Strictly digital neurocomputer based on a paradigm of constraint set programming for solving combinatorial optimization problems. - Tohru Nakagawa; Katsuhiko Murakami; Hajime Kitagawa (ICNN, 1993)

A neural inverse function for automatic test pattern generation using strictly digital neural networks. - Masatoshi Arai; Tohru Nakagawa; Hajime Kitagawa (VTS, 1993)

Solving the bipartite subgraph problems using strictly digital neural networks with virtual slack-neurons. - Katsuhiko Murakami; Tohru Nakagawa; Hajime Kitagawa (ICNN, 1995)