Hiromichi Kataura (片浦 弘道, Kataura Hiromichi) is a Japanese scientist known for his work on synthesis and characterization of single-wall and double-wall[1] carbon nanotubes and on encapsulation of water,[2] fullerenes and other organic molecules[3][4][5] into carbon nanotubes.

Kataura is the leader of self-assembled nano-electronics group at the National Institute of Advanced Industrial Science and Technology (AIST).

Kataura plot is a graph relating the energy of the band gaps in a carbon nanotube and its diameter.

A nanotube of certain diameter can be metallic M or semiconducting S; it can have several band gaps, conventionally labeled as S11, S22, M11, M22, etc.

The original article on the Kataura plot[6] has been reported in a lesser-known journal Synthetic Metals.