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Yamada Tomohiro, Komazawa Masato, Hatta Tetsuya, Nehagi Takatoshi: (Ja) 弾性体の検査方法、検査装置、及び寸法予測プログラム, (En) Elastic body inspection method, inspection device, and dimension prediction program. NGK Insulators, Yamada Tomohiro, Komazawa Masato, Hatta Tetsuya, Nehagi Takatoshi, WATANABE Kazuhira, November 3, 2005: WO/2005/104258 (4 worldwide citation)

(EN) There is provided an inspection method for inspecting a piezoelectric/electrostrictive actuator including a piezoelectric/electrostrictive body and at least two electrodes. The inspection method picks up frequency characteristic when the piezoelectric/electrostrictive actuator is vibrated and a ...


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Ohnishi Takao, Yamada Tomohiro, Nehagi Takatoshi: (Ja) 圧電素子の検査方法、検査装置及び分極処理方法, (En) Piezoelectric element inspection method, inspection device, and polarization processing method. NGK Insulators, Ohnishi Takao, Yamada Tomohiro, Nehagi Takatoshi, PROSPEC PATENT FIRM, October 19, 2006: WO/2006/109501 (4 worldwide citation)

(EN) A piezoelectric element inspection method includes: a first inspection signal application step for applying a first inspection signal Vp(1) having a first predetermined piezoelectric waveform to a piezoelectric element; a first characteristic value measuring step for measuring the electric char ...