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person:("yasutaka")
SILICON NITRIDE SINTERED COMPACT, AND ROLLING ELEMENT AND BEARING USING THE SAME
SILICON NITRIDE SINTERED BODY, ROLLING BODY USING SAME, AND BEARING
SILICON NITRIDE SINTERED BODY, ROLLING BODY USING SAME, AND BEARING
MANUFACTURING METHOD OF VEHICLE KNUCKLE, AND VEHICLE KNUCKLE
ELECTRONIC CONTROL DEVICE AND ELECTRONIC CONTROL SYSTEM INCLUDING THE SAME