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Patent Act (Act No. 121 of April 13, 1959, amended up to July 3, 2023), Japan
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Latest Version in WIPO Lex
Year of Version
2023
Dates
Amended up to:
July 3, 2023
Entry into force:
April 1, 1960
Promulgated:
April 13, 1959
Type of Text
Main IP Laws
Subject Matter
Patents (Inventions)
Subject Matter (secondary)
Utility Models,
Undisclosed Information (Trade Secrets),
Enforcement of IP and Related Laws,
IP Regulatory Body
Notes
This consolidated version of the Patent Act takes into account amendments up to the "Act for Partial Revision of the Unfair Competition Prevention Act (Act No. 51 on June 14, 2023), which was promulgated on June 14, 2023, and entered into force on different dates.
The amendments introduced by the said amending Act No. 51 to this consolidated version of the Patent Act entered into force on July 3, 2023 (see Articles 186, 192 (1) (ii) and 192-2 for detailed amendments).
Available Texts
Main text(s)
Main text(s)
Japanese
特許法 (昭和34年4月13日法律第121号. 最終改正平成2023年07月3
PDF
English
Patent Act (Act No. 121 of April 13, 1959, amended up to July 3, 2023)
PDF
WTO Notifications Coversheet
WTO Notifications Coversheet
English
Patent Act (Act No. 121 of April 13, 1959, amended up to July 3, 2023)
PDF
French
Loi sur les brevets (loi n° 121 du 13 avril 1959, telle que modifiée jusqu'au 3 juillet 2023)
PDF
Spanish
Ley de Patentes (Ley Nº 121 de 13 de abril de 1959, modificada al 3 de julio de 2023)
PDF
Legislation
Supersedes (19 text(s))
Supersedes (19 text(s))
Is amended by (6 text(s))
Is amended by (6 text(s))
Is implemented by (3 text(s))
Is implemented by (3 text(s))
Treaties
WTO Document Reference
IP/N/1/JPN/71
IP/N/1/JPN/P/24
WIPO Lex No.
JP262