知財立国の発展へMinoru Takeda, Nobuhiro Nakayama, Tomokatsu Tsukahara, Yōichi Ōmori, Masayasu Ishida, Eiji Katayama · First published 1998 · Latest edition 2013Open the Tome
Shōgaku soshō jitsumu manyuaruTomokatsu Tsukahara, Kōsuke Yokota, Tsunehiro Masaki, Yoshio Satō · First published 2000Open the Tome
