Since 1982, has been teaching philosophy, philosophy, and logic at Chiba University's Faculty of Letters, and has studied in fields such as language philosophy, science philosophy, history of logic, applied ethics, language processing, document processing, dialogue processing, and science and technology history. .. He also serves as Director of the University Information Processing Center and Director of the University Library. Since 2011, has been engaged in international collaboration such as university-specific certification evaluation and higher education quality assurance as a professor and a specially appointed professor of the Research and Development Department of the University Evaluation and Degree Conferring Organization (currently the University Reform Support and Degree Conferring Organization).

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