IP Library › Granted Patent US 7,386,145
Granted Patent B2
US 7,386,145 · App. 11/057,133 · Granted Jun 10, 2008

Loudspeaker system, method and apparatus of manufacturing the same

Assignee: Mitsubishi Denki Kabushiki Kaisha
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,386,145
App. No.
11/057,133
Granted
Jun 10, 2008
Kind
B2
Abstract

A liquefied paper material is used as raw materials. A paper frame member 1 supporting a vibrating plate is paper-skimmed and formed. On paper-skimming and forming, a central hole for use in voice coils, air-release hole 1 a releasing air pressure in a rear of the vibrating plate to outside due to vibration of the vibrating plate. A loudspeaker system is manufactured using the paper frame member 1.

Claims (4)

1. A loudspeaker system, comprising:

a vibrating plate, producing sound due to change in air pressure based on vibration; and

a paper-skimmer and formed paper frame member supporting the vibrating plate in a rear direction of the vibrating plate and having a hole releasing air pressure in a rear of the vibrating plate to outside due to vibration of the vibrating plate, wherein one or both sides of the paper frame member is surface-processed with resin films.

2. A loudspeaker system according to claim 1 , wherein the paper frame member contains thermoplastic resin fibers.

Continuity (2)
Division 1014823700
Related Publication 20050141745A1 · Jun 30, 2005