4. Chemistry: electrical and wave energy
  5. Processes and products

Yasuo Oka

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Aluminum substrate for magnetic recording media

Metal treatment – Compositions – Heat treating
Patent

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Apparatus for printing characters onto both surfaces of a sheet

Typewriting machines – Including type-set-assemblage mounted on carrier and... – Plural type-heads mounted for selective individual...
Patent

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Fastening structure of tube and car assembly

Receptacles – Closures – Removable closure guided in rotary movement
Patent

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Method for production of colored aluminum article

Chemistry: electrical and wave energy – Processes and products
Patent

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Micro-passage chip

Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Bench scale
Reexamination Certificate

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Profile ID: LFUS-PAI-P-247161

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