Patents by Inventor Shinji Yuumei

Shinji Yuumei has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10918466
    Abstract: [Problem] To provide a base part, an interdental cleaning tool, and a method for manufacturing the interdental cleaning tool, capable of preventing bending of a shaft part when a resin material is filled from an insertion end. [Solution] A base part includes a shaft part (20) and a grip part (30). The base part is used for forming an interdental cleaning tool by filling, inside a metal mold having a shape that forms a filling space around the shaft part (20), a resin material into the filling space with the shaft part (20) clamped by a holding pin. The shaft part (20) includes a first guide groove (24) formed on one side with respect to an axially parallel plane and a second guide groove (26) formed on the other side with respect to the axially parallel plane.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: February 16, 2021
    Assignee: KOBAYASHI PHARMACEUTICAL CO., LTD.
    Inventors: Tasuku Kikkawa, Shinji Yuumei
  • Publication number: 20190343608
    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 (50) with synthetic resin, which includes first and second mold members (50A, 50B); 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 (50A, 50B). First and second molds include: first and second contact surfaces (51A, 51B); pair of first and second spaced-apart portions (54A, 54B); and first and second connection portions (52A, 52B), angle (0) between each of first and second spaced-apart portions (54A, 54B) and separation plane being acute.
    Type: Application
    Filed: February 14, 2018
    Publication date: November 14, 2019
    Applicant: KOBAYASHI PHARMACEUTICAL CO., LTD.
    Inventors: Tasuku KIKKAWA, Shinji YUUMEI
  • Publication number: 20180256298
    Abstract: [Problem] To provide a base part, an interdental cleaning tool, and a method for manufacturing the interdental cleaning tool, capable of preventing bending of a shaft part when a resin material is filled from an insertion end. [Solution] A base part includes a shaft part (20) and a grip part (30). The base part is used for forming an interdental cleaning tool by filling, inside a metal mold having a shape that forms a filling space around the shaft part (20), a resin material into the filling space with the shaft part (20) clamped by a holding pin. The shaft part (20) includes a first guide groove (24) formed on one side with respect to an axially parallel plane and a second guide groove (26) formed on the other side with respect to the axially parallel plane.
    Type: Application
    Filed: August 26, 2016
    Publication date: September 13, 2018
    Applicant: KOBAYASHI PHARMACEUTICAL CO., LTD.
    Inventors: Tasuku KIKKAWA, Shinji YUUMEI
  • Patent number: D788304
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: May 30, 2017
    Assignee: Kobayashi Pharmaceutical Co., Ltd.
    Inventors: Tasuku Kikkawa, Shinji Yuumei
  • Patent number: D788305
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: May 30, 2017
    Assignee: KOBAYASHI PHARMACEUTICAL CO., LTD.
    Inventors: Tasuku Kikkawa, Shinji Yuumei
  • Patent number: D809303
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: February 6, 2018
    Assignee: KOBAYASHI PHARMACEUTICAL CO., LTD.
    Inventors: Tasuku Kikkawa, Shinji Yuumei
  • Patent number: D841251
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: February 19, 2019
    Assignee: KOBAYASHI PHARMACEUTICAL CO., LTD.
    Inventors: Tasuku Kikkawa, Shinji Yuumei