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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| US | 2023-11-27 15:45 |
Shizuoka | Shizuoka University | Measuring mechanical quality factor (Q-factor) using a completely non-contact method Masatoshi Tsuchida, Takeshi Morita (The Univ. of Tokyo)  US2023-53 |
[more] | US2023-53 pp.55-60 |
| US | 2023-06-16 13:25 |
Kyoto | Muromachi Campus, Doshisha University | Effect of Piezoelectric properties and prestress for Langevin transducers in High-power driving Kota Yokoyama (The Univ. of Tokyo/Niterra), Takashi Kasashima (Niterra), Takeshi Morita (The Univ. of Tokyo) US2023-10 |
[more] | US2023-10 pp.5-10 |
| US | 2023-05-18 14:35 |
Tokyo | Surugadai Campus, Nihon University | Structural optimization of the first parabolic reflector of DPLUS Shoki Ieiri, KyoHei Yamada, Chen Kang, Takeshi Morita (The Univ. of Tokyo) US2023-6 |
A high-frequency ultrasonic transducer with focusing mechanism using two parabolic surfaces (DPLUS) is structurally opti... [more] | US2023-6 pp.28-32 |
| US | 2022-05-19 14:05 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Transfer matrix simulation of Langevin type transducer driving including the nonlinear effect Kota Yokoyama (The Univ. of Tokyo/NGK Spark Plug), Takashi Kamashima (NGK Spark Plug), Susumu Miyake, Takeshi Morita (The Univ. of Tokyo) US2022-7 |
Bolt-clamped Langevin transducer are widely used for high-power applications; however, saturation of vibration velocity ... [more] | US2022-7 pp.26-31 |
| US | 2022-05-19 14:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | Focusing mechanism of Tube-Type Double-Parabolic-Reflectors Ultrasonic Transducer Kyohei Yamada, Chen Kang (The Univ. of Tokyo), Takasuke Irie (Microsonic), Takashi Iijima (AIST), Susumu Miyake, Takeshi Morita (The Univ. of Tokyo) US2022-8 |
(To be available after the conference date) [more] | US2022-8 pp.32-37 |
| US | 2021-06-18 13:25 |
Online | Online | Fundamental Study of Tube-Type Double-Parabolic-Reflectors Ultrasonic Transducer Kyohei Yamada, Kang Chen (The Univ. of Tokyo), Takasuke Irie (Microsonic), Takashi Iijima (Tokyo Univ. of Science), Susumu Miyake, Takeshi Morita (The Univ. of Tokyo) US2021-9 |
(To be available after the conference date) [more] | US2021-9 pp.6-11 |
| US | 2021-05-17 16:20 |
Online | Online | Reveal the vibration characteristics of DPLUS: the selection criteria of piezoelectric materials Chen Kang (Univ. of Tokyo), Irie Takasuke (Microsonic), Iijima Takashi (Tokyo Univ. of Science), Kasashima Takashi (NGK), Yokoyama Kota, Susumu Miyake, Morita Takeshi (Univ. of Tokyo) US2021-6 |
[more] | US2021-6 pp.24-29 |
| US | 2020-05-18 13:30 |
Online | Online | Propagation characteristics of high-frequency ultrasound in metallic glass waveguide Kohei Shinoda, Kang Chen (The Univ. of Tokyo), Takasuke Irie (Microsonic), Takashi Iijima (AIST), Takeshi Morita (The Univ. of Tokyo) US2020-8 |
In developing an ultrasonic microscope using a thin waveguide, quartz glass has been used as a waveguide material. Howev... [more] | US2020-8 pp.1-5 |
| US | 2019-08-28 16:35 |
Tokyo | DPLUS Based High-Frequency Ultrasonic Tweezers for Micro/Nano Manipulations Liu Qingyang, Chen Kang (The Univ. of Tokyo), Hu Junhui (NUAA), Morita Takeshi (The Univ. of Tokyo) US2019-45 |
[more] | US2019-45 pp.45-48 |
|
| US | 2018-12-10 13:55 |
Tokyo | Acoustic focusing to the waveguides utilizing double parabolic reflectors Kang Chen (The Univ. of Tokyo), Takasuke Irie (Microsonic Co), Takashi Iijima (AIST), Takeshi Morita (The Univ. of Tokyo) US2018-71 |
Acoustic waveguides are utilized for guiding sound waves and have been universally exploited for low-loss ultrasound tra... [more] | US2018-71 pp.5-10 |
|
| US | 2018-02-19 16:00 |
