公开(公告)号：US20160288366A1

公开(公告)日：2016-10-06

申请号：US15080853

申请日：2016-03-25

Applicant: NGK INSULATORS, LTD.

Inventor： Yuichi TAJIMA ,  Kensuke OKUMURA ,  Seiichiro HAYASHI

IPC: B28B17/02 ,  B28B3/20

CPC classification number: B28B17/026 ,  B28B3/20 ,  B28B17/0081 ,  B28C3/00 ,  B28C7/026 ,  B28C7/0418 ,  B28C9/002 ,  C04B35/62625 ,  C04B35/62635 ,  C04B38/0009 ,  C04B2235/6021 ,  G01B11/24

Abstract: A manufacturing method includes: a dry mixing step of dry mixing a raw material by batch processing; a wet mixing step of adding liquid to a dry mixture obtained at the dry mixing step by continuous processing, the liquid including at least one type of water, surfactant, lubricant and plasticizer, while wet mixing; a kneading step of kneading a wet mixture obtained at the wet mixing step; and a forming step of extruding a kneaded mixture (forming raw material) obtained at the kneading step to make a ceramic formed body.

Abstract translation: 一种制造方法，包括：干式混合工序，通过间歇式干燥混合原料; 在干混合步骤中通过连续加工将干燥混合物中加入液体的湿混合步骤，在湿混合的同时，包含至少一种类型的水，表面活性剂，润滑剂和增塑剂的液体; 捏合在湿混合步骤中获得的湿混合物的捏合步骤; 以及挤出在捏合步骤中获得的捏合混合物（成型原料）以形成陶瓷成形体的成形步骤。

公开(公告)号：US20220404261A1

公开(公告)日：2022-12-22

申请号：US17650400

申请日：2022-02-09

Applicant: NGK INSULATORS, LTD.

Inventor： Yohei KAJIURA ,  Yuji WATANABE ,  Yoshihiro SATO ,  Yuichi TAJIMA

IPC: G01N15/14 ,  G01N1/38

Abstract: An inspection device for a pillar shaped honeycomb filter includes: a housing portion that can house a pillar shaped honeycomb filter; an introduction pipe and a discharge pipe through which a gas can flow, each of the introduction pipe and the discharge pipe being connected to the housing portion; a particle generation portion for generating particles; a particle introduction portion for introducing the particles generated by the particle generation portion into the introduction pipe; a gas stirring portion arranged in the introduction pipe on an upstream side of the particle introduction portion in a gas flow direction; and particle counters for measuring the number of particles, the particle counters being arranged in the introduction pipe and the discharge pipe on a downstream side of the particle introduction portion in the gas flow direction.

公开(公告)号：US20220314250A1

公开(公告)日：2022-10-06

申请号：US17578773

申请日：2022-01-19

Applicant: NGK INSULATORS, LTD.

Inventor： Yoshihiro SATO ,  Shuji UEDA ,  Yuichi TAJIMA ,  Seiya NAKANO ,  Ken ITAZU ,  Koichi SENDO ,  Yutaka ISHII

IPC: B05B7/14 ,  B01D46/00 ,  B01D46/24

Abstract: A method for manufacturing a pillar-shaped honeycomb structure filter including; attaching ceramic particles to a surface of the first cells by ejecting an aerosol including the ceramic particles toward the inlet side end surface from a direction perpendicular to the inlet side end surface while applying a suction force to the outlet side end surface to suck the ejected aerosol from the inlet side end surface, wherein the ejection of the aerosol is carried out using an aerosol generator including a drive gas flow path for flowing a pressurized drive gas, a supply port provided on the way of the drive gas flow path and capable of sucking the ceramic particles from an outer peripheral side of the drive gas flow path toward an inside of the drive gas flow path, and a nozzle attached to a tip of the drive gas flow path and capable of ejecting the aerosol.

公开(公告)号：US20220111555A1

公开(公告)日：2022-04-14

申请号：US17445851

申请日：2021-08-25

Applicant: NGK INSULATORS, LTD.

Inventor： Keita ITO ,  Yuichi TAJIMA ,  Yoshimasa KONDO

IPC: B28B3/26 ,  B28B3/20

Abstract: An extrusion molding machine includes a molding portion having one end and other end, the one end having a die, the other end being connected to an extrusion port of an extrusion portion, the molding portion also including a screen arranged therein. The molding portion includes: two or more temperature controlling members between the screen and the die; and a heat insulating member arranged between the two or more temperature controlling members.

公开(公告)号：US20180354863A1

公开(公告)日：2018-12-13

申请号：US16106215

申请日：2018-08-21

Applicant: NGK INSULATORS, LTD.

Inventor： Yuichi TAJIMA ,  Ryuji YAMAGUTI

IPC: C04B38/10 ,  B28B3/20 ,  C04B38/00

CPC classification number: C04B38/103 ,  B28B3/20 ,  C04B38/0006

Abstract: A manufacturing method of a ceramic formed body, including: a mixing step in which a raw material for forming a ceramic formed body is dryly mixed, and then, a liquid is added to the obtained dry mixture to wetly mix the mixture; a kneading step in which a mixture obtained in the mixing step is kneaded; an injection step in which supercritical carbon dioxide in the state of supercritical fluid is injected into a kneaded product obtained in the kneading step; and a forming step in which a forming raw material containing the supercritical carbon dioxide obtained in the kneading step and the injection step is extruded to form the ceramic formed body.

