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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| EA, US (Joint) |
2023-12-22 15:20 |
Fukuoka | [Poster Presentation]
SMR-type piezoelectric transformer using shear mode c-axis zigzag ScAlN multilayer Kazutaka Siraiwa (Waseda Univ.), Takahiko Yanagitani (Waseda univ.)  US2023-64 |
RF signal can be converted to DC signal using an antenna and diode (rectenna). When distance of wireless transfer is lon... [more] | US2023-64 pp.47-52 |
|
| EA, US (Joint) |
2023-12-22 15:20 |
Fukuoka | [Poster Presentation]
Large area growth of c-axis tilted Sc0.4Al0.6N thin films using planar sputtering with rectangular cathode Naoki Ishii, Yhoho Shimano, Takahiko Yanagitani (Waseda Univ.) US2023-65 |
c-axis normal ScAlN thin films with Sc concentration exceeding 40% possess high thickness extensional mode electromechan... [more] | US2023-65 pp.53-58 |
|
| US | 2023-11-27 16:10 |
Shizuoka | Shizuoka University | 30-layer polarization inversion HBAR for acoustic separation of piezoelectric layer and substrate Kazutaka Shiraiwa, Takahiko Yanagitani (Waseda univ) US2023-54 |
There are two types of BAW resonators, FBAR (film bulk acoustic resonator: free standing structure) and SMR (Solidly mou... [more] | US2023-54 pp.61-66 |
| EA, US (Joint) |
2022-12-22 16:50 |
Hiroshima | Satellite Campus Hiroshima | [Poster Presentation]
A method for evaluating acoustic Bragg reflector by GHz pulse echo technique with SiO2 delay line Keita Kondo, Naoki Ishii, Motoshi Suzuki (Waseda Univ.), Takahiko Yanagitani (Waseda Univ. /JST) US2022-65 |
Experimental data of the sole Bragg reflector is difficult to be measured. This is because the property of a piezoelectr... [more] | US2022-65 pp.80-85 |
| US | 2022-01-25 11:25 |
Online | Online | Transversal type BAW filter based on c-axis zig-zag polarization inverted ScAlN multilayers Kota Izumi, Takahiko Yanagitani (Waseda Univ.) US2021-59 |
Surface acoustic wave (SAW) transversal type filter is attractive because of their independent control of amplitude and ... [more] | US2021-59 pp.5-10 |
| US | 2020-09-28 14:25 |
Online | Online | 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 |
Battery-less sensors require energy harvesting from the ambient environment. RF-DC conversion with a rectifying antenna ... [more] | US2020-35 pp.45-50 |
| 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 |
|
| CPM, ED, EID, SDM, ICD, MRIS, QIT, SCE, OME, EMD (Joint) [detail] |
2018-03-08 16:40 |
Shizuoka | [Invited Talk]
Tailoring of Crystal Orientation and Surface Flatness for L10-ordered FePt-based Epitaxial Magnetic Thin Film Masaaki Futamoto, Mitsuru Ohtake (Chuo Univ.) EMD2017-78 MR2017-49 SCE2017-49 EID2017-51 ED2017-123 CPM2017-143 SDM2017-123 ICD2017-128 OME2017-72 |
Effects of film formation process condition on L10-ordered FePt film structure are investigated by high-resolution trans... [more] | EMD2017-78 MR2017-49 SCE2017-49 EID2017-51 ED2017-123 CPM2017-143 SDM2017-123 ICD2017-128 OME2017-72 pp.31-36 |
|
| MRIS, ITE-MMS | 2016-06-09 13:25 |
Miyagi | Tohoku Univ. | Compositional dependence of Cr100-xTix texture-inducing layer underlying (002) textured bcc-Cr alloy seed layer for FePt-C based heat-assisted magnetic recording media Seong-Jae Jeon, Shintaro Hinata, Shin Saito (Tohoku Univ.) MR2016-2 |
Cr100-xTix amorphous texture-inducing layers (TIL) were investigated to realize highly (002) oriented L10 FePt-C granula... [more] | MR2016-2 pp.5-9 |
| 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 |
|
| US | 2015-09-03 15:50 |
Hokkaido | Electromechanical coupling coefficients of c-axis parallel oriented ScAlN films grown by ion-beam assisted RF magnetron sputtering Mineki Oka, Shinji Takayanagi (Doshisha Univ.), Takahiko Yanagitani (Waseda Univ.), Mami Matsukawa (Doshisha Univ.) US2015-51 |
Recently, Akiyama et al. found that doping scandium into AlN film increases the number of piezoelectric coefficient d33 ... [more] | US2015-51 pp.31-35 |
|
| US | 2011-09-26 15:50 |
Miyagi | Tohoku Univ. | Electromechanical coupling coefficient of SH-SAW in c-axis parallel oriented ZnO film/non-crystalline substrate structure Yuta Nakahigashi (Doshisha Univ.), Takahiko Yanagitani (Nagoya Inst. Tech.), Mami Matsukawa, Yoshiaki Watanabe (Doshisha Univ.) US2011-50 |
A shear horizontal type surface acoustic wave (SH-SAW) propagates at liquid/solid interface without energy leakage to th... [more] | US2011-50 pp.23-26 |
| US | 2011-09-27 09:25 |
Miyagi | Tohoku Univ. | Shear mode resonators consisting of polarization-inverted c-axis parallel AlN layers Masashi Suzuki, Nobuhiro Suganuma, Takahiko Yanagitani (NIT) US2011-54 |
c-axis parallel polarizaion-inverted multi-layered AlN films were fabricated by ion beam assisted deposition(IBAD). c-ax... [more] | US2011-54 pp.43-48 |
| US | 2010-09-30 10:50 |
Miyagi | Tohoku Univ. | c-axis parallel oriented ZnO film depositions by RF bias sputtering
-- The effect of bias frequency on the orientation -- Shinji Takayanagi (Doshisha Univ.), Takahiko Yanagitani (Nagoya Inst. Tech.), Mami Matsukawa, Yoshiaki Watanabe (Doshisha Univ.) US2010-62 |
ZnO films where the crystallite c-axis is unidirectionally-aligned and parallel to the substrate plane [(11-20) or (10-2... [more] | US2010-62 pp.75-80 |
| US | 2009-09-30 09:00 |
Hokkaido | Noboribetsu Grand Hotel | Multilayer shear mode resonator consisting of c-axis tilted ZnO films. Noki Morisato, Shinji Takayanagi (Doshisha Univ.), Takahiko Yanagitani (Nagoya Inst. of Tech.), Mami Matsukawa, Yoshiaki Watanabe (Doshisha Univ.) US2009-47 |
In a previous study, we have reported c-axis 23° tilted ZnO film for shear wave excitations. We here propose a new multi... [more] | US2009-47 pp.53-58 |
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