Eric Kotani is the pseudonym used by Yoji Kondo, an astrophysicist who works in the space program. As of 2000, he has published eight science fiction books:

"Act of God", Eric Kotani & John Maddox Roberts, Baen Books (1985).

"The Island Worlds", E. Kotani & J.M. Roberts, Baen (1987).

"Between the Stars", E. Kotani & J.M. Roberts, Baen (1988).

"Delta Pavonis", E. Kotani & J.M. Roberts, Baen Books (1990).

"Supernova", R. M. Allen & E. Kotani, Avon Books (1991).

"Requiem: New Collected Works by Robert A. Heinlein and Tributes to the Grand Master", ed. Y. Kondo, Tor Books (1992). [It became a Book of the Month selection and made the national best-seller list of the San Francisco Chronicle.]

"Death of A Neutron Star", E. Kotani, Pocket Books (1999).

"Legacy of Prometheus", E. Kotani & J.M. Roberts, Tom Doherty Associates (Tor Books) (2000).

Kotani's short story, "The Edgeworld", is contained in the recent Martin Greenberg-John Helfer anthology "Star Colonies", DAW Books (2000).

"Orbital Station Fear", E. Kotani, published in Teknobook anthology, "Space Stations" (2004).