Honorary Fellow of Hitachi Ltd., President of Frontier Biosystems Inc.
He was engaged in developing new ionization technologies (LC/MS, matrix assisted SIMS, etc.) for mass spectrometry of bioorganic compounds from 1977 to 1985.
He started to develop fluorescent DNA sequencers at 1982. Since then he has been engaged in developing technologies for DNA analysis. He developed capillary array DNA sequencers which were commercialized to contribute greatly to the completion of the human genome project. He started to develop technologies for single cell analysis at 2005. Now he is much interested in developing tools for site specific tissue analysis at single cell resolution.