4. Metal working
  5. Method of mechanical manufacture
  6. Electrical device making

Yoji Ishikawa

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Apparatus for display and selection of available television chan

Television – Basic receiver with additional function – For display of additional information
Patent

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Circuit and method for modulating pulse width

Pulse or digital communications – Pulse width modulation
Reexamination Certificate

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Deflection yoke

Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent

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Image-projection system

Telegraphy – Systems – Simplex-reversing periodic
Patent

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Method and apparatus for producing electronic devices which each

Metal working – Method of mechanical manufacture – Electrical device making
Patent

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Profile ID: LFUS-PAI-P-441401

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