Algorithms for Finding in the Lump Both Bounds of Chromatic Number of a Graph. - T. Sakaki; K. Nakashima; Y. Hattori (Comput. J., 1976)

Clamp type built-in current sensor using PCB in high-voltage power modules. - Masanori Tsukuda; K. Nakashima; S. Tabata; Kazunori Hasegawa; Ichiro Omura (Microelectron. Reliab., 2017)