公开(公告)号：US20230148741A1

公开(公告)日：2023-05-18

申请号：US17050534

申请日：2019-04-26

Applicant: KOBAYASHI PHARMACEUTICAL CO., LTD.

Inventor： Tasuku KIKKAWA

IPC: A46B9/02 ,  A61C15/02

CPC classification number: A46B9/025 ,  A61C15/02 ,  A46B2200/108

Abstract: Provided is an interdental cleaning tool that can reduce at least one of a resistance against insertion in an interdental space and a resistance against withdrawal from an interdental space, and has a high capability of scraping out deposit from an interdental space. The interdental cleaning tool includes a base portion including a shaft portion (20) and a cleaning portion (40). The cleaning portion (40) includes a cleaning portion body (50) and a plurality of bristles (60). The plurality of bristles (60) include at least one of a type of top end-oriented bristles and a type of base end-oriented bristles. The top end-oriented bristle has a shape titling to a top end side of the shaft portion (20) as advancing away from an outer circumferential surface of the cleaning portion body (50). The base end-oriented bristle has a shape tilting to a base end side of the shall portion (20) as advancing away from the outer circumferential surface of the cleaning portion body (50).

公开(公告)号：US20220117385A1

公开(公告)日：2022-04-21

申请号：US17256247

申请日：2019-05-16

Applicant: KOBAYASHI PHARMACEUTICAL CO., LTD.

Inventor： Tasuku KIKKAWA ,  Yuji SAIKI ,  Tomokazu YOSHIDA

IPC: A46B5/00 ,  A46B1/00 ,  A61C15/00

Abstract: Provided is an interdental cleaning tool that can be smoothly inserted between back teeth. An interdental cleaning tool according to the present invention includes: a cleaning tool body that is made of a synthetic resin, and includes a grip portion that is capable of being gripped with fingers of a user and a shaft portion that extends in one direction from the grip portion; and a cleaning portion configured to clean between teeth, covering a leading end of the shaft portion, and made of an elastomer, wherein (angle b)/(angle a) is 0.82 or more, where the angle a is a rotational angle (degrees) when a torque value A is measured, the torque value A being a maximum torque value (N·cm) when the grip portion is rotated at a rotational speed of 10 rpm about a position located 6 mm away from a leading end of the cleaning portion, and the angle b is a rotational angle (degrees) when a torque value B is measured, the torque value B being a maximum torque value (N·cm) when the grip portion is rotated at a rotational speed of 10 rpm about a position located 10 mm away from the leading end of the cleaning portion.

公开(公告)号：US20210289934A1

公开(公告)日：2021-09-23

申请号：US17050557

申请日：2019-04-26

Applicant: KOBAYASHI PHARMACEUTICAL CO., LTD.

Inventor： Tasuku KIKKAWA

IPC: A46B9/04 ,  A46B3/04

Abstract: An interdental cleaning tool that is easily insertable in an interdental space by a user and has a high cleaning capability includes a base portion including a shaft portion having a shape insertable in an interdental space, and a cleaning portion that covers at least a portion of the shaft portion and is capable of cleaning an interdental space. The shaft portion has a triangular cross section on an orthogonal plane perpendicularly intersecting an axial direction of the shaft portion.

公开(公告)号：US20210236252A1

公开(公告)日：2021-08-05

申请号：US17050513

申请日：2019-04-26

Applicant: KOBAYASHI PHARMACEUTICAL CO., LTD.

Inventor： Tasuku KIKKAWA

IPC: A61C15/02

Abstract: Provided is an interdental cleaning tool that can reduce at least one of a resistance against insertion in an interdental space and a resistance against withdrawal from an interdental space, and has a high capability of scraping out deposit from an interdental space. The interdental cleaning tool includes a base portion including a shaft portion (20) and a cleaning portion (40). The cleaning portion (40) includes a cleaning portion body (50) and a plurality of bristles (60). The plurality of bristles (60) include at least one of a type of top end-oriented bristles and a type of base end-oriented bristles. The top end-oriented bristle has a shape titling to a top end side of the shaft portion (20) as advancing away from an outer circumferential surface of the cleaning portion body (50). The base end-oriented bristle has a shape tilting to a base end side of the shaft portion (20) as advancing away from the outer circumferential surface of the cleaning portion body (50).

公开(公告)号：US20190192265A1

公开(公告)日：2019-06-27

申请号：US16309259

申请日：2017-09-26

Applicant: KOBAYASHI PHARMACEUTICAL CO., LTD.

Inventor： Tasuku KIKKAWA ,  Narutomo SHIRAKI ,  Noboru KUSAKABE

IPC: A61C15/02 ,  C08L35/00 ,  C08J5/10 ,  C08L23/12 ,  C08K3/40

CPC classification number: A61C15/02 ,  A46B2200/108 ,  C08J5/10 ,  C08K3/40 ,  C08L23/12 ,  C08L35/00

Abstract: An interdental cleaning tool (1) that includes a base (10) that has a shaft (20) shaped to be capable of being inserted between teeth, the base (10) being formed from a composite material that contains a synthetic resin, a reinforcement containing glass, and a copolymer having, as structural units, a polyolefin and an anhydride of an unsaturated carboxylic acid.