With Atago Law Office, 1980-1986; Hijiribashi Law Office, 1986-1987 and Dewey Ballantine, New York, 1991-1992. Author: "Restrictions on Land Ownership: Modern Society and Land Ownership," Jurist, No. 828, 1985; "Fundamental Analysis of the Japanese Land and Housing Lease Law: Comparison with U.S. Law," The Japanese Journal of Real Estate Sciences, Vol. 9, No. 3, 1994; "Japanese Environmental Law," Environmental Law & Practice, Vol. 2, No. 1, 1994; "Freedom to Plan and Restrictions on Plans for the Reallocation of Land when Rationalizing Parcels of Land (Kukaku-seiri)," Jurist, No. 1076, 1995; "Very Deep Underground Areas and Land Ownership," NBL, No. 583, 1995; "Prospects Concerning the Supply of Multi-Unit Leased Housing in the Private Market," Jutaku, Vol. 45, August 1996; "Very Deep Underground Areas as the Common Property of the Nation," Jichi-Kenkyu, Vol. 74, No. 3, 1998; "Very Deep Underground Use System as a Bypass," Jichi-Kenkyu, Vol. 74, No. 9, 1998; "U.S. Condominium Laws," Hanrei Times, Vols. 997, 999, 1999; "Analysis of Drafts of the Act on Purification of Soil Contamination," Hanrei Times, Vol. 1071, 2001; "Approaches to Revision and Interpretation of the Law of Real Estate Leases," The Japanese Journal of Real Estate Sciences, Vol. 16, No.1, 2002; "Soil Contamination Countermeasures Law," Hakuyosha, 2003. Co-Author: Legal Practice of Rationalizing Parcels of Land (Kukaku-seiri), Shin-nihon-hoki, 1999; "Guidance to Fixed Term Building Lease, " Jutaku-Shinposha, 2000; "Memories of Cities," Hakuyosha, 2002.