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AssigneeNGK Insulators, Ltd.
InventorsYukinori Nakamura, Yoshimasa Kondo
Estimating the term…
The back side space of a mouth ring for forming a honeycomb-shaped green product is evacuated by means of a pressure difference-creating means constructed of a pressure regulating chamber and a pump, and then, the pressure in the back side space of the mouth ring is set to be tenth or below of the pressure in the front space of the mouth ring. Then, a raw material gas is introduced and excited to generate a plasma raw material gas, which is introduced into the mouth ring efficiently commensurate with the pressure difference created by means of the pressure difference-creating means. As a result, a thin film made of diamond or diamond-like carbon is made in the mouth ring in good quality.
A mouth ring for forming a honeycomb-shaped green product, comprising:
A method for fabricating a mouth ring to form a honeycomb-shaped green product which includes a circular introducing portion to introduce a green product material, a rectangular injecting portion to inject said green product material, and a wringing portion, which is located between said circular introducing portion and said rectangular injecting portion, to wring out said green product material of said circular introducing portion to said rectangular injecting portion, comprising the steps of:
An apparatus for fabricating a mouth ring to form a honeycomb-shaped green product which includes a circular introducing portion to introduce a green product material, a rectangular injecting portion to inject said green product material, and a wringing portion, which is located between said circular introducing portion and said rectangular injecting portion, to wring out said green product material of said circular introducing portion to said rectangular injecting portion, comprising:
Dependencies are inferred from the claim text.