| Contracting Party | Treaty | Signature | Instrument | In Force | Details |
|---|
| Japan | Berne Convention | | Accession: April 18, 1899 | July 15, 1899 | Details |
| Japan | Budapest Treaty | | Accession: May 19, 1980 | August 19, 1980 | Details |
| Japan | Madrid Agreement (Indications of Source) | | Accession: April 21, 1953 | July 8, 1953 | Details |
| Japan | Madrid Protocol | | Accession: December 14, 1999 | March 14, 2000 | Details |
| Japan | Nice Agreement | | Accession: November 17, 1989 | February 20, 1990 | Details |
| Japan | Paris Convention | | Accession: April 18, 1899 | July 15, 1899 | Details |
| Japan | Patent Cooperation Treaty | June 19, 1970 | Ratification: July 1, 1978 | October 1, 1978 | Details |
| Japan | Phonograms Convention | April 21, 1972 | Acceptance: June 19, 1978 | October 14, 1978 | |
| Japan | Rome Convention | | Accession: July 26, 1989 | October 26, 1989 | Details |
| Japan | Strasbourg Agreement | September 13, 1971 | Ratification: August 16, 1976 | August 18, 1977 | |
| Japan | Trademark Law Treaty | | Accession: January 1, 1997 | April 1, 1997 | Details |
| Japan | UPOV Convention | | Acceptance: August 3, 1982 | September 3, 1982 | Details |
| Japan | WIPO Convention | July 14, 1967 | Ratification: January 20, 1975 | April 20, 1975 | Details |
| Japan | WIPO Copyright Treaty | | Accession: June 6, 2000 | March 6, 2002 | |
| Japan | WIPO Performances and Phonograms Treaty | | Accession: July 9, 2002 | October 9, 2002 | Details |
