Japan's Supreme Court has ruled that artificial intelligence cannot be listed as an inventor on patent applications, requiring that only a human can be named as the inventor. This decision sets a legal precedent in a major jurisdiction, clarifying that AI-generated inventions must have a human inventor, which affects patent strategies for companies using AI in research and development. The ruling aligns with similar positions in the U.S. and Europe, where patent offices have also held that AI systems cannot be inventors. It does not prohibit using AI in the invention process but requires human contribution and control.
Background
Patent law traditionally requires an inventor to be a natural person who conceives the invention. As AI systems become more capable of generating novel outputs, courts and patent offices worldwide are grappling with whether AI can be considered an inventor. Japan's ruling reinforces the human-centric view of inventorship.
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Discussion
Community comments were largely supportive, noting that AI lacks accountability and should not own benefits. Others questioned practical loopholes, such as inventors simply listing themselves when AI was used. Some referenced economic arguments against patents altogether.