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Topics

Published:2025.04.07
Updated :2025.04.07

How to Write Claims in Patents in Japan

1. Multi-Multi Claims are restricted (from April 1, 2022).

2. Multiple dependent claims are allowed.

3. Multiple independent claims of different categories can be written.

4. Multiple independent claims of the same category can be written.

5. Programs and recording media on which programs are recorded are also permitted.

6. Reference numerals may or may not be added to each component of a claim. (Reference numerals are often not included.)

7. A two-part format may or may not be used.

 

Japanese Patent Attorney
Yosuke Katsumi

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