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Hank Risan
Hank Risan (born February 13, 1955) is an American business executive, scientist, and creator of digital media rights and security patents. == Early life and education == Risan was born in Burbank, California in 1955. He began studying the piano at age 5 and the guitar at age 13. At age 15, Risan became an apprentice to fretted instrument maker Jonathan Carmi Simon at the Dulcimer Works in Los Angeles and at age 17 started buying and selling vintage guitars made by C. F. Martin & Company.〔 Risan worked with noted neurobiologist Dr. Charles Leo Ortiz, head of the Dept. of Biology at University of California, Santa Cruz (UCSC).〔 Risan also did 3-D simulated computer modeling of the tertiary topology of the hemoglobin molecule with a grant from the National Institutes of Health. For Dr. Gerhard Ringel, head of the Math department at UCSC, Risan worked on embeddings on orientable and non-orientable surfaces. He also worked on a non-computer-based solution for the four color theorem. During the 1970s, Risan studied mathematics for two years at the University of California, Los Angeles (UCLA) and earned bachelor's degrees in mathematics (with Honors) and biology from UCSC. His undergraduate thesis in neurobiology concerned the network topology of the human brain. Risan concurrently attended Ph.D. programs at UCSC and the University of California, Berkeley (where he was Phi Beta Kappa) in mathematics and neurobiology. He also studied topological manifold theory with Robion Kirby, co-inventor the Kirby–Siebenmann class, at UC Berkeley. Risan completed his Ph.D. dissertation at University of Cambridge, England and he attended graduate-level business courses at the London School of Economics.
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