Ngk Spark Plug Company, Limited

Takuya Takase

Naoki Yamada

Akiyoshi Kato

Noboru Fujita

An anti-seizing agent including: a first solid lubricant containing at least one of bismuth and a bismuth compound; and a second solid lubricant containing at least one of graphite, molybdenum disulfide and boron nitride. The anti-seizing agent satisfies the relationships 20 weight %&#x2266;a&#x2266;90 weight % and 10 weight %&#x2266;d&#x2266;80 weight %, in which a sum of the contents of the first solid lubricant and the second solid lubricant in the anti-seizing agent is taken as 100 weight %, and a represents a content of the first solid lubricant and d represents a content of the second solid lubricant.

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Inabe, Japan

Takuya Takase