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US 2016/0111075 A1Published application
Acoustic device, and electronic device and image forming apparatus incorporating same
AssigneeRicoh Company, Ltd.
InventorsMasahiro Ishida, Naoki Matsuda
Life of this patent
Estimating the term…
Abstract
An acoustic device includes an opening; a flange forming the opening; a first member including the opening and the flange; and a second member joined to the first member, thereby forming a cavity. The second member is formed of a material with a density lower than a material of the first member.
Claims19
1-14. (canceled)
An electronic device comprising:
- an external wall;
- and
- an acoustic device including,
- a first member having an opening therein formed by a protrusion, and
- a second member joined to the first member, thereby forming a cavity therebetween, the second member being a part of the external wall.
2 more elements
An image forming apparatus comprising:
- an external wall;
- and
- an acoustic device including,
- a first member having an opening therein formed by a protrusion, and
- a second member joined to the first member, thereby forming a cavity therebetween, the second member being a part of the external wall.
2 more elements
Dependencies are inferred from the claim text.