Two-color molding method and two-color molded article

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United States of America Patent

PATENT NO 9895859
SERIAL NO

14688295

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Provided are a two-color molding method, and a two-color molded article capable of suppressing deterioration of the appearance quality which is caused by resin shrinkage or resin deformation in the two-color molding. The two-color molding method includes: molding a first resin portion by a common die and a primary die; and molding a second resin portion integrally with the first resin portion by the common die and a secondary die. An abutting portion is molded on an edge of the first resin portion to protrude toward the secondary die when the first resin portion is molded, and a distal end surface of the abutting portion is maintained to be abutted on a cavity surface or a parting surface of the secondary die when the second resin portion is molded. The deformation of the abutting portion or the first resin portion is suppressed to suitably mold the second resin portion.

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Patent Owner(s)

Patent OwnerAddress
KOITO MANUFACTURING CO LTDMINATO-KU TOKYO 108-8711

International Classification(s)

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  • 2015 Application Filing Year
  • B29C Class
  • 5693 Applications Filed
  • 4194 Patents Issued To-Date
  • 73.67 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201520162017201820192020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ito, Hiroya Shizuoka, JP 32 176

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Patent Citation Ranking

  • 0 Citation Count
  • B29C Class
  • 0 % this patent is cited more than
  • 7 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges834979461962301 - 1011 - 2021 - 3031 - 4041 - 5061 - 7005010015020025030035040045050055060065070075080085090095010001050

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