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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 39  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
US 2020-11-05
13:00
Aichi   Effect of negative ion bombardment increased in low-pressure sputtering deposition on crystallinity and piezoelectric property of ScAlN thin film
Takumi Tominaga, Shinji Takayanagi (Doshisha Univ.), Takahiko Yanagitani (Waseda Univ.)
 [more]
US 2020-11-05
15:45
Aichi   Resonant frequency shift and lattice strain of AlN and ScAlN SMR during DC bias voltage application caused by nonlinear effect
Takumi Saotome, Takahiko Yanagitani (Waseda Univ.)
 [more]
US 2020-09-28
14:25
Online Web Meeting c-Axis tilted ScAlN film piezoelectric transformer in the UHF range
Sarina Kinoshita (Waseda Univ./ZAIKEN), Takahiko Yanagitani (Waseda Univ./ZAIKEN/JST CREST) US2020-35
(To be available after the conference date) [more] US2020-35
pp.45-50
US 2020-09-28
14:50
Online Web Meeting Effect of negative ions generated from ScAl sputtering targets on kt2 and crystal orientation of ScAlN thin films
Rui Kihara (Waseda Univ.), Shinji Takayanagi (Doshisha Univ.), Takahiko Yanagitani (Waseda Univ.) US2020-36
(To be available after the conference date) [more] US2020-36
pp.51-56
US 2019-07-29
14:20
Hokkaido   Liquid viscoelasticity characterization by the complex reflection coefficient using quasi-shear mode c-axis tilted ScAlN thin film transducers
Ryosuke Amano, Yui Yamakawa (Waseda Univ./ZAIKEN), Takahiko Yanagitani (Waseda Univ./ZAIKEN/JST-PREST) US2019-31
In the complex reflection measurement of liquid/solid interface, the low angle incidence of shear horizontal (SH) wave t... [more] US2019-31
pp.19-23
US 2019-07-29
15:45
Hokkaido   Fabrication of thickness-shear mode resonators with ZnO film and their frequency characteristics of liquid loading
Masaya Miyata, Shinji Takayanagi, Mami Matsukawa (Doshisha Univ.), Takahiko Yanagitani (Waseda Univ.) US2019-34
Thickness-shear mode resonators are applied to sensors to measure liquid viscosity and antigen-antibody reaction, becaus... [more] US2019-34
pp.33-37
US 2018-11-02
15:20
Aichi   Deposition of c-axis parallel oriented ZnO film on entire surface of silica glass pipe
Yuta Takamura (Doshisha Univ.), Shinji Takayanagi (Nagoya Inst. Tech.), Mami Matsukawa (Doshisha Univ.), Takahiko Yanagitani (Waseda Univ.) US2018-68
SH type SAW sensor can measure the viscosity, conductivity and permittivity of a liquid because it propagate to liquid /... [more] US2018-68
pp.25-30
US 2018-10-04
10:50
Miyagi   Frequency switchable resonators in the GHz range based on polarity inverted PZT/PTO epitaxial stacks
Takahiro Shimidzu, Takeshi Mori, Takahiko Yanagitani (Waseda Univ.) US2018-51
 [more] US2018-51
pp.13-18
US 2018-10-04
11:15
Miyagi   Comparison between new kt2 extraction method and conventional methods for film/substrate structure -- Resonant frequency ratio method, conversion loss method, resonant spectrum method, and resonance antiresonance method --
Makoto Totsuka, Takahiko Yanagitani (Waseda Univ.) US2018-52
The electromechanical coupling coefficient kt2 is an important parameter for determining the performances of the RF piez... [more] US2018-52
pp.19-24
US 2018-10-04
12:40
Miyagi   Evaluation of fluid viscosity in the ultrahigh frequency range using quasi-shear mode c-axis tilted ScAlN thin film resonators
Yui Yamakawa, Takumi Soutome, Rei Karasawa, Takahiko Yanagitani (Waseda Univ.) US2018-53
In the fluid viscosity evaluation based on the QCM (Quartz Crystal Microbalance), the quartz crystal plate is required t... [more] US2018-53
pp.25-29
US 2018-10-04
13:30
Miyagi   The influence of negative ions generation on various ScAl alloy sputtering targets to ScAlN film properties -- Comparison of EB-melted, arc-melted and hot press sintered ScAl alloy targets --
