GAS SENSOR
    4.
    发明公开
    GAS SENSOR 审中-公开

    公开(公告)号:EP4089407A1

    公开(公告)日:2022-11-16

    申请号:EP22165000.5

    申请日:2022-03-29

    IPC分类号: G01N27/407 G01N33/00

    摘要: In a gas sensor (1) including a sensor element (5), a metal shell (3), an outer casing (11), metal terminals (41 to 44), a separator (13), lead wires (31 to 34), and a rubber cap (15), the separator (13) is interposed and fixed between the rubber cap (15) located on a rear side with respect to the separator (13) and elastically compressed in an axial direction DX and a front side member (67) located on a front side with respect to the separator (13). A compression set of the rubber cap (15) after the rubber cap (15) is compressed by 25% in the axial direction DX in a temperature environment of 250°C for 67 hours is 32.3% or less.

    MULTILAYER WIRING BOARD
    5.
    发明公开

    公开(公告)号:EP4057784A1

    公开(公告)日:2022-09-14

    申请号:EP20884642.8

    申请日:2020-05-22

    IPC分类号: H05K3/46

    摘要: To make a ceramic substrate that is used for a multilayer wiring substrate reusable.
    A multilayer wiring substrate includes a first wiring substrate including a plurality of stacked layers made of a thermosetting resin and having a wiring layer formed between each adjacent layers of the layers in a state in contact with the adjacent layers; a second wiring substrate made of a ceramic; and a joining layer disposed between a back surface of the first wiring substrate and a front surface of the second wiring substrate and configured to join the first wiring substrate and the second wiring substrate to each other. At least a surface of the joining layer adjacent to the second wiring substrate is made of a thermoplastic resin.

    CUTTING INSERT AND CUTTING TOOL
    6.
    发明公开

    公开(公告)号:EP3922381A1

    公开(公告)日:2021-12-15

    申请号:EP20752480.2

    申请日:2020-02-07

    IPC分类号: B23B27/10

    摘要: A structure for cooling a rake face in a region near a tip of a cutting edge is provided.
    A cutting insert (10) includes a rake face (22), a cutting edge (20) formed on an outer periphery of the rake face (22), a base portion (24) that supports the rake face (22), and an internal cooling path (40) through which fluid for cooling the rake face (22) flows. The internal cooling path (40) includes an introduction flow path (44) and a cooling flow path (42), and the cooling flow path (42) is disposed behind a region in which a chip of a workpiece comes into contact with rake face (22). The cooling flow path (42) is provided at a depth of less than or equal to 1.5 mm from the rake face (22).

    FINE BUBBLE GENERATION DEVICE AND FINE BUBBLE GENERATION METHOD

    公开(公告)号:EP3815774A1

    公开(公告)日:2021-05-05

    申请号:EP19825692.7

    申请日:2019-06-28

    IPC分类号: B01F5/06 B01F3/04

    摘要: A fine bubble generation device in one aspect of the present disclosure is a device that generates fine bubbles in a liquid by causing the liquid to pass through a porous element having many pores. In the fine bubble generation device, a differential pressure is applied between first and second sides of the element, and, by the applied differential pressure, the liquid disposed on the first side of the element is passed through the element and is jetted toward the second side to thereby generate fine bubbles. In this fine bubble generation device, the flow speed of the liquid during passage through the element is 0.009769 [m/s] or higher. The fine bubbles can thereby be generated efficiently.