| 发明名称 |
SOUND ABSORBING DEVICE, ELECTRONIC DEVICE, AND IMAGE FORMING APPARATUS |
| 摘要 |
A sound absorbing device including a Helmholtz resonator also includes a projection part having a shape of protruding from an outer wall surface of a communicating part forming plate among the communicating part forming plate and a cavity forming member that are cavity part forming members forming a cavity part of the Helmholtz resonator, and surrounding an opening of a communicating part that causes the cavity part to communicate with the outside. |
| 申请公布号 |
US2015243274(A1) |
申请公布日期 |
2015.08.27 |
| 申请号 |
US201514630789 |
申请日期 |
2015.02.25 |
| 申请人 |
HIRAKAWA Kouta;MURANO Junichi;ASANUMA Shoji;SHIMADA Toshihiro;ENDO Tsuyoshi;ISHIMITSU Hiroki;ISHIDA Masahiro;MATSUDA Naoki |
发明人 |
HIRAKAWA Kouta;MURANO Junichi;ASANUMA Shoji;SHIMADA Toshihiro;ENDO Tsuyoshi;ISHIMITSU Hiroki;ISHIDA Masahiro;MATSUDA Naoki |
| 分类号 |
G03G21/00;E04B1/82;H04B15/00 |
主分类号 |
G03G21/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A sound absorbing device including a Helmholtz resonator, the sound absorbing device comprising:
a projection part having a shape of protruding from an outer wall surface of a cavity part forming member that forms a cavity part of the Helmholtz resonator and surrounding an opening of a communicating part that causes the cavity part to communicate with outside. |
| 地址 |
Tokyo JP |
