发明授权
- 专利标题： Piezoelectric sound element
- 专利标题（中）： 压电声元件
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申请号： US14237438申请日： 2012-08-02
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公开(公告)号： US09398377B2公开(公告)日： 2016-07-19
- 发明人: Tadao Sunahara , Masahide Tamura , Osamu Kawasaki , Masaru Tsuchiya , Ryuta Suzuki , Makoto Tsuruta , Nobuhiro Miwa , Hitoshi Sakamoto
- 申请人： Tadao Sunahara , Masahide Tamura , Osamu Kawasaki , Masaru Tsuchiya , Ryuta Suzuki , Makoto Tsuruta , Nobuhiro Miwa , Hitoshi Sakamoto
- 申请人地址： JP Toyama-Shi JP Anjo
- 专利权人： HOKURIKU ELECTRIC INDUSTRY CO., LTD.,ANDEN CO., LTD.
- 当前专利权人： HOKURIKU ELECTRIC INDUSTRY CO., LTD.,ANDEN CO., LTD.
- 当前专利权人地址： JP Toyama-Shi JP Anjo
- 代理机构： Rankin, Hill & Clark LLP
- 优先权： JP2011-172986 20110808
- 国际申请： PCT/JP2012/069689 WO 20120802
- 国际公布： WO2013/021906 WO 20130214
- 主分类号： H04R25/00
- IPC分类号： H04R25/00 ; H04R17/00 ; G10K9/122
摘要：
A piezoelectric sound generating element capable of providing flatter and less fluctuated sound pressure frequency characteristics includes a diaphragm that is formed in a circular plate shape with a circular profile. A piezoelectric element is affixed to the side of a bottom wall portion of the diaphragm. The piezoelectric element has an asymmetric octagonal profile including a pair of long side portions opposing each other, a pair of short side portions opposing each other, and four connecting side portions.
公开/授权文献
- US20140241550A1 PEZOELECTRIC SOUND ELEMENT 公开/授权日：2014-08-28
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