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公开(公告)号：US20140241550A1
公开(公告)日：2014-08-28
申请号：US14237438
申请日：2012-08-02
申请人： Tadao Sunahara , Masahide Tamura , Osamu Kawasaki , Masaru Tsuchiya , Ryuta Suzuki , Makoto Tsuruta , Nobuhiro Miwa , Hitoshi Sakamoto
发明人： Tadao Sunahara , Masahide Tamura , Osamu Kawasaki , Masaru Tsuchiya , Ryuta Suzuki , Makoto Tsuruta , Nobuhiro Miwa , Hitoshi Sakamoto
IPC分类号： H04R17/00
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.
摘要翻译： 能够提供较平坦且波动较小的声压频率特性的压电发声元件包括形成为具有圆形轮廓的圆板形状的隔膜。 压电元件固定在隔膜的底壁部分的一侧。 压电元件具有非对称八边形轮廓，包括一对彼此相对的长边部分，一对彼此相对的短边部分和四个连接侧部分。
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公开(公告)号：US09398377B2
公开(公告)日：2016-07-19
申请号：US14237438
申请日：2012-08-02
申请人： Tadao Sunahara , Masahide Tamura , Osamu Kawasaki , Masaru Tsuchiya , Ryuta Suzuki , Makoto Tsuruta , Nobuhiro Miwa , Hitoshi Sakamoto
发明人： Tadao Sunahara , Masahide Tamura , Osamu Kawasaki , Masaru Tsuchiya , Ryuta Suzuki , Makoto Tsuruta , Nobuhiro Miwa , Hitoshi Sakamoto
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.
摘要翻译： 能够提供较平坦且波动较小的声压频率特性的压电发声元件包括形成为具有圆形轮廓的圆板形状的隔膜。 压电元件固定在隔膜的底壁部分的一侧。 压电元件具有非对称八边形轮廓，包括一对彼此相对的长边部分，一对彼此相对的短边部分和四个连接侧部分。
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公开(公告)号：US08933174B2
公开(公告)日：2015-01-13
申请号：US12598600
申请日：2008-05-23
申请人： Nobuhiro Miwa , Kenji Shachi
发明人： Nobuhiro Miwa , Kenji Shachi
CPC分类号： C08F8/04 , C08L23/06 , C08L23/10 , C08L53/02 , C08L53/025 , C08F297/02 , C08F212/08 , C08L2666/02 , C08L2666/24 , C08L2666/04
摘要： A thermoplastic polymer composition has good flexibility, lightweight properties, moldability, and heat resistance, and in particular, is excellent in wear resistance. The thermoplastic polymer composition includes: at least one block copolymer (a) selected from among an α-methylstyrene based block copolymer having a number average molecular weight of 30,000 to 500,000 and a hydrogenated product thereof, the α-methylstyrene based block copolymer including a polymer block A mainly composed of an α-methylstyrene unit and a polymer block B mainly composed of a conjugated diene unit; a propylene-based polymer (b); and an ethylene-based polymer (c) having a density of 0.94 g/cm3 or less, in a ratio satisfying the following inequalities (1) and (2): 0.1≦W(a)/[W(a)+W(b)+W(c)]≦0.8 (1) 1≦W(b)/W(c) (2) wherein W(a), W(b), and W(c) represent the masses of the block copolymer (a), the propylene-based polymer (b), and the ethylene-based polymer (c), respectively.
摘要翻译： 热塑性聚合物组合物具有良好的柔韧性，轻质性，成型性和耐热性，特别是耐磨性优异。 所述热塑性聚合物组合物包括：至少一种嵌段共聚物（a），其选自数均分子量为30,000〜500,000的α-甲基苯乙烯类嵌段共聚物及其氢化物，所述α-甲基苯乙烯类嵌段共聚物包含聚合物 嵌段A，主要由α-甲基苯乙烯单元和主要由共轭二烯单元组成的聚合物嵌段B组成; 丙烯类聚合物（b）; （1）和（2）的比例为0.94g / cm3以下的乙烯系聚合物（c）：0.1＆lt; 1l; W（a）/ [W（a）+ W （b）+ W（c）]＆nlE; 0.8（1）1＆nlE; W（b）/ W（c）（2）其中W（a），W（b）和W（c） 嵌段共聚物（a），丙烯类聚合物（b）和乙烯类聚合物（c）。
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公开(公告)号：US20100152386A1
公开(公告)日：2010-06-17
申请号：US12598600
申请日：2008-05-23
申请人： Nobuhiro Miwa , Kenji Shachi
发明人： Nobuhiro Miwa , Kenji Shachi
IPC分类号： C08L53/02
CPC分类号： C08F8/04 , C08L23/06 , C08L23/10 , C08L53/02 , C08L53/025 , C08F297/02 , C08F212/08 , C08L2666/02 , C08L2666/24 , C08L2666/04
摘要： A thermoplastic polymer composition has good flexibility, lightweight properties, moldability, and heat resistance, and in particular, is excellent in wear resistance. The thermoplastic polymer composition includes: at least one block copolymer (a) selected from among an α-methylstyrene based block copolymer having a number average molecular weight of 30,000 to 500,000 and a hydrogenated product thereof, the α-methylstyrene based block copolymer including a polymer block A mainly composed of an α-methylstyrene unit and a polymer block B mainly composed of a conjugated diene unit; a propylene-based polymer (b); and an ethylene-based polymer (c) having a density of 0.94 g/cm3 or less, in a ratio satisfying the following inequalities (1) and (2): 0.1≦W(a)/[W(a)+W(b)+W(c)]≦0.8 (1) 1≦W(b)/W(c) (2) wherein W(a), W(b), and W(c) represent the masses of the block copolymer (a), the propylene-based polymer (b), and the ethylene-based polymer (c), respectively.
摘要翻译： 热塑性聚合物组合物具有良好的柔韧性，轻质性，成型性和耐热性，特别是耐磨性优异。 所述热塑性聚合物组合物包括：至少一种嵌段共聚物（a），其选自数均分子量为30,000〜500,000的α-甲基苯乙烯类嵌段共聚物及其氢化物，所述α-甲基苯乙烯类嵌段共聚物包含聚合物 嵌段A，主要由α-甲基苯乙烯单元和主要由共轭二烯单元组成的聚合物嵌段B组成; 丙烯类聚合物（b）; （1）和（2）的比例为0.94g / cm3以下的乙烯系聚合物（c）：0.1＆lt; 1l; W（a）/ [W（a）+ W （b）+ W（c）]＆nlE; 0.8（1）1＆nlE; W（b）/ W（c）（2）其中W（a），W（b）和W（c） 嵌段共聚物（a），丙烯类聚合物（b）和乙烯类聚合物（c）。
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