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Assignee: National Aerospace Laboratory of Japan


Location: Chofu-shi, JP
No. of patents: 1

NumberTitleIssue Date
7210897Actively-controlled sound absorption panel system using movement-controlled reflective plate
A space 4 constituted by a sound absorption panel section 1 and active sound absorption control system section 2 between the inner and outer walls of a nacelle forming an engine intake/exhaust duct is utilized as an acoustic resonance field and ...
05/01/2007
 
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