Watch having a first barrel complete with a diameter that is less than a diameter of a second barrel complete

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United States of America Patent

PATENT NO 11835924
APP PUB NO 20210232094A1
SERIAL NO

17158106

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A watch includes a first barrel complete including a first barrel arbor, a first mainspring, and a first barrel, and a second barrel complete that includes a second barrel arbor, a second mainspring, and a second barrel, is disposed side by side in a planar direction orthogonal to a shaft direction of the first barrel arbor, and receives transmission of rotation of the first barrel complete. A tooth tip circle diameter of the first barrel complete is smaller than a tooth tip circle diameter of the second barrel complete, and a thickness of the first barrel is greater than a thickness of the second barrel.

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Patent Owner(s)

Patent OwnerAddress
SEIKO EPSON CORPORATIONTOKYO 160-8801

International Classification(s)

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  • 2021 Application Filing Year
  • G04B Class
  • 238 Applications Filed
  • 139 Patents Issued To-Date
  • 58.41 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hayashi, Shigeyuki Shiojiri, JP 68 711

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Patent Citation Ranking

  • 0 Citation Count
  • G04B Class
  • 0 % this patent is cited more than
  • 2 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges2575701 - 10020406080100120140160180200220240260280

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