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2024
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Invention
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Tuning fork quartz crystal oscillator and resonator.
A tuning fork quartz crystal oscillator and... |
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2023
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Invention
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Tuning fork crystal oscillator plate and manufacturing method therefor, and piezoelectric device.... |
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2019
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Invention
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Polished quartz crystal frequency wafer with boss structure on edge. Disclosed is a polished quar... |
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2016
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Invention
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Quartz crystal resonator having circular wafer structure and method for manufacturing same. A qua... |
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Invention
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Piezoelectric quartz wafer with single convex structure. A piezoelectric quartz wafer with a sing... |
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Invention
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Novel piezoelectric quartz wafer with dual-convex structure and processing craft therefor. Disclo... |