公开(公告)号：US20170287155A1

公开(公告)日：2017-10-05

申请号：US15467069

申请日：2017-03-23

Applicant: NGK INSULATORS, LTD.

Inventor： Ayaka SAKAI ,  Satoshi SAKASHITA ,  Shingo SOKAWA ,  Yuichi TAJIMA

IPC: G06T7/60 ,  B01D46/24

CPC classification number: G06T7/60 ,  B01D46/247 ,  B01D46/2474 ,  B01D2046/2433 ,  B01D2046/2481 ,  B01D2046/2496 ,  B01D2279/30 ,  C04B28/24 ,  C04B35/195 ,  C04B38/0006 ,  C04B2111/00793 ,  C04B2111/0081 ,  C04B2235/3217 ,  C04B2235/3244 ,  C04B2235/349 ,  F01N3/022 ,  F01N2330/06 ,  G06T2200/04 ,  Y02T10/20 ,  C04B38/0645 ,  C04B14/324 ,  C04B14/4656 ,  C04B24/2623 ,  C04B38/0019

Abstract: In a porous body, a surface layer thickness Ts takes a relatively small value satisfying P≧0.54 Ts (formula (1)), the surface layer thickness Ts being derived by a microstructure analysis using the porous-body data that is prepared through three-dimensional scanning of a region including a surface (inflow plane 61) of the porous body. Here, P denotes a porosity [%] of the porous body, and 0%

公开(公告)号：US20230131763A1

公开(公告)日：2023-04-27

申请号：US17822153

申请日：2022-08-25

Applicant: NGK INSULATORS, LTD.

Inventor： Seiya NAKANO ,  Yuichi TAJIMA

IPC: B01D46/00 ,  B01D46/24

Abstract: A particle adhesion device includes: a holder; a chamber; a nozzle; an intake port; and a flow control member. The holder holds a filter substrate having a first end face and a second end face. The chamber is in communication with the holder and is arranged so that the first end face of the filter substrate faces a space in the chamber. The nozzle is arranged on an opposite surface of the chamber opposing to the first end face of the filter substrate, and can inject an aerosol containing particles toward the first end face of the filter substrate. The intake port is provided on the opposite surface of the chamber and can incorporate an ambient gas. The flow control member is arranged on the opposite surface provided with the intake port, and can control the flow of the ambient gas.

公开(公告)号：US20220314154A1

公开(公告)日：2022-10-06

申请号：US17652310

申请日：2022-02-24

Applicant: NGK INSULATORS, LTD.

Inventor： Yoshihiro SATO ,  Shuji UEDA ,  Koichi SENDO ,  Yutaka ISHII ,  Yuichi TAJIMA ,  Seiya NAKANO ,  Ken ITAZU

IPC: B01D46/24

Abstract: A pillar-shaped honeycomb structure including a plurality of first cells extending from an inlet side end surface to an outlet side end surface, and a plurality of second cells extending from the inlet side end surface to the outlet side end surface, with a porous partition wall interposed therebetween, wherein a porous film having a porosity higher than that of the partition walls is provided on a surface of each of the first cells, and at a cross-section orthogonal to the direction in which the first cells of the pillar-shaped honeycomb structure filter extend, the average thickness of the porous film in the central portion is larger than the average thickness of the porous film in the outer peripheral portion.

公开(公告)号：US20220219368A1

公开(公告)日：2022-07-14

申请号：US17447703

申请日：2021-09-15

Applicant: NGK INSULATORS, LTD.

Inventor： Kosuke IWATA ,  Ryuji YAMAGUCHI ,  Yuichi TAJIMA

IPC: B29C48/31 ,  B29C48/07

Abstract: An extrusion molding die includes a pair of die bodies, the die bodies have: a pair of lip portions arranged so as to face each other to form a slit port; and a pair of introduction portions arranged so as to face each other to form an introduction port. One die body is a coat hanger die having at least one thickness adjustment mechanism, and the other die body is a fishtail die.

公开(公告)号：US20220074658A1

公开(公告)日：2022-03-10

申请号：US17304884

申请日：2021-06-28

Applicant: NGK INSULATORS, LTD.

Inventor： Yoshimasa FUMA ,  Yuichi TAJIMA ,  Yoshimasa KONDO ,  Kensuke OKUMURA

IPC: F26B3/34 ,  B28B11/24 ,  F26B25/20

Abstract: A dielectric drying method for ceramic formed bodies includes drying a plurality of ceramic formed bodies placed side by side in an arrangement direction Y perpendicular to a conveying direction X on an upper surface of a drying table by conveying the ceramic formed bodies between electrodes of an upper electrode and a lower electrode, and applying a high frequency between the electrodes. The upper electrode includes: a central region; and two end regions between which the central region is located, in the arrangement direction Y. The central region has a flat surface portion parallel to an upper end surface of the ceramic formed body. Each of the two end regions has an inclined portion inclined toward the lower electrode side