| 发明名称 |
SOUND ABSORBING DEVICE, ELECTRONIC DEVICE, AND IMAGE FORMING APPARATUS |
| 摘要 |
A sound absorbing device includes: a plurality of sound absorbing units. A frequency of sound absorbed by at least one of the sound absorbing units overlaps, at least partially, with a frequency of sound with a volume increased by installation of another sound absorbing unit. |
| 申请公布号 |
EP3138094(A1) |
申请公布日期 |
2017.03.08 |
| 申请号 |
EP20150785729 |
申请日期 |
2015.04.28 |
| 申请人 |
Ricoh Company, Ltd. |
发明人 |
ISHIDA, Masahiro;MATSUDA, Naoki |
| 分类号 |
G10K11/16;B41J29/08;G03G15/00;G03G21/00 |
主分类号 |
G10K11/16 |
| 代理机构 |
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