Resources Contact Us Home
Method for manufacturing diaphragm for loudspeaker, diaphragm for loudspeaker made thereby, and loudspeaker using the same

Image Number 2 for United States Patent #7072485.

A meshed etching tunnel made of aluminum is disposed inside a cylindrical quartz reactive chamber, and speaker diaphragms are aligned inside the tunnel at a certain interval. Opposing electrodes are disposed outside the reactive chamber. Plasma is applied at low temperature to prevent heat deformation. Uniform wettability is also assured by the use of the meshed etching tunnel, achieving high productivity. Uniform wettability further stabilizes bonding and improves bonding strength of the speaker diaphragm onto the voice coil and edge, offering a speaker with improved input power durability.

  Recently Added Patents
Method of hydrothermal liquid phase sintering of ceramic materials and products derived therefrom
Fluid discrimination device
Randomly accessible visual information recording medium and recording method, and reproducing device and reproducing method
Biodegradable aliphatic-aromatic copolyester for use in nonwoven webs
Multi-state DC-DC converter having undirectional switches
Aluminum galvanic cell
Drive coil, measurement probe comprising the drive coil and methods utilizing the measurement probe
  Randomly Featured Patents
Keratinocytes attached to microcarriers for treatment of skin wounds
Wide-angle lens system
Somatostatin analogue compounds
Conduit setting implement
Bracket system for mounting retractable awnings
Security shield for padlock
Coplanar type polysilicon thin film transistor and method of manufacturing the same
Communication device
System, method and device for cloud-based content inspection for mobile devices
Crown for a finger ring