Takahashi, Hidetoshi



Faculty of Science and Technology, Department of Mechanical Engineering (Yagami)


Associate Professor

Career 【 Display / hide

  • 2008

    東京大学大学院, 情報理工学系研究科知能機械情報学専攻, 日本学術振興会 特別研究員(DC1)

  • 2011

    The University of Tokyo, Information and Robot Technology Research Initiative, 特任研究員

  • 2013

    東京大学大学院, 情報理工学系研究科知能機械情報学専攻, 特任助教

  • 2015

    東京大学大学院, 情報理工学系研究科知能機械情報学専攻, 助教

  • 2019

    Keio University, 理工学部機械工学科, 専任講師


Research Areas 【 Display / hide

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Mechanics of materials and materials (構造力学)

  • Informatics / Mechanics and mechatronics (運動力学・機械計測)


Books 【 Display / hide

  • マイクロニードルの製造と応用展開

    高橋英俊, 許允禎, CMC出版, 2016.10

    Scope: 回転傾斜露光によるマイクロニードルアレイの作製

  • 昆虫ミメティックス~昆虫の設計に学ぶ~

    下澤楯夫・針山孝彦(監修), NTS出版, 2008

    Scope: “昆虫飛翔研究用の昆虫型羽ばたき機,”

Papers 【 Display / hide

  • Temperature Dependence of the Beating Frequency of hiPSC-CMs Using a MEMS Force Sensor

    R Ikegami, T Tsukagoshi, K Matsudaira, KH Shoji, H Takahashi, ...

    Sensors 23 (7), 3370 23 ( 7 )  2023.04

  • Open planar acoustic notch filter using a film-integrated Helmholtz resonator array

    F Mizukoshi, H Takahashi

    Japanese Journal of Applied Physics 62 (3), 034002 (Japanese Journal of Applied Physics)  62 ( 3 )  2023.03

    ISSN  0021-4922

     View Summary

    Acoustic filters are used to transmit or attenuate noise in a specific frequency band. However, previous acoustic filters consisting of rigid structures generally required a large housing of a size equivalent to the wavelength, limiting their downsizing. This study presents an open planar acoustic notch filter using a film-integrated Helmholtz resonator (HR) array. A film divides the HR chamber and resonates with the HR. The film-integrated HR array filter achieved smaller housing dimensions than a no-film HR array filter with the same notch frequency. The transmittance of the film-integrated HR array was theoretically calculated using the transfer matrix method. The calculated spectra were very similar to the simulation results. The notch frequency of the film-integrated HR array filter was 4.04, 0.74 kHz lower than a no-film HR array filter. The design and analysis of the acoustic filter presented should motivate further development of advanced acoustic filters.

  • Sensitivity characteristics of a waterproof airflow sensor based on a MEMS piezoresistive cantilever and nanohole array

    T Hirayama, Y Kazoe, H Takahashi

    Japanese Journal of Applied Physics 62 (2), 026503 (Japanese Journal of Applied Physics)  62 ( 2 )  2023.02

    ISSN  0021-4922

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    This paper presents the sensitivity characteristics of a microelectromechanical systems (MEMS) piezoresistive cantilever and nanohole array used in a waterproof airflow sensor. Previously, a Pitot tube-type waterproof airflow sensor was developed for seabird biologging. Built-in MEMS piezoresistive cantilevers are used as the differential pressure sensing elements. The waterproof function is achieved using nanohole arrays via Laplace pressure. However, the mechanism underlying sensitivity reduction when nanohole arrays are attached is unclear. Here, we experimentally and theoretically verified that the specific constant, which determines the airflow rate through the cantilever and nanohole array, affects sensitivity reduction. An airflow sensor with a small sensitivity reduction was achieved based on the calculated results using appropriate cantilever and nanohole arrays. We demonstrated that the proposed method for estimating sensitivity reduction is useful for designing waterproof airflow sensors using cantilever-type differential pressure sensor elements.

