4. Synthetic resins or natural rubbers -- part of the class 520 ser
  5. Synthetic resins
  6. From phenol, phenol ether, or inorganic phenolate

Tokyo Ohka Kogya Co., Ltd.

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Novolak resin precursor, novolak resin and positive...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Reexamination Certificate

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Slit nozzle and apparatus for supplying treatment liquid...

Coating apparatus – Projection or spray type
Reexamination Certificate

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Stock developer solutions for photoresists and developer solutio

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Forming nonplanar surface
Patent

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Undercoating composition for photolithographic resist

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From phenol – phenol ether – or inorganic phenolate
Patent

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