Osaka High Court, Heisei 11 (Ne) No. 18 — Method of attaching a filter to an exhaust outlet
Article information
Article type: Case note
Category: Patents
Topics: Issues discussed in the text
First published on this site: 2026-10-10
Display and classification checked: 2026-10-10
Osaka High Court, Heisei 11 (Ne) No. 18 — Method of attaching a filter to an exhaust outlet
*For a product sold as a set, the “exclusively” requirement is assessed for the set as a whole.
(Excerpt from the judgment, translated)
Product 1 is sold as an integrated set comprising a range-hood filter and a protruding case containing a magnet, together with installation instructions. Purchasers of such sets buy them to use the components together, rather than to use each component separately.
Accordingly, in examining whether a set is an article “used exclusively for working” the invention—whether it has other uses—the economic, commercial and practical possibilities of using the set as a whole should be considered. Even if the filter and the protruding case containing a magnet can each be used independently, no use of the entire set other than working Invention ① can be contemplated. Product 1 is therefore an article used exclusively for working Invention ①.
Original article (2025-08-26):
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This history records actual publication, display, and classification changes made on this site.
2026-10-10: First published the LinkedIn original on this site and set the classification, article information, and consultation link.
2026-10-10: Aligned the translation link, canonical URL and hreflang with the verified public URLs.
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