Goro C. Kato is a professor emeritus of mathematics at California Polytechnic State University, San Luis Obispo, CA, USA. Kato was born in 1948 in Kariya, Japan, and he came to the USA on a Rotary International Foundation Fellowship. He earned his Ph.D. in 1979 from the University of Rochester, Rochester, NY, and his Ph.D. thesis advisor was Professor Saul Lubkin. His areas of study are p-adic cohomology (ref: The Heart of Cohomology published by Springer-Verlag, 2006), the theory of D-modules (ref: Fundamentals of Algebraic Microlocal Analysis, with coauthor Daniele Struppa, published by Chapman & Hall / CRC, 1999), and temporal topos theory (ref: Elements of Temporal Topos, published by Abramis Academic Publishing, 2013). Kato’s memoir on his visits from 1986–2008 to the Institute for Advanced Study, Princeton, NJ, was published (in Japanese) by Iwanami-Shoten, Tokyo, 2019.