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Frank Massa (1906-1990) is an American engineer who contributed greatly to the development of the field of acoustical engineering.〔 He is perhaps best known for the development of recorded sound technology for the motion picture industry〔 and, during World War II, the development of the first towed sonar transducers and hydrophones used by the U.S. Navy to detect and defeat German U-boat submarines.〔 ==A production engineer== With a career that spanned 60 years,〔 Massa received more than 140 patents,〔 published scores of technical and scientific articles, and developed hundreds of new products for an array of applications in the field he helped launch: electroacoustics.〔 He has been hailed as not just a pioneer of electroacoustics, but Sea Technology magazine dubbed him “the father of modern sonar transducer development.”〔〔 Yet Massa personally described himself more simply: as a production engineer.〔 Though he was responsible for theorizing and developing a plethora of new technologies, he credited his time in production mode as being the most important thing in his growth as an engineer.〔 Throughout his career, he extolled the merits of engineers remaining not in offices that tested new developments via mathematical models, but rather weaving themselves into the manufacturing process to keep production efficient and product reliability high.〔〔 In a 1985 article in ''Sea Technology'', Massa shared that in the beginning of his career, he was assigned, against his wishes, as a production manager. “I didn’t know then the first thing about production and there I was in charge of it,” he said. But his feelings toward the role quickly changed. “Those were the best years I ever spent, because I got to work with a dozen highly skilled production engineers who taught me the importance of being able to produce transducers as well as invent them.”〔 Massa’s focus on production did not go unnoticed. In a 1972 article in ''Under Sea Technology'', he is described as “one of those rare individuals with the unique ability to quickly get to the basic elements of a problem, and convert good ideas into reliable hardware.”〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Frank Massa」の詳細全文を読む スポンサード リンク
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