Rei Karasawa (Waseda Univ.), Shinji Takayanagi (Nagoya Inst. Tech.), Yuka Endo (Waseda Univ.), Makoto Imasaka, Keisuke Morisaka, Yu Suzuki (Furuya Metal Co., Ltd.), Takahiko Yanagitani (Waseda Univ.) US2018-55
 [more] US2018-55
pp.37-42
US 2018-05-21
15:45
Tokyo   Polarity inverted cubic PMN-PT/ tetragonal PZT epitaxial film resonators for frequency switchable filters
Takahiro Shimidzu, Takahiko Yanagitani (Waseda Univ.) US2018-16
In recent years, the number of bandpass filters in smartphone has been increasing because of international roaming syste... [more] US2018-16
pp.29-34
US 2017-07-27
15:40
Okayama   Simultaneous viscosity evaluation in the MHz to GHz range by using shear mode HBAR consisting of ScAlN thin film/low TCF substrate
Yui Yamakawa, Ko-hei Sano, Rei Karasawa (Waseda Univ.), Takahiko Yanagitani (Waseda Univ./JST) US2017-42
In order to study relaxation characteristics of viscoelasticity of the liquid, a wide frequency sweep in the range of MH... [more] US2017-42
pp.61-66
US 2017-07-27
16:40
Okayama   Rapid measurement of longitudinal and shear wave velocities by Brillouin scattering from coherent induced phonons
Masahiko Kawabe (Doshisha Univ.), Takahiko Yanagitani (Waseda Univ.), Shibagaki Yoshiaki (Doshisha Univ.), Shinji Takayanagi (Nagoya Inst. of Tech.), Masashi Suzuki (Waseda Univ.), Mami Matsukawa (Doshisha Univ.) US2017-44
Brillouin scattering method enables to evaluate thin films or transparent materials in the range from several hundred MH... [more] US2017-44
pp.71-74
US 2016-04-18
11:00
Tokyo Nishi-Waseda Campus, Waseda University Polarity inverted ScAlN/ZnO piezoelectric film for 2nd mode ultrasonic transducer
Takeshi Mori (Nagoya Inst. of Tech./Waseda Univ.), Masashi Suzuki, Takahiko Yanagitani (Waseda Univ.) US2016-1
 [more] US2016-1
pp.1-6
US 2016-04-18
11:25
Tokyo Nishi-Waseda Campus, Waseda University c-axis parallel ZnO film for GHz pure shear wave ultrasonic transducer
Takeshi Mori (Nagoya Inst. of Tech./Waseda Univ.), Masashi Suzuki, Takahiko Yanagitani (Waseda Univ.) US2016-2
 [more] US2016-2
pp.7-12
US 2015-10-09
15:20
Ishikawa Kanazawa Institute of Technology Quantitative measurement of polarity-inverted piezoelectric layer thickness using scanning nonlinear dielectric microscopy
Koshiro Terada, Hiroaki Nishikawa, Yohei Tanaka, Hiroyuki Odagawa (NIT, Kumamoto College), Takahiko Yanagitani (Waseda Univ.), Yasuo Cho (Tohoku Univ.) US2015-62
 [more] US2015-62
pp.23-26
US 2015-10-09
15:50
Ishikawa Kanazawa Institute of Technology Brillouin scattering measurement of coherent phonons induced by ScAlN piezoelectric thin film
Eunhye Cho, Masahiko Kawabe, Shinji Takayanagi (Doshisha Univ.), Masashi Suzuki, Takahiko Yanagitani (Waseda Univ.), Mami Matsukawa (Doshisha Univ.) US2015-63
Brillouin scattering spectroscopy allows to investigate a shift frequency of the incident light in GHz range, which occu... [more] US2015-63
pp.27-30
US 2015-09-03
14:30
Hokkaido   Investigation of multiple shear wave roundtrips liquid sensor by c-axis parallel oriented ZnO film/silica glass pipe structure
Shoko Hiyama (Doshisha Univ.), Takahiko Yanagitani (Waseda Univ.), Shinji Takayanagi, Mami Matsukawa (Doshisha Univ.) US2015-49
Shear horizontal (SH) waves with in-plane displacement can propagate at liquid/solid interface with the small energy lea... [more] US2015-49
pp.19-24
US 2015-09-03
15:20
Hokkaido   Growth of c-axis parallel oriented ZnO film by RF magnetron sputtering at low gas pressure and its application in SAW and Lamb wave devices
Shinji Takayanagi (Doshisha Univ.), Takahiko Yanagitani (Waseda Univ.), Jean-Claude Gerbedoen, Abdelkrim Talbi (IEMN), Mami Matsukawa (Doshisha Univ.), Philippe Pernod (IEMN) US2015-50
ZnO piezoelectric films are widely used for acoustic wave devices. In most cases the (0001) oriented ZnO films were used... [more] US2015-50
pp.25-30
 Results 1 - 20 of 39  /  [Next]  
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