Osaka District Court, Case No. 2024 (Wa) 2606
Updated: 4 hours ago
Article information
Categories: Patents
Topics: Claim interpretation / Numerical limitations and parameters
Published on this website: 2026-09-29
Osaka District Court, Case No. 2024 (Wa) 2606
[Electric coffee maker] (Presiding Judge Matsuami)
Invention 1 at issue has a configuration in which the heater is turned off when the water temperature inside the boiler reaches 90–100°C, and steam pressure caused by boiling is not generated.
The defendant's product has a configuration in which the heater is turned off after the hot water in the boiler boils and reaches 100.7°C (measured value), and coffee grounds are warmed using vapor pressure (1035.8 hPa) caused by boiling.
⇒ Not satisfied
The claim wording "no remaining hot water is left" means, as its wording states, that no water exists inside the boiler.
Approximately 9 mL of hot water remains in the defendant's product after extraction is complete.
⇒ Not satisfied
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