Mitsutaka Fujita (藤田 光孝, Fujita Mitsutaka?, August 16, 1959 – March 18, 1998) was a Japanese physicist. He proposed the edge state that is unique in the graphene zigzag edges. Also, he theoretically pointed out the importance and peculiarity of nanoscale and edge shape effects in nanographene. The graphene nanoribbons was theoretically introduced by him and his research group to study the nanoscale effect of graphene. He had been an associate professor in the Tsukuba University, and died by subarachnoid hemorrhage on March 18, 1998. His posthumous name is Rikakuin-Shinju-Houkou-Koji (理覚院深珠放光居士?) in Japanese.
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