BEARING APPARATUS AND LASER APPARATUS COMPRISING BEARING APPARATUS

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20240035514A1
SERIAL NO

18357356

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An object of the invention is to provide a bearing apparatus which is superior in corrosion resistance against a fluorine gas, and superior in dimensional accuracy and durability. For achieving the object, a bearing apparatus for use in an environment where a fluorine gas exists is provided. The bearing apparatus comprises: a magnetic bearing comprising a magnetic member and an electromagnetic coil; and a touchdown bearing for protecting the magnetic bearing, wherein the touchdown bearing comprises an inner ring, an outer ring, and plural rolling members arranged between the inner ring and the outer ring, wherein the inner ring and the outer ring in the touchdown bearing are constructed by using a NiCrAl alloy.

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Patent Owner(s)

Patent OwnerAddress
EBARA CORPORATION11-1 HANEDA ASAHI-CHO OTA-KU TOKYO 1448510
GIGAPHOTON INCTOCHIGI COUNTY JAPAN TOCHIGI

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
HIRASAWA, Kazuki Tokyo, JP 1 0
ISHII, Takuya Tochigi, JP 156 1801
NIIZUMA, Motoi Tokyo, JP 1 0
SATOH, Ichiju Tokyo, JP 10 119

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