Hajime Sasaki

Hajime Sasaki
The University of Tokyo | Todai · Policy Alternatives Research Institute / Department of Technology Management for Innovation

Ph.D.

About

54
Publications
3,948
Reads
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167
Citations
Citations since 2016
22 Research Items
143 Citations
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2016201720182019202020212022010203040

Publications

Publications (54)
Article
Full-text available
Background The need for a new style of clinical trials, called decentralized clinical trials (DCTs), has been increasing as they do not depend on physical visits to clinical sites. DCTs are expected to provide a new opportunity to patients who cannot participate in a clinical trial due to geographical and time limitations. For the adoption of DCTs,...
Article
Full-text available
Horizon scanning for innovative technologies that might be applied to medical products and requires new assessment approaches to prepare regulators, allowing earlier access to the product for patients and an improved benefit/risk ratio. The purpose of this study is to confirm that citation network analysis and text mining for bibliographic informat...
Article
Full-text available
Certain innovative technologies applied to medical product development require novel evaluation approaches and/or regulations. Horizon scanning for such technologies will help regulators prepare, allowing earlier access to the product for patients and an improved benefit/risk ratio. This study investigates whether citation network analysis and text...
Article
Mergers and acquisitions (M&A) have occurred among tens of thousands of companies. Categorization of M&A is important to both corporate strategy and academic research. Previous research largely uses case studies and econometric data analysis to classify the motivations and types of M&A. Here, we propose understanding M&A using large-scale data to g...
Article
Full-text available
Background: The mission of medicines regulatory agencies is to ensure the timely access of innovative products for patients to improve public health. Thus, regulators should foresee evolving technologies and build expertise prior to reviewing innovative products. Novel modalities and new classes of therapeutics in biological or cell-based products...
Preprint
Full-text available
Objectives Horizon-scanning for innovative technologies that might be applied to medical products and require new assessment approaches/regulations will help to prepare regulators, allowing earlier access to the product for patients and an improved benefit/risk ratio. In this study, we focused on the field of AI-based medical image analysis as a re...
Article
Full-text available
As the relationships among technologies become more complex, technological convergence is occurring in many fields, resulting in technological spin-offs in which technologies born in an industry are used in unexpected fields. Predictions of these events, such as patent citation analysis and International Patent Classification's (IPC) association an...
Article
Full-text available
While network centricity-based supplier recommendation models can make predictions with high accuracy, they do not sufficiently encompass supply chain causality, and their interpretability is controversial. We propose adding conditional probabilities from the Bayesian network to a supplier predictive model to improve interpretability while maintain...
Article
Full-text available
In fields with high science linkage, such as the nanocarbon field, trends in academic papers are particularly important for identifying future technological trends. The use of the number of citations allows us to predict the qualitative trends on a paper-by-paper basis. At the same time, it is necessary to be able to comprehensively discuss both qu...
Article
Full-text available
Science and technology activities can be considered problem-solving activities, and scientific papers and patent publications can be viewed as providing explicit knowledge gained from the problem-solving of academia and industry respectively. However, even in the same field, the approach to the same problem is not consistent between a paper and the...
Article
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The number of research papers related to solar cells field is increasing rapidly. It is hard to grasp research trends and to identify emerging research issues because of exponential growth of publications, and the field’s subdivided knowledge structure. Machine learning techniques can be applied to the enormous amounts of data and subdivided resear...
Conference Paper
Regenerative medicine, especially in the area related to biomaterials, is a rapidly advancing interdisciplinary field. Although there are many possibilities in applying materials and technologies in the treatment of different organs, little is quantitatively known about candidate combinations because this field requires extensive knowledge over mul...
Article
Full-text available
Hydropower has superior storage capacity and speedy response to meet sudden fluctuations in electricity demand. According to a recent estimate by International Energy Agency (IEA), its generation capacity could double by 2050. Nevertheless, no great picture of academic knowledge exists in relation to hydropower. This study was undertaken to reveal...
Article
Full-text available
Energy efficiency in Thailand remains low despite the escalating energy consumption. Moreover, Thailand's energy security situation is risky and unsustainable due to its large proportion of energy import and heavy dependency on natural gas for electricity generation. In this paper, a comprehensive citation-based approach employing academic and pate...
Conference Paper
Full-text available
Research and development related to solar cells is attracting mounting attention in the academic world. The number of related research papers is increasing rapidly, making it quite difficult to get an appropriate perception of these papers, restricted not only by time and resource constraints but also by the field's overly subdivided knowledge stru...
Conference Paper
Some R&D projects generated from technological seeds produce potential applications in other fields. In many industries, huge amounts of public investment are spent continuously over long periods. Advanced technology with high levels of technology are required and achieved. Even in cases with projects that apparently failed, technological and econo...
Article
These days, we are seeing increasing demand for accurate measurement of the effectiveness of policies. However, it has been difficult to measure the effectiveness of policies accurately, because of the limited number of methods, which include interviews, analysis based on the number of patents, and analysis of theses. Therefore, there is increasing...
Article
Full-text available
Because of the rapid growth of energy demand in developing countries, policies for energy efficiency are receiving increasing attention. Although Energy Efficiency Standards and Labeling (EES&L) is a standard policy tool in many countries, some developing countries, such as Lao PDR, have not yet implemented them fully. In order to understand the po...
Conference Paper
Full-text available
Hydropower, with characteristics of superior storage capacity and speedy response, can meet sudden fluctuations electricity demand. And its generation capacity could be doubled by 2050 according to IEA's recent estimation. Besides, hydropower doesn't require innovative technologies, and can be operated with minimal cost. However, no big picture of...