  • Spiral Spring-Supported Force Plate with an External Eddy Current Displacement Sensor

    Y Kawasaki, H Takahashi

    Actuators 12 (1), 16 (Actuators)  12 ( 1 )  2023.01

     View Summary

    This study proposes a force plate with a planar spring and an eddy current displacement sensor to measure the ground reaction force (GRF) of a small insect and reveal its motion characteristics. The proposed force plate comprises a circular aluminum plate, four aluminum springs symmetrically connected to the plate, and an eddy current displacement sensor under the plate. The diameter and thickness of the fabricated plate were 8 and 0.1 mm, respectively. The spring width was 0.4 mm. When a force is applied to the plate, the plate moves vertically downward. Then, an eddy current displacement sensor detects the plate displacement without contact. The applied force can be measured using Hooke’s law. The proposed force plate has the advantages of ease of fabrication and cost-effectiveness. The central displacement variation and resonant frequency of the designed springs were evaluated by simulation. Then, we calibrated the fabricated force plate to obtain the sensitivity variation and resonant frequency. The experimental results suggest that the proposed force plate can effectively measure the GRF of a small insect.

  • Highly Sensitive Low-Frequency-Detectable Acoustic Sensor Using a Piezoresistive Cantilever for Health Monitoring Applications

    Y Okamoto, TV Nguyen, H Takahashi, Y Takei, H Okada, M Ichiki


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Papers, etc., Registered in KOARA 【 Display / hide

Reviews, Commentaries, etc. 【 Display / hide

  • Experimental study of the aerodynamic interaction between the forewing and hindwing of a beetle-type ornithopter

    Hidetoshi Takahashi, Kosuke Abe, Tomoyuki Takahata, Isao Shimoyama

    Aerospace (MDPI)  5 ( 3 )  2018.09

     View Summary

    © 2018 by the authors. Beetles have attracted attention from researchers due to their unique combination of a passively flapping forewing and an actively flapping hindwing during flight. Because the wing loads of beetles are larger than the wing loads of other insects, the mechanism of beetle flight is potentially useful for modeling a small aircraft with a large weight. In this paper, we present a beetle-type ornithopter in which the wings are geometrically and kinematically modeled after an actual beetle. Furthermore, the forewing is designed to be changeable between no-wing, flapping-wing, or fixed-wing configurations. Micro-electro-mechanical systems (MEMS) differential pressure sensors were attached to both the forewing and the hindwing to evaluate the aerodynamic performance during flight. Whether the forewing is configured as a flapping wing or a fixed wing, it generated constant positive differential pressure during forward flight, whereas the differential pressure on the hindwing varied with the flapping motion during forward flight. The experimental results suggest that beetles utilize the forewing for effective vertical force enhancement.

  • Development of a light source with a uniform intensity reinforced by a checkerboard half-mirror positioned within inverse L-shaped UV-LED arrays

    Hidetoshi Takahashi, Isao Shimoyama, Yun Jung Heo

    Applied Physics Express (Japan Society of Applied Physics)  11 ( 6 )  2018.06

    ISSN  1882-0786

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    This paper presents a simple, low-cost, long-lasting UV-LED-based light source with uniform light intensity using a checkerboard half-mirror positioned within inverse L-shaped UV-LED arrays. The light rays from the top UV-LED array passed through the transparent portions of the checkerboard half-mirror, while the light rays from the side UV-LED array were reflected on the remaining opaque portions at right angles. Thus, uniform light intensity was achieved on the bottom area. Using the developed UV-LED light source, we fabricated microstructures with uniform shapes on a large area, thereby showing feasible applications for MEMS fabrication.

  • スパイラル管路とピエゾ抵抗型カンチレバー素子による角加速度センサ—Angular acceleration sensor with spiral gas channel and piezoresistive cantilever

    高橋 英俊, 菅 哲朗, 中井 亮仁, 髙畑 智之, 下山 勲

    「センサ・マイクロマシンと応用システム」シンポジウム論文集 電気学会センサ・マイクロマシン部門 [編] 35   3p 2018

  • マイクロピラーアレイを用いた高感度MEMS気流せん断応力センサ—High sensitive MEMS airflow shear stress sensor using a micro-pillar array

    高橋 英俊, 風間 涼平, グェン タンヴィン, 髙畑 智之, 松本 潔, 下山 勲

    「センサ・マイクロマシンと応用システム」シンポジウム論文集 電気学会センサ・マイクロマシン部門 [編] 33   1 - 4 2016.10

  • Scalable fabrication of microneedle arrays via spatially controlled UV exposure

