Invention Grant
US09218800B2 Sound transmission material, sound control plane structure including building use using the sound transmission material, windscreen for microphone, protective grille, sound transmission projection screen, and speaker
有权
声音传输材料，声控平面结构，包括使用声传播材料的建筑物使用，麦克风挡风玻璃，保护格栅，声音传输投影屏幕和扬声器
- Patent Title: Sound transmission material, sound control plane structure including building use using the sound transmission material, windscreen for microphone, protective grille, sound transmission projection screen, and speaker
- Patent Title (中): 声音传输材料，声控平面结构，包括使用声传播材料的建筑物使用，麦克风挡风玻璃，保护格栅，声音传输投影屏幕和扬声器
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Application No.: US14005083Application Date: 2012-08-30
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Publication No.: US09218800B2Publication Date: 2015-12-22
- Inventor: Fukushi Kawakami , Takayuki Sano
- Applicant: Fukushi Kawakami , Takayuki Sano
- Applicant Address: JP Tokyo
- Assignee: Tomoegawa Co., Ltd.
- Current Assignee: Tomoegawa Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Jordan and Hamburg LLP
- Priority: CN2011198418 20110912
- International Application: PCT/JP2012/071988 WO 20120830
- International Announcement: WO2013/038915 WO 20130321
- Main IPC: D04H1/4234
- IPC: D04H1/4234 ; G10K11/162 ; G10K11/18 ; D04H1/46 ; E04B1/80 ; E04B1/99 ; H04B1/08 ; E04B1/84
Abstract:
A sound transmission material is made of fibers entangled with each other and has a self-standing property and a high performance sound transmission property, namely the TABER™ stiffness is not less than 5 mN×m, the bending resistance is not less than 100 mN, the porosity is not less than 50%, and the thickness is not more than 3 mm.
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