Ultrasound × Electromagnetics
A timeless new platform for medical and industrial measurement
ASEM tomography
ASEM Technology
A new way to detect hidden deterioration and change
ASEM (Acoustic Stimulated Electromagnetic Method) visualizes internal electric and magnetic dipoles induced by ultrasound, revealing their unique properties in a new way.Developed from fundamental research at Tokyo University of Agriculture and Technology, this method makes it possible to detect material “deterioration” and “changes” that were previously difficult to measure.
Using a measurement platform built on the ASEM method, we’re working to extend healthy lifespans through advanced medical and healthcare services, while also improving non-destructive testing in industry.
Discover a whole new way to use ultrasound.
What’s new
Launch of Collaborative Research with Juntendo University and Tokyo University of Agriculture and TechnologyASEMtech Inc. has entered into a joint research agreement with Juntendo University and Tokyo University of Agriculture and Technology to develop a non-invasive method for measuring the mechanical properties of human muscle and tendon tissues using the ASEM technique. Through this collaboration, we aim to integrate advanced sensing technologies with academic expertise to establish new diagnostic and evaluation methods in the fields of medicine, sports, and rehabilitation. [...]
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Launch of Collaborative Research with Osaka University and Tokyo University of Agriculture and TechnologyASEMtech Inc. has entered into a joint research agreement with Osaka University and Tokyo University of Agriculture and Technology to develop a non-invasive method for measuring the mechanical properties of human muscle and tendon tissues using the ASEM technique. Through this collaboration, we aim to integrate advanced sensing technologies with academic expertise to establish new diagnostic and evaluation methods in the fields of medicine, sports, and rehabilitation. [...]
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The clinical research protocol has been approved at Faculty of Medicine, Juntendo University.ASEMtech Inc. has obtained approval from the Ethics Review Committee of Faculty of Medicine, Juntendo University for a clinical research protocol on non-invasive diagnostic technology, conducted jointly with Juntendo University and Tokyo University of Agriculture and Technology. This study aims to establish public trust and demonstrate clinical usefulness. [...]
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The clinical research protocol has been approved at Osaka University Hospital, Faculty of MedicineASEMtech Inc. has obtained approval from the Ethics Review Committee of Osaka University Hospital, Faculty of Medicine, for a clinical research protocol on non-invasive diagnostic technology, conducted jointly with Osaka University and Tokyo University of Agriculture and Technology. This study aims to establish public trust and demonstrate clinical usefulness. [...]
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Invited Lecture in 2025 ASA/JSA Joint Meeting (Hawaii, USA)Our CEO, Prof. Dr. Ikushima, delivered an invited lecture at the 2025 ASA/JSA Joint Meeting (Dec. 1-5, Hawaii, USA), co-hosted by the Acoustical Society of America and the Acoustical Society of Japan.
Title: Advancing Electromagnetic Imaging through ASEM Technology [...]
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ASEM Implementation Case Study — Denshijiki Industry Co., Ltd.Denshijiki Industry Co., Ltd. (EMIC – Electronic Magnetic Industry), a leading company in the field of magnetic applications, has adopted ASEMtech’s industrial non-destructive inspection system, ASEMindtec, for the evaluation of electromagnetic steel sheets.
By leveraging the unique capabilities of ASEM technology to visualize the spatial distribution of local hysteresis loops, the company is exploring quantitative assessments of magnetic property changes caused by processing and heat treatment.
Through the integration of EMIC’s advanced expertise in non-destructive testing and magnetic measurement with our sensing technology, we aim to deliver new value across a wide range of industries, including automotive, railway, home appliances, and steel manufacturing. [...]
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ASEM Implementation Case Study — IHI Inspection & Instrumentation Co., Ltd.As part of a pilot initiative to evaluate the condition of bridge structures,IHI Inspection & Instrumentation Co., Ltd. (IIC) has introduced an industrial non-destructive inspection system (ASEMindtec).
The system is based on ASEM technology, which enables visualization of the internal electromagnetic state of steel without removing surface coatings. This allows for the detection of deterioration and stress changes beneath coatings—challenges that conventional non-destructive methods have struggled to address—thus contributing to more advanced infrastructure maintenance.
IIC is currently conducting on-site validation trials to assess the effectiveness of ASEM-based inspection under real-world conditions. [...]
