Tohoku University · Engineering
Professor Masayoshi Mizutani's research lab specializes in advanced surface engineering and biomaterials science, focusing on developing innovative surface modification techniques for medical implants and functional materials. The lab explores laser-based surface treatments and electrical discharge honing (ELID) grinding to enhance the formation of uniform, stable oxide layers on titanium and other biocompatible materials, improving their osseointegration and long-term performance. A key research direction involves optimizing surface topography and chemistry—such as microasperities and hydroxyl groups—to promote calcium phosphate precipitation and osteoblast activity. The lab also investigates intelligent log analysis systems for system diagnostics, reflecting a multidisciplinary approach combining materials science with data analytics.
Figures are computed from collected data and may differ slightly.
In modern computer system, system logs are important for problem determination in troubleshooting. Especially in the troubleshooting of systems, system administrators need to understand overview of the problems and identify the root causes quickly, and system logs can help the system administrators. However large numbers of unfamiliar system logs when are generated problems occur, and it's difficult to understand and use them. Most of the existing methods for interpreting system logs don't work
In this study, we developed a surface modification technology for implants using commercially pure (cp) Ti. The technology used in this study leads to reduction in the time required for adhesion between bone and surfaces of implants. The existence ofmicroasperities and oxide layers is important to induce calcium phosphate precipitation and bone formation activity of osteoblasts. In addition, we focused on nanosecondpulsed laser treatment as a method to create both microasperities and oxide layer
Conventional biomaterials, such as titanium alloys, require enhanced chemical stability and wear resistance, which are dependent on the quality of the surficial oxide layer. However, it is very difficult to produce a sufficiently homogenous oxide layer by polishing using isolation abrasive alone. In our previous study, we proposed a new electrical grinding method (ELID grinding). The process improves oxide formation on the finished surface, resulting in finished surfaces with very thick and pote
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