Refers to the person who first devised or created a plan, system, method, or idea. Slightly formal; often used in business, academic, or technical contexts.
The originator of this new teaching method is an elementary school teacher.
He is known as the inventor of that groundbreaking system.
考案者 is similar but more common and slightly less formal; it can refer to the deviser of a practical method or device. 創案者 carries a nuance of originality and foundational creation.
Compound of 創案 (そうあん, 'original plan' or 'creation') and 者 (しゃ, 'person'). The exact historical derivation is uncertain, but the word follows a standard Sino-Japanese pattern for agent nouns.