An implantable power supply with an optically rechargeable lithium battery. - Kazuya Goto; Tetsuya Nakagawa; Osamu Nakamura; Satoshi Kawata (IEEE Trans. Biomed. Eng., 2001)

Partitioning a Multi-Weighted Graph to Connected Subgraphs of Almost Uniform Size. - Takehiro Ito; Kazuya Goto; Xiao Zhou 001; Takao Nishizeki (IEICE Trans. Inf. Syst., 2007)