12) of the anode (11) after reduction, the content rate of silicon is less than or equal to 200 ppm, the content rate of phosphorous is less than or equal to 50 ppm, the content rate of chrome is less than or equal to 100 ppm, the content rate of boron is less than or equal to 100 ppm, and the content rate of sulfur is less than or equal to 100 ppm.

Abstract translation: 燃料电池（10）包括阳极（11），固体电解质层（12），阻挡层（13）和阴极（14）。 阳极（11）包括过渡金属和氧离子导电材料。 在与还原后的阳极（11）的固体电解质层（12）的界面3微米以内的界面区域（R）中，硅的含有率小于等于200ppm，磷的含有率为 小于或等于50ppm，铬的含量比例小于或等于100ppm，硼含量小于或等于100ppm，硫含量小于或等于100ppm 。