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Seiji Hidaka

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Active-type band-pass filter

Wave transmission lines and networks – Coupling networks – Frequency domain filters utilizing only lumped parameters
Patent

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Analytical element

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Calorimeter
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Apparatus for starting drive of load by high-voltage battery

Electricity: battery or capacitor charging or discharging – Battery or cell discharging – Regulated discharging
Reexamination Certificate

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Band-pass filter apparatus using superconducting integrated nonr

Superconductor technology: apparatus – material – process – High temperature devices – systems – apparatus – com- ponents,... – High frequency waveguides – resonators – electrical networks,...
Patent

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Coaxial resonator, filter, duplexer, and communication device

Wave transmission lines and networks – Plural channel systems – Having branched circuits
Reexamination Certificate

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Profile ID: LFUS-PAI-P-545200

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