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Patent Act (Act No. 121 of April 13, 1959, as amended up to April 1, 2022), Japan
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Superseded Text
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Year of Version
2022
Dates
Amended up to:
April 1, 2022
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 Patent Act takes into account amendments up to "Act on the Partial Revision of the Patent Act and Other Acts (Act No. 42 of May 21, 2021)", which was promulgated on May 21, 2021, and entered into force on different dates.
The amendments included by the said amending Act No. 42 to this consolidated version entered into force on April 1, 2022.
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2022年04月1)
PDF
English
Patent Act (Act No. 121 of April 13, 1959, as amended up to April 1, 2022)
PDF
WTO Notifications Coversheet
WTO Notifications Coversheet
English
Patent Act (Act No. 121 of April 13, 1959, as amended up to April 1, 2022)
PDF
French
Loi sur les brevets (loi n° 121 du 13 avril 1959, telle que modifiée jusqu'au 1er avril 2022)
PDF
Spanish
Ley de Patentes (Ley Nº 121 de 13 de abril de 1959, según enmendada al 1 de abril de 2022)
PDF
Legislation
Supersedes (18 text(s))
Supersedes (18 text(s))
Is superseded by (1 text(s))
Is superseded by (1 text(s))
Treaties
WTO Document Reference
IP/N/1/JPN/62
IP/N/1/JPN/P/22
WIPO Lex No.
JP256