Katate Masatsuka is a Japanese part-time author. He is an author of unique three-volume high-school Math textbooks (in Japanese) titled Seishun High-School Mathematics and a technical book on Computational fluid dynamics (CFD) titled I do like CFD, VOL.1.He is also a singer and song-writer with over 100 songs written so far (2003–2013). He was born in Sakai, Osaka, Japan, in 1971. He graduated from Tokai University in 1994 and entered the graduate school of the University of Tokyo. He then moved to the University of Michigan to study Computational Fluid Dynamics. During his graduate study, he worked at Koby International Academy in Novi as a part-time instructor in Math and Science. He obtained his Ph.D. in 2001. His interest lies exclusively in creating something new and unique.