公开(公告)号：US20230200523A1

公开(公告)日：2023-06-29

申请号：US17417303

申请日：2019-12-26

Applicant: SUNSTAR INC.

Inventor： Kazuhiro KOMATSU ,  Keisuke KATO ,  Jurgen BUTZ

IPC: A46B3/00 ,  A61C15/00

CPC classification number: A46B3/005 ,  A61C15/00 ,  A46B2200/108

Abstract: In an interdental cleaning tool, a flexible cleaning portion including a core covering portion that covers a core base, and a plurality of recesses that are formed due to hold pins during insert molding. The recesses are formed along a longitudinal direction of the core base portion. A core base exposed portion of each recess has a shape elongated in an oblique direction that intersects both the longitudinal direction and a lateral direction orthogonal to the longitudinal direction, and, at a position where a dimension of the core base exposed portion in the longitudinal direction is maximum, the maximum dimension is 0.25 mm or less.

公开(公告)号：US20170319309A1

公开(公告)日：2017-11-09

申请号：US15525168

申请日：2015-11-06

Applicant: SUNSTAR INC.

Inventor： Anri GENGYO ,  Keisuke KATO

IPC: A61C15/02 ,  A46B9/02 ,  A46B5/00 ,  A46B9/04 ,  A46B15/00

CPC classification number: A61C15/02 ,  A46B5/0029 ,  A46B9/026 ,  A46B9/04 ,  A46B15/0093 ,  A46B2200/108

Abstract: An interdental cleaning device (1) for being inserted into an interdental space to clean the interdental space includes a rod-shaped core portion (12); and a soft portion (20) being softer than the core portion (12) and covering the outer surface of at least a part of the core portion (12) including a core front end (P1) as the front end of the core portion (12), wherein the soft portion (20) has a partial length of 0.5 mm or more between the core front end (P1) and a soft front end (P2) as the front end of the soft portion (20).