Nippon Pillar Packing Co., Ltd.

Seiichi Yamashita

Takahisa Ueda

Masaru Fujiwara

Akio Ohtani

Masao Shimizu

In a braiding yarn made of expanded graphite, a reinforcing wire membermade of a stainless steel wire which is easily plastically deformed, and having a diameter of 0.05 to 0.2 mm is spirally wound around the outer periphery of a twisted expanded graphite base memberhaving a width of 3 mm and a thickness of 0.38 mm, at a narrow pitch P of 0.5 to 5 mm without slack. Alternatively, the reinforcing wire member is wound so as to be embedded in the inner side of and along an edgeof an expanded graphite tape which is spirally exposed from the outer surface of the expanded graphite base member

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Sanda, Japan

Seiichi Yamashita