Tokyo | Evaluation method of piezoelectric materials for high-power ultrasonic applications Susumu Miyake (UT), Takashi Kasashima, Masato Yamazaki, Yasuyuki Okimura (NTK), Hajime Nagata (TUS), Takeshi Morita (UT) US2017-118 |
High power properties of piezoelectric transducer were evaluated considering complex nonlinear elastic constants. The pi... [more] | US2017-118 pp.37-42 |
|
| US, EA (Joint) |
2018-01-23 13:00 |
Osaka | [Poster Presentation]
Dynamic resonant frequency control range expansion of ultrasonic transducer Hiroki Yokozawa (Tokyo Univ.), Jens Twiefel, Michael Weinstein (Univ. Hannover), Takeshi Morita (Tokyo Univ.) US2017-93 |
[more] | US2017-93 pp.59-62 |
|
| US | 2017-12-11 16:45 |
Tokyo | Modeling of Langevin transducer with transfer matrix of piezoelectric 33-mode introducing nonlinear elastic coefficients Naruhiro Iwama, Susumu Miyake, Takeshi Morita (The Univ. of Tokyo) US2017-81 |
Bolt-clamped Langevin transducers are widely used for high-power applications such as washing machines and wire bonding ... [more] | US2017-81 pp.37-40 |
|
| US | 2017-06-27 16:55 |
Tokyo | Fundamental study on self-sensing piezoelectric manipulator Kenta Suzuki (Univ. of Tokyo), Sze Keat Chee (Mechano Transformer), Takeshi Morita (Univ. of Tokyo) US2017-28 |
(To be available after the conference date) [more] | US2017-28 pp.43-46 |
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| US | 2016-12-12 15:25 |
Tokyo | Nonlinear 2nd term in the piezoelectric longitudinal vibration Ryohei, Takeshi Morita (Tokyo Univ.) US2016-68 |
[more] | US2016-68 pp.41-46 |
|
| US | 2016-12-12 15:50 |
Tokyo | Design of a resonant frequency ratio-controllable transducer Hiroki Yokozawa (Tokyo Univ.), Jens Twiefel, Michael Weinstein (Hannover Univ.), Takeshi Morita (Tokyo Univ.) US2016-69 |
[more] | US2016-69 pp.47-51 |
|
| EMD, LQE, OPE, CPM, R | 2014-08-21 15:40 |
Hokkaido | Otaru Economy Center | [Invited Lecture]
Development of 9xx nm high power laser diode bars Nobuto Kageyama, Takenori Morita, Kousuke Torii, Takehito Nagakura, Motoki Takauji, Junya Maeda, Harumasa Yoshida (Hamamatsu photonics) R2014-31 EMD2014-36 CPM2014-51 OPE2014-61 LQE2014-35 |
We report recently developed 9xx nm high power laser diode bars for pumping solid-state lasers, fiber lasers and direct ... [more] | R2014-31 EMD2014-36 CPM2014-51 OPE2014-61 LQE2014-35 pp.45-49 |
| EMD, LQE, OPE, CPM, R | 2014-08-22 09:35 |
Hokkaido | Otaru Economy Center | [Invited Talk]
Current status and future prospect of ultraviolet laser diodes Harumasa Yoshida, Yuta Aoki, Masakazu Kuwabara, Yoji Yamashita, Kousuke Torii, Atsushi Sugiyama, Takenori Morita (Hamamatsu Photonics) R2014-37 EMD2014-42 CPM2014-57 OPE2014-67 LQE2014-41 |
We will talk about the current status and the future prospect of ultraviolet laser diodes. The electrically driven laser... [more] | R2014-37 EMD2014-42 CPM2014-57 OPE2014-67 LQE2014-41 pp.71-75 |
| OPE, LQE, CPM, EMD, R | 2013-08-29 16:30 |
Hokkaido | sun-refre Hakodate | [Invited Lecture]
Characteristics of Window-Structured 915 nm High Power Laser Diodes Harumasa Yoshida, Takenori Morita, Takehito Nagakura, Kousuke Torii, Motoki Takauji, Junya Maeda (Hamamatsu Photonics) R2013-42 EMD2013-48 CPM2013-67 OPE2013-71 LQE2013-41 |
We report the high-power 915-nm broad-area laser diodes with a window structure formed by the impurity-free vacancy diso... [more] | R2013-42 EMD2013-48 CPM2013-67 OPE2013-71 LQE2013-41 pp.71-75 |
| US | 2011-12-22 15:50 |
Kanagawa | Suzukakedai Campus, Tokyo Institute of Technology | An ultrasonic pump with a Langevin transducer combining high-order mode Munesuke Suzuki, Takuma Nishimura, Hiroshi Hosaka, Takeshi Morita (The Univ. of Tokyo) US2011-83 |
This paper proposes an ultrasonic pump using a Langevin transducer designed for combining resonant vibration modes. In t... [more] | US2011-83 pp.37-40 |
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