Please note that the texts of laws available through the following links do not reflect subsequent amendments.

Japanese Intellectual Property Laws

Patent Law of Japan (Consolidation), 13/04/1959 (22/12/1999), No. 121 (No. 220)
Utility Model Law of Japan (Consolidation), 13/04/1959 (22/12/1999), No. 123 (No. 220)
Trademark Law of Japan (Consolidation), 13/04/1959 (22/12/1999), No. 127 (No. 220)
Design Law of Japan (Consolidation), 13/04/1959 (22/12/1999), No. 125 (No. 220)
Unfair Competition Prevention Law of Japan (Consolidation), 19/05/1993 (14/12/1994),
    No. 47 (No. 116)
The Act Concerning the Circuit Layout of a Semiconductor Integrated Circuit (Consolidation),     31/05/1985 (12/11/1993), No. 43 (No. 89)
2003 AMENDMENT TO JAPAN PATENT LAW (JPAA)
PATENT ATTORNEYS LAW (JPAA)
SUMMARY OF REVISION OF THE JAPANESE PATENT ATTORNEY LAW (January 2003)(JPAA)
SUMMARY OF REVISIONS OF THE JAPANESE PATENT LAW AND THE JAPANESE
    TRADEMARK LAW(November 2002)(JPAA)
Copyright Law (CRIC)
Examination Guidelines for Patent and Utility Model in Japan (4.11.2005)
Examination Guidelines for Trademarks (10.11.2001)
Implementing Guidelines for Inventions in Specific Fields (Chapter 1: Computer Software
    Related Inventions, Chapter 2: Biological Inventions)
Procedures for Obtaining a Patent Right
Procedures for Obtaining a Utility Model Right
Procedures for Obtaining a Design Right
Procedures for Obtaining a Trademark Right
Examination Guidelines for Patent and Utility Model in Japan (4.11.2005)
Examination Guidelines for Trademarks (10.11.2001)
Implementing Guidelines for Inventions in Specific Fields (Chapter 1: Computer Software
    Related Inventions, Chapter 2: Biological Inventions)
Procedures for Obtaining a Patent Right
Procedures for Obtaining a Utility Model Right
Procedures for Obtaining a Design Right
Procedures for Obtaining a Trademark Right

Other Information on Intellectual Properties in Japan

Schedule of Fees (JPO)