公开(公告)号：US20250010425A1

公开(公告)日：2025-01-09

申请号：US18897639

申请日：2024-09-26

Applicant: NHK SPRING CO., LTD.

Inventor： Masahiro FUJII ,  Daisuke FUJINO ,  Yoshihito ARAKI ,  Naoya AIKAWA ,  Nobuyuki FURUGORI ,  Tomonori KASONO

IPC: B24B37/04

Abstract: A polishing device according to an embodiment comprises: a supporting unit for supporting a polishing tool, a stage for holding an object to be polished; a first drive unit for causing the support unit and the stage to move relative to one another along a shape of a polishing surface of the object to be polished, and a second drive unit for causing the support unit to control synchronously with the first drive unit such that one predetermined end of a polishing member attached to the polishing tool faces in a movement direction of the polishing member.

公开(公告)号：US20250001481A1

公开(公告)日：2025-01-02

申请号：US18885162

申请日：2024-09-13

Applicant: NHK SPRING CO., LTD.

Inventor： Yoshihito ARAKI ,  Yuusuke FUKUOKA ,  Nobuyuki FURUGORI

IPC: B21J15/02

Abstract: A novel punch for riveting with reduced load on a shaft of a rivet is provided. Alternatively, a device that is disposed with a novel punch for riveting with reduced load on a shaft of a rivet is provided. Alternatively, a method for joining members using a novel punch for riveting with reduced load on a shaft of a rivet is provided. A punch for riveting according to an embodiment of present invention includes joining a first member having a convex part and a second member having a through hole fitting with the convex part by plastically deforming the convex part, wherein a contact surface with the convex part is inclined in a range of 80° to 89° with respect to a center axis.