Search Results - "Shibata, Masatomo"
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GaN substrates having a low dislocation density and a small off-angle variation prepared by hydride vapor phase epitaxy and maskless-3D
Published in Japanese Journal of Applied Physics (01-07-2020)“…To produce high-quality GaN (0001) substrates with a low threading dislocation density (TDD) and a small off-angle variation, we have developed a technique…”
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A method for using video presentation to increase the vividness and activity of cortical regions during motor imagery tasks
Published in Neural regeneration research (01-12-2021)“…In recent years, mental practice (MP) using laterally inverted video of a subject's non-paralyzed upper limb to improve the vividness of presented motor…”
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Differences in Cortical Area Activity and Motor Imagery Vivid-Ness during Evaluation of Motor Imagery Tasks in Right and Left Hemiplegics
Published in Brain sciences (29-04-2023)“…The ability to develop vivid motor imagery (MI) is important for effective mental practice. Therefore, we aimed to determine differences in the MI clarity and…”
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Fabrication of 3-in GaN substrates by hydride vapor phase epitaxy using void-assisted separation method
Published in Journal of crystal growth (04-01-2008)“…By using the hydride vapor phase epitaxy and a void-assisted separation method, freestanding 3-in GaN substrates were successfully fabricated for the first…”
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A Method for Using Video Presentation to Increase Cortical Region Activity during Motor Imagery Tasks in Stroke Patients
Published in Brain sciences (23-12-2022)“…Previous studies have reported that stroke patients have difficulty recalling the motor imagery (MI) of a task, also known as MI vividness. Research on…”
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Preparation of Freestanding GaN Wafers by Hydride Vapor Phase Epitaxy with Void-Assisted Separation
Published in Japanese Journal of Applied Physics (15-01-2003)“…Authors developed a novel technique for preparing large-scale freestanding GaN wafers. Hydride VPE (HVPE) growth of thick GaN layer was performed on a GaN…”
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Development of GaN substrate with a large diameter and small orientation deviation
Published in physica status solidi (b) (01-08-2017)“…In this study, we demonstrated a very large freestanding GaN crystal with a diameter of 175 mm developed by the “tiling technique”. The technique merges small…”
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Homoepitaxial Hydride Vapor Phase Epitaxy Growth on GaN Wafers Manufactured by the Na-Flux Method
Published in Crystal growth & design (05-07-2017)“…Homoepitaxial hydride vapor phase epitaxy (HVPE) growth on GaN substrates grown with a Na-flux method, which is the most promising approach for fabrication of…”
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Thermal and Electrical Properties of High-Quality Freestanding GaN Wafers with High Carrier Concentration
Published in Japanese Journal of Applied Physics (01-10-2006)“…The thermal and electrical properties of high-quality bulk GaN crystals fabricated by hydride vapor phase epitaxy were investigated in the…”
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Environmental Control System for spinal cord injured
Published in 2012 IEEE Sensors (01-10-2012)“…In this paper, Environmental Control System for spinal cord injured to support their living is proposed. A distinguished feature of this system is that an…”
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Conference Proceeding -
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Development of Assistive Device by Elderly Engineers Association
Published in 2015 IEEE Fifth International Conference on Big Data and Cloud Computing (01-08-2015)“…In rural areas, people have lots of problems caused by the shortage of young people and increase of elderly. Various kind of trials were achieved to cope with…”
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Conference Proceeding -
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Vision device to support independent life for people with serious disability
Published in 2011 International Conference on Multimedia Technology (01-07-2011)“…Persons suffering from intractable disease like ALS (Amyotrophic Lateral Sclerosis) and spinal cord injured present symptoms of muscular deteriorations. These…”
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Conference Proceeding