The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 2024
Filed:
Nov. 18, 2019
Kobayashi Pharmaceutical Co., Ltd., Osaka, JP;
Tasuku Kikkawa, Osaka, JP;
Kobayashi Pharmaceutical Co., Ltd., Osaka, JP;
Abstract
A method for manufacturing an interdental cleaning tool is provided that is capable of suppressing molding defects of the interdental cleaning tool. The method for manufacturing an interdental cleaning tool includes: a first step of injecting a base material into primary moldsto mold a base material portionincluding a base sectionand a shaft sectionextending from the base section; and a second step of injecting a soft material into secondary molds, in which the base material portionis placed, from a position corresponding to a middle partof the shaft sectionlocated further toward the proximal side than a distal end partto mold a soft portionincluding a covering sectionthat covers the distal end partof the shaft sectionand a plurality of projectionsprojecting from the covering section, and an extension soft portionthat covers the middle partof the shaft sectionso as to extend the covering sectiontoward the proximal side of the shaft section, the extension soft portionnot having the projections