Invention Grant
- Patent Title: Sound absorber, electronic device with sound absorbing device, and image forming apparatus with sound absorber
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Application No.: US15415058Application Date: 2017-01-25
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Publication No.: US10540953B2Publication Date: 2020-01-21
- Inventor: Masahiro Ishida , Naoki Matsuda , Hiroshi Ishii , Kohta Takenaka , Keisuke Shimizu , Shogo Sakamoto , Takayuki Isaka
- Applicant: Masahiro Ishida , Naoki Matsuda , Hiroshi Ishii , Kohta Takenaka , Keisuke Shimizu , Shogo Sakamoto , Takayuki Isaka
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Harness, Dickey and Pierce, P.L.C.
- Priority: JP2016-015890 20160129; JP2016-231140 20161129
- Main IPC: G10K11/172
- IPC: G10K11/172
Abstract:
A sound absorber includes at least one cavity and at least one mouth to communicate the at least one cavity with an outside of the sound absorber. The at least one cavity includes a top surface, a bottom surface, and a side wall. The top surface includes the mouth. The bottom surface opposes the top surface. The side wall is extended to connect the top surface with the bottom surface. At least one of the top surface and the bottom surface is inclined with respect to the side wall.
Public/Granted literature
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