Measurement device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11859969
APP PUB NO 20230052870A1
SERIAL NO

17976612

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A measurement device includes: a probe part including a probe configured to measure a surface of an object to be measured and is attached so as to swing around a swing center according to a shape of the surface of the object to be measured; a scale configured to measure displacement by swinging of the probe part; a scale head configured to read a scale mark of the scale; and an arm part to which the probe part is attached, the arm part is attached so as to swing around the swing center integrally with the probe part, and the scale is attached to the arm part. When thermal expansion coefficients of the probe part, the arm part and the scale are α, β and γ respectively, the measurement device satisfies a condition of (α+γ)−1/2α≤β≤(α+γ)+1/2α.

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Patent Owner(s)

Patent OwnerAddress
TOKYO SEIMITSU CO LTDHACHIOJI-SHI TOKYO 192-8515

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Inoue, Takuya Tsuchiura, JP 158 949
Morii, Hideki Tsuchiura, JP 53 499

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