Conference Paper
Full-text available
Energy efficiency in Thailand remains low despite the escalating energy consumption. Moreover, Thailand's energy security situation is risky and unsustainable due to its large proportion of energy import and heavy dependency on natural gas for electricity generation. In this paper, a complete citation-based approach employing academic and patent da...
Conference Paper
Full-text available
One of the most important issues for intellectual property oriented country is early to recognize and to invest intensively in science or technology fields that will contribute to industrial development in future. The number of academic papers and patents is rapidly increasing so even specialists cannot keep up with all the events in their field. W...
Article
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Modern technology is increasingly complex and demands an ever-widening range of knowledge and skills. No single country will possess all the knowledge and skills required for addressing global issues such as climate change. Technology collaboration between leading countries is important to promptly and efficiently address the problem. Previous stud...
Conference Paper
Full-text available
The rapid growth of energy demand in developing countries is a dramatic global dynamic, driven by economic growth, increased industrialization and rising standards of living. Although Energy Efficient Standards and Labeling (EES&L) for energy-consuming equipment have now been implemented in over 60 countries, some developing countries, such as Lao...
Conference Paper
A significant structural change in the pattern of economic development in Asian countries has been observed in recent years. In this paper we analyzed their scientific catch-up status using scientific papers on solar cells to clarify the structural change. We found as a result that the catch-up process in Asian countries had progressed rapidly, tha...
Conference Paper
Full-text available
Climate change, pollution, and energy insecurity are among the greatest problems of our time. These problems are no longer issues in particular countries but international issues. Several framework conventions on these issues are now in place throughout the world and developing countries are no exception. Energy efficiency is one of the important i...
Conference Paper
Full-text available
In some countries regional cluster policies are recognized as important policy to form effective knowledge networks. On the other hand, the methodology to evaluate these network structures is still under development. This paper clarifies that scope of the area significantly effects on the evaluation of regional network structure by using network an...
Conference Paper
Full-text available
· R&D projects sometimes generate technological seeds which have application potentiality in unintended field. Examples can be seen in defense, aerospace and nuclear power industries. In these industries, huge amount of public investment is continuously spent in long term and advanced technology with high technological level is required and achieve...
Article
Climate change is a common global issue. Advanced technologies to tackle the problem are spread throughout the world. Among varies kind of energy sources, wind power and solar cell are the most promising technologies for green growth. This paper will first aim to identify the structure of international research collaboration in wind power and solar...
Conference Paper
Full-text available
In Japan, regional cluster policies are recognized as intensive policy to form effective knowledge networks. These Network research has been deemed an effective method for the development of new policies and policy evaluation. The purpose of this paper is to verify the types of impact the setup of the geographical boundary of network has on the res...
Conference Paper
Full-text available
An innovation model providing a solution for climate change and sustainable economic growth is required. In this scenario, renewable energy is one of the most promising technologies. Its research -requires a considerable amount of R&D expenditure and various core technologies. Therefore, international research collaboration is effective for prompt...
Conference Paper
Full-text available
In Japan, regional cluster policies are recognized as intensive projects to form effective knowledge networks. On the other hand, the methodology to evaluate these network structures is still under development. This paper clarifies that scope of the area significantly effects on the evaluation of regional network structure by using network analysis...
Article
An innovation model providing a solution for climate change and sustainable economic growth is required. In this scenario, clean energy is the most promising technology. Their research requires a considerable amount of R&D expenditure and various core technologies. Therefore, international research collaboration is effective for prompt and efficien...
Article
Both the expansion of knowledge and the fragmentation of disciplines are causing delay in important development strategy decision in many promising industries. Policy makers and practitioners expect tools to structure the expanding knowledge and to roadmap for breakthroughs. In this paper, we approach this challenge with a citation network analysis...
Conference Paper
Full-text available
At present, an innovation model that provides a solution for climate change and sustains economic growth is required. In this scenario, renewable energy is considered as one of the most promising technologies. No single country will possess all the knowledge and skills required. Therefore, international research collaboration is effective for promp...
Conference Paper
Full-text available
In Japan, national projects for forming regional cluster have been developed since 2001. It is widely recognized as intensive projects in national cluster policy to form effective knowledge networks. On the other hand, the methodology to identify and evaluate these network structures is still under development. This paper aims to clarify that sc...
Conference Paper
While the significance of innovation is on the increase in society and economy, it is a pressing issue to understand the field of intellectual property rights (IPR) panoramically; however, almost no such meta-structure in theory has been introduced to this present day. The authors have analyzed academic papers in the IPR field to identify the areas...
Conference Paper
Full-text available
The global intellectual property system is currently being revolutionized by changes in innovation and the quantitative expansion in patenting. There is an expectation of applying the results of academic patents studies to the reformation of the intellectual property system. On the other hand, the rapid quantitative expansion in academic knowledge...
Conference Paper
The Purpose of this paper is to clarify that it is possible to extract main technological words and recent technological trends of service industry using the method of natural language processing analysis of patent. In recent years, the service industries have been shown remarkable growth. Responding to this, governments of major countries have...

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