Hisashi Matsuda (松田 久, 2 March 1924 - 13 November 2011)[1] was a Japanese physicist known for his work in ion optics and mass spectrometry, specifically known for his contributions to instrument design.
[2] Matsuda was born in Osaka and studied physics and mathematics at Osaka University, receiving a PhD in 1957 from Osaka University for his thesis on mass spectrometry under Koreichi Ogata.
[2] His career was devoted to mass spectrometry, developing novel ion optics and improving resolving power.
[1] He constructed mass spectrometers suited for analysis of large biomolecules and was one of the first to realize the implications of mass spectrometry on the analysis of peptides and proteins.
[1] He received the Thomson medal from the International Mass Spectrometry Society in 1991 and the Order of the Rising Sun, Gold Rays with a Neck Ribbon in spring 2002.