Watch component, watch movement and watch

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12001169
APP PUB NO 20210018875A1
SERIAL NO

16929212

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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For example, an escape gear portion as a watch component includes a substrate containing silicon as a main component, and a light reflecting layer including a first silicon oxide layer, a silicon layer, and a second silicon oxide layer that are stacked, in this order, at the substrate, wherein, when the light reflecting layer is viewed in plan view, the light reflecting layer includes a first region and a second region, and a thickness of the silicon layer in the first region is different from a thickness of the silicon layer in the second region.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
SEIKO EPSON CORPORATIONTOKYO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Funakawa, Takeo Chino, JP 21 215

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