Hattori is a supporting character in the film The Wind Rises. He serves as the design chief of the Mitsubishi Aircraft Company, the workplace of the protagonist Jiro Horikoshi and his colleague Kiro Honjo. Hattori first appears on Jiro's first day at the company, where he and the supervisor Kurokawa examine Jiro's initial draft designs. His professional role places him as a senior figure in the engineering department, overseeing the development of aircraft projects. Later in the story, Hattori is present when Jiro presents his concept for a lighter aircraft, listening to the proposal. He also appears during a period when Jiro is being pursued by the Japanese secret police, indicating that Hattori remains in the orbit of the company's operations during tense times. As a design chief, his responsibilities involve evaluating and guiding the work of junior engineers, though his personality is not extensively developed in the film. He is portrayed as a competent and experienced professional who fulfills his duties within the hierarchical structure of Mitsubishi. His motivations are tied to the company's goals of producing effective military aircraft for Japan, and he acts as a senior colleague rather than a close confidant. His relationship with Jiro is primarily professional; he observes Jiro's work and listens to his ideas but does not mentor him on a personal level. His interactions with Kurokawa suggest a collegial working relationship. Hattori does not undergo significant character development, as his role is limited to a few scenes that reinforce the corporate and technical environment in which Jiro operates. His notable abilities include his expertise in aircraft design management and the judgment required to evaluate technical drafts. Overall, Hattori functions as a background figure who contributes to the realistic depiction of the engineering workplace in pre-war Japan.