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Patent applications and USPTO patent grants for AKIYAMA; Yumi.The latest application filed is for "piezoelectric composition, piezoelectric element, piezoelectric device, piezoelectric transformer, ultrasonic motor, ultrasonic wave-generating element, and filter element".
Patent | Date |
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Piezoelectric Composition, Piezoelectric Element, Piezoelectric Device, Piezoelectric Transformer, Ultrasonic Motor, Ultrasonic Wave-generating Element, And Filter Element App 20220140226 - KATOH; Hiroki ;   et al. | 2022-05-05 |
Piezoelectric Element, Piezoelectric Actuator, And Piezoelectric Transformer App 20210305484 - HIROSE; Yuiko ;   et al. | 2021-09-30 |
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