4. Plastic and nonmetallic article shaping or treating: processes
  5. Outside of mold sintering or vitrifying of shaped inorganic...
  6. Producing microporous article

Toshinari Watanabe

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Method for producing a silicon nitride filter

Plastic and nonmetallic article shaping or treating: processes – Outside of mold sintering or vitrifying of shaped inorganic... – Producing microporous article
Reexamination Certificate

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Method of producing silicon nitride honeycomb filter

Plastic and nonmetallic article shaping or treating: processes – Outside of mold sintering or vitrifying of shaped inorganic... – Producing silicon nitride containing product
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2427793

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