Ph.D. in Marine Biochemistry, University of Tokyo
- Professor, Tohoku University (until March 1998)
- Professor emeritus, Tohoku University
- April 1998, Academic Advisor, Japan Food Research Laboratories (Inc. Foundation) (- present)
- September 2011, Distinguished Research Fellow, National Research Institute of Fisheries Science, Fisheries Research Agency (-present)
- Senior Research Manager, Area Oriented Joint Research Activities for Okinawa Prefecture area, Japan Science and Technology Agency (JST) (until December 2007)
- Senior Research Manager, Academic-Industry Collaboration for Okinawa Coastal Lines, MEXT (until March 2011)
| 1989 | Chair, Marine toxicity working group, IUPAC (until 1995) |
| January 1993 | Chair, Marine toxicity working group, UNESCO (until December 1995) |
| November 2011 | Member, Board of Governors, Okinawa Institute of Science and Technology School Corporation (-present) |
| November 2011 | Member, Board of Councilors, Okinawa Institute of Science and Technology School Corporation (-present) |
| June 1989 | Special award by the 4th International Conference on Toxic Marine phytoplankton, Lund, for outstanding achievements in the field of marine toxin chemistry (since then termed the Yasumoto Award) |
| February 1994 | P. J. Scheuer Award for Natural Products Chemistry |
| March 1994 | Naito Foundation Research Prize |
| March 1994 | Japan Society for Bioscience, Biotechnology, and Agrochemistry Prize |
| May 1999 | The Medal with Purple Ribbon |
| June 2004 | The Japan Academy Prize, The Imperial Prize |
| March 2006 | Nakanishi Prize, American Chemical Society, U.S.A. |
| November 2010 | The Order of the Sacred Treasure, Gold Rays with Neck Ribbon |
