Mikiya Yamaguchi

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Amplitude/phase temperature compensation attenuators have been developed. The circuits are based on new variable-<i>Q</i> field-effect transistor resonators. By employing the configuration, the dynamic range of the attenuation and the phase-shift can be flexibly determined. To verify this methodology, we have fabricated a low phase-shift temperature(More)
We fabricate the bismut titanate (Bi<sub>4</sub>Ti<sub>3</sub>O<sub>12</sub>) thin films used an alcohol related solutions which dissolved Bi(OtC<sub>5</sub>H<sub>11</sub>)<sub>3</sub> and Ti[OCH(CH<sub>3</sub>)<sub>2</sub>]<sub>4</sub> in C<sub>2</sub>H<sub>5</sub>OC<sub>2</sub>H<sub>4</sub>OH for micro liquid delivery systems such as ink-jet printing(More)
Ariosoma-type leptocephali of the congrid subfamily Bathymyrinae are typically present in tropical and subtropical regions where they reach large sizes and are often abundant compared to other taxa. Different morphological species types of these larvae have been documented in the Indo-Pacific region, but few have been matched with their adult species, and(More)
The preparation of piezoelectric AIN thin films of high quality onto diamond substrates using DC-TFTS method and its application to SHF SAW devices are discussed. FWHM (=3.4deg) of the rocking curve of XRD suggested that the c-axes of AIN films may well align perpendicular to the film surface. Transversal filters based on Sezawa wave were fabricated to(More)
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