The copyright to a cinematographic work subsists for 70 years after the work is made public (or for 70 years after the creation of the work, if the work is not made public within the 70 years after its creation).
When the copyright to a cinematographic work expires at the expiration of the duration of copyright, the copyright to original work connected with that cinematographic work also expires as regards the exploitation of the cinematographic work.
The provisions of the preceding two Articles do not apply to the copyright to a cinematographic work.
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(Terms of Protection for Anonymous or Pseudonymous Works)
The copyright to an anonymous or pseudonymous work subsists for a period of 70 years after the work is made public; provided, however, that if, before the expiration of a duration of copyright for an…
無名又は変名の著作物の著作権は、その著作物の公表後七十年を経過するまでの間、存続する。ただし、その存続期間の満了前にその著作者の死後七十年を経過していると認められる無名又は変名の著作物の著作権は、その著作者の死後七十年を経過したと認められる時において、消滅したものとする。
Open this provision(The Term of Protection for Works Attributed to an Organization)
The copyright to a work whose authorship is attributed to a corporation or other organization subsists for a period of 70 years after the work is made public…
法人その他の団体が著作の名義を有する著作物の著作権は、その著作物の公表後七十年（その著作物がその創作後七十年以内に公表されなかつたときは、その創作後七十年）を経過するまでの間、存続する。
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「著作物」
A creative expression of thoughts or feelings falling within the literary, academic, artistic or musical domain — a work in the narrow sense, as distinct from 著作物等 (works, performances, phonograms, broadcasts and cablecasts), which the Ministry's English also calls 'work'.
Defined inArticle 2, paragraph (1), item (i)· applies throughout the law
cinematographic work
「映画の著作物」
A cinematographic work, including a work expressed in a way that produces visual or audiovisual effects similar to those of a film and fixed in some medium.
Defined inArticle 2, paragraph (3)· applies throughout the law
copyright
「著作権」
The economic rights of an author set out in Articles 21 to 28: the rights of reproduction, stage and musical performance, on-screen presentation, public transmission, recitation, exhibition, distribution, transfer of ownership, rental, translation and adaptation, and the original author's rights over the use of derivative works.
Short name set inArticle 17, paragraph (1)