1.
new idea; new design; novel proposal
A newly devised idea, plan, or design. Also used in patent law as part of 実用新案 (utility model), a category of intellectual property covering minor inventions.
Compound of 新 (new) + 案 (plan, idea). Used in two registers: an everyday sense of 'new idea/proposal' and a legal sense in patent law.
Common collocations
Legal context
In Japanese patent law, 実用新案 (utility model) is a separate, lower-bar form of protection than 特許 (full patent) — typically for minor improvements to existing products.