Yukio Yoshikawa

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Active matrix liquid crystal display element and projection type

Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent

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Active matrix liquid crystal display element and projection type

Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent

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Air filter unit for use in respirators

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment
Patent

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Control circuit for an electromagnetically driven programming sh

Patent

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Device for detecting the time of termination of opening operatio

Patent

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Profile ID: LFUS-PAI-P-343126

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