    Hidetoshi Takahashi, Yun Jung Heo, Nobuchika Arakawa, Tesuo Kan, Kiyoshi Matsumoto, Ryuji Kawano, Isao Shimoyama


    ISSN  2055-7434

     View Summary

    This paper describes a theoretical estimation of the geometry of negative epoxy-resist microneedles prepared via inclined/rotated ultraviolet (UV) lithography based on spatially controlled UV exposure doses. In comparison with other methods based on UV lithography, the present method can create microneedle structures with high scalability. When negative photoresist is exposed to inclined/rotated UV through circular mask patterns, a three-dimensional, needle-shaped distribution of the exposure dose forms in the irradiated region. Controlling the inclination angles and the exposure dose modifies the photo-polymerized portion of the photoresist, thus allowing the variation of the heights and contours of microneedles formed by using the same mask patterns. In an experimental study, the dimensions of the fabricated needles agreed well with the theoretical predictions for varying inclination angles and exposure doses. These results demonstrate that our theoretical approach can provide a simple route for fabricating microneedles with on-demand geometry. The fabricated microneedles can be used as solid microneedles or as a mold master for dissolving microneedles, thus simplifying the microneedle fabrication process. We envision that this method can improve fabrication accuracy and reduce fabrication cost and time, thereby facilitating the practical applications of microneedle-based drug delivery technology.

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Research Projects of Competitive Funds, etc. 【 Display / hide

  • Leading international biologging research to elucidate the impacts of anthropogenic stressors on marine ecosystems


    Grants-in-Aid for Scientific Research, Fund for the Promotion of Joint International Research (International Leading Research ), No Setting

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  • New flexible electronics technology platform for wellbeing society


    Grants-in-Aid for Scientific Research, Grant-in-Aid for Challenging Research (Pioneering), No Setting

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    本研究では、普及の決め手に欠けるフレキシブルエレクトロニクスの現状を打破する「次世代のフレキシブルエレクトロニクスの基盤技術」の確立を目的として、3つの研究項目、A:「極薄Si半導体素子とフレキシブルエレクトロニクスの融合」、B:「レーザー誘起グラフェンによる金属を用いない配線・センサ・アクチュエータ形成技術」、C:「Auxetic Structureによる伸張性と強度を両立したシート型フレキシブルデバイスの実現」を設定し、次世代のフレキシブルエレクトロニクスのための基盤技術の創成に取り組む。

  • Effect of social interaction to optimal foraging behavior of central place foragers


    Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (A), No Setting

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  • Kirigami metamaterials for tunable optical properties


    Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), No Setting

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  • 聴神経腫瘍の聴力予後改善に向けた新規聴覚誘発電位測定法およびアルゴリズムの開発


    Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (C), No Setting

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Awards 【 Display / hide

  • The 31s IEEE International Conference on Micro Electro Mechanical Systems, Outstanding Student Paper Award

    松平謙英, 高橋英俊, 平山佳代子, グェンタンヴィン, 塚越拓哉, 下山勲, 2018.01, IEEE MEMS2018

  • 第34回「センサ・マイクロマシンと応用システム」シンポジウムポスター賞

    磯崎瑛宏, 菅哲朗, 高橋英俊, 松本潔, 下山勲, 2017.11, 電気学会センサ・マイクロマシン部門, 自立構造型可変メタマテリアル

  • Outstanding Paper Award

    Thanh-Vinh Nguyen, Hidetoshi Takahashi, Isao Shimoyama, 2017.06, The 19th International Conference on Solid-State Sensors, Actuators and Microsystems, MEMS-based pressure sensor with a superoleophobic membrane for measuring droplet vibration

  • 第29回安藤博記念学術奨励賞

    高橋英俊, 2016.06, 安藤研究所, MEMSピエゾ抵抗型力センサの研究開発

  • Outstanding Student Paper Award Finalist

    Ryu Furuya, Hidetoshi Takahashi, Nguyen Thanh-Vinh, Tomoyuki Takahata, Kiyoshi Matsumoto, Isao Shimoyama, 2016.01, IEEE MEMS2016, Measurement of jumping force of a fruit fly using a mesa structured force plate

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Courses Taught 【 Display / hide











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