| In 1972 | Born in GUNMA prefecture, Japan. | |
| March 31, 1991 | Graduated from Takasaki Senior High School. | Club activity at school: Karate (black belt) | 
| April 1, 1991, to March 31, 1995 | Undergraduate student of Faculty of Science and Engineering, WASEDA University (in Tokyo, Japan). | Club activity at university: Waseda Ensemble Guitare | 
| March 31, 1995 | Graduated from Department of Physics, Faculty of Science and Engineering, WASEDA University (in Tokyo, Japan). | Theme of my graduation thesis: CP violation in Neutron Electric Dipole Moment | 
| April 1, 1995, to March 31, 2001 | Graduate student of 
            Department of Physics,
            Graduate School of Science,
            University of Tokyo
              (in Tokyo, Japan), working for ZEUS experiment at DESY (in Hamburg, Germany).  | 
      
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| March, 2001 | Obtained a doctoral degree in science from University of Tokyo. | Abstract of my doctoral thesis | 
| April 1, 2001, to March 31, 2003 | Postdoctoral researcher of RCNS,
          TOHOKU University
          (in SENDAI city, MIYAGI prefecture, Japan),
           working for BELLE experiment at KEK (in TSUKUBA city, IBARAKI prefecture, Japan).  | 
      
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| April 1, 2003, to March 31, 2007 | 
        Research Associate of
          Accelerator Laboratory,
          KEK(in TSUKUBA city, IBARAKI prefecture, Japan),
           belonging to KEKB-RF / ARES-cavity group.  | 
      
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| April 1, 2007, to March 31, 2013 | 
        Assistant Professor of
          Accelerator Laboratory,
          KEK (in TSUKUBA city, IBARAKI prefecture, Japan),
           belonging to the KEKB-RF group.  | 
      
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| April 1, 2013 to March 31, 2024 | 
        Associate Professor of
          Accelerator Laboratory,
          KEK (in TSUKUBA city, IBARAKI prefecture, Japan),
           belonging to the KEKB-RF group.  | 
      
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    March 31, 2024 to the present | 
        Professor of
          Accelerator Laboratory,
          KEK (in TSUKUBA city, IBARAKI prefecture, Japan),
           belonging to the KEKB-RF group.  | 
      
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Main Research Areas
| Normal-Conducting RF High-Gradient Particle Acceleration, Breakdown science, Particle-Accelerator Physics, Particle Physics, Computer Science | 
Academic Societies
| Particle Accelerator Society of Japan, Physical Society of Japan |