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:
Apr. 25, 2023
Filed:
Feb. 14, 2018
Kobayashi Pharmaceutical Co., Ltd., Osaka, JP;
Tasuku Kikkawa, Osaka, JP;
Shinji Yuumei, Toyama, JP;
KOBAYASHI PHARMACEUTICAL CO., LTD., Osaka, JP;
Abstract
In order to prevent shaft portion from being broken in ejection of base portion from mold, method for manufacturing interdental cleaning tool includes: base portion forming step of forming base portion by filling first space of primary mold () with synthetic resin, which includes first and second mold members (A,B); and cleaning portion forming step of forming cleaning portion around shaft portion by filling second space of secondary mold with elastomer. Base portion forming step uses first and second mold members (A,B). First and second molds include: first and second contact surfaces (A,B); pair of first and second spaced-apart portions (A,B); and first and second connection portions (A,B), angle (θ) between each of first and second spaced-apart portions (A,B) and separation plane being acute.