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Oral presentation in The Japan Society of Ultrasonics in MedicinTitle: Anisotropy of Acoustically Induced Polarization in Human Lower Limb Bones and Tendons
Significant polarization anisotropy was observed in the Achilles tendon, with polarization occurring along the direction of collagen fiber alignment.In the cortical bone of the tibia, anisotropic polarization was detected along the bone axis in the diaphyseal region, whereas near the epiphyseal region, polarization was also observed perpendicular to the bone axis.Furthermore, polarization signals were detected from the cancellous bone of the calcaneus, suggesting that the ASEM method may enable evaluation of internal bone structures. [...]
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We have been granted the license as a Second-class Marketing Authorization Holder (MAH) for medical devices.On July 8, 2025, we were granted a license for second-class marketing and manufacturing of medical devices by the Tokyo Metropolitan Government (License No. 13B2X10636). [...]
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Raised ¥250 million in Series A roundRaised 250 million yen through a third-party allotment of new shares to Innovations and Future Creation Inc.(MIRAI SOUZOU), BP Capital Co., Ltd. LEO Electronics Co., LTD. and Quantum Leaps Ventures Corp. [...]
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Corporate Logo RenewalWe are pleased to announce the establishment of a new company logo to further strengthen the image of ASEM technology’s innovation and growth, as well as our reputation as a trusted manufacturer. This logo represents our commitment to cutting-edge technology and quality, embodying our core values of “Challenge,” “Evolution,” and “Trust.” Together with our slogan, which aims to establish a universally utilized measurement platform across generations, we strive to deliver even greater value and continue to meet the expectations of our customers. [...]
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Featured in “Ultrasonic Techno” MagazineAn article titled “Imaging of Acoustic-Evoked Electromagnetic (ASEM) Responses in the Body Using an Ultrasound Array Probe” was published in the March–April 2025 issue of Ultrasonic Techno. [...]
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Selected for the 2024 Research and Development Grant Project of the Mitsubishi UFJ Foundation for Development of TechnologyWe have been selected for the FY2024 1st Mitsubishi UFJ Technology Development Foundation Research and Development Grant Project. [...]
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Oral presentation in IEEE UFFC-JS 2024 (Taiwan)Oral presentation in IEEE UFFC-JS 2024 (Taiwan), Tomographic imaging of acoustically induced electric polarization in human body. [...]
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Oral presentation in The Japan Society of Ultrasonics in MedicinOral presentation in The Japan Society of Ultrasonics in Medicin, “Tomography of acoustically stimulated electromagnetic response in body” [...]
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Paper Selected and Received Encouragement AwardOur paper on anisotropy of acoustically induced polarization in tendon, muscle, and aortic wall has been published. Anisotropy is an important property of fibrous tissue crystallinity.Anisotropic properties of acoustically induced electric polarization in soft fibrous biological tissues Jpn. J. Appl. Phys. 63, 04SP17 (2024).This presentation (presenter: Junna Kikuchi) received the Encouragement Award at the 43rd Symposium on Ultrasonic Electronics (USE2023). [...]
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Raised ¥100 Million in FundingRaised 100 million yen through a third-party allotment of new shares to Mirai Souzou No.2 Fund (managed by Innovations and Future Creation Inc.(MIRAI SOUZOU)) and TUAT No.1 Fund (managed by BP Capital Co., Ltd.). [...]
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Invited Lecture at International Conference Acoustics 2023We gave an invited lecture on the ASEM method at the international conference Acoustics 2023 (held in Sydney). [...]
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Selected as one of the “ILS TOP 100 STARTUPS”Selected as one of the “ILS TOP 100 STARTUPS” as the top 100 most popular companies from major companies at #ILS2023, one of the largest open innovation events in Asia, which started on December 4. [...]
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ASEMtech, Inc. was establishedASEMtech, Inc. was established to implement the ASEM method in society. [...]
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Introduced in the morning edition of the Nihon Keizai ShimbunThe ASEM method was introduced in the morning edition of the Nihon Keizai Shimbun (9/13) “University UPDATE: The Frontlines of Knowledge! (Sep. 9)” [...]
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Received Encouragement Award from the Japan Society of Ultrasonics in Medicine“Attempt toward measurements of acoustically stimulated electromagnetic response using ultrasonic array probe” received the Encouragement Award at The Japan Society of Ultrasonics in Medicine. [...]
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Coming soon :
A new perspective on medical diagnostics.
Our next-generation device is on the way.
- Visualizes the orientation and accumulation of collagen fibers
- Supports superimposed display of B-mode echo images and ASEM images
- Quantifies fiber orientation and accumulation as numerical values
Note: This product is currently under development and has not been approved or certified as a medical device. It is not intended for medical use or sale, and is introduced solely for research and development purposes.
