| Patents for H04R 7 - Diaphragms for electromechanical transducers; Cones (6,555) |
|---|
| 10/16/1997 | DE19614579A1 Conical membrane for moving coil woofer type loudspeaker |
| 10/09/1997 | WO1997037513A1 Device for electroacoustic diffusion, with diaphragms, spiders and horns of balsa wood or mixtures thereof |
| 09/25/1997 | DE19610997A1 Elektrodynamischer Schallwandler mit Magnetspaltenabdichtung An electrodynamic transducer with magnetic seal columns |
| 09/24/1997 | EP0533810B1 Microwave antennas |
| 09/17/1997 | CN1159726A Vibration membrane for loudspeaker |
| 09/16/1997 | US5668886 Loudspeaker structure |
| 09/12/1997 | WO1997033452A1 Cone type loudspeaker, its platy damper, and intermediate support |
| 09/03/1997 | EP0793216A2 Pressure chamber driver |
| 09/02/1997 | US5664024 Loudspeaker |
| 09/02/1997 | US5663220 Acoustic vibrational material from fiber-reinforced polybutadiene-modified epoxy resin |
| 08/13/1997 | CN2259734Y Antitheft alarming device with pager as media |
| 08/07/1997 | WO1997028427A1 Method and apparatus for measuring dispensed doses of flowable material |
| 08/07/1997 | WO1997028129A1 Aminoheterocyclic derivatives as antithrombotic or anticoagulant agents |
| 08/07/1997 | WO1997028123A1 Distamycin derivatives, process for preparing them, and their use as antitumor and antiviral agents |
| 07/29/1997 | US5652801 Resonance damper for piezoelectric transducer |
| 07/10/1997 | WO1997009842A3 Acoustic device |
| 07/09/1997 | EP0783238A2 Method for the production and application of annular suspension edges of lound speaker diaphragms |
| 07/02/1997 | EP0782370A2 Speaker for radiating sound waves in all directions relative to a speaker-supporting surface |
| 06/19/1997 | WO1997022225A1 Sound reproduction device or microphone |
| 06/11/1997 | EP0778721A2 Damping mechanism for loudspeaker membranes |
| 06/11/1997 | EP0777952A1 Electro-acoustic transducer |
| 06/11/1997 | CN1151675A Plane corrugated vibrating membrane loudspeaker |
| 06/10/1997 | US5638456 Piezo speaker and installation method for laptop personal computer and other multimedia applications |
| 05/29/1997 | WO1997009845A3 Loudspeakers comprising panel-form acoustic radiating elements |
| 05/22/1997 | WO1997018688A1 Central or circumferential suspension for the moving assembly of a moving-coil loudspeaker |
| 05/15/1997 | WO1997017820A1 Piezoelectric transducers |
| 05/15/1997 | WO1997017818A1 Piezo speaker for improved passenger cabin audio systems |
| 05/14/1997 | EP0772953A2 Piezo speaker and installation method for laptop personal computer and other multimedia applications |
| 05/13/1997 | US5629987 Loudspeaker system with closed housing for improved bass reproduction |
| 05/07/1997 | EP0772373A2 Arrangement for radiating acoustic waves |
| 05/06/1997 | US5627903 Variable geometry electromagnetic transducer |
| 05/06/1997 | US5627321 Method of straining a diaphragm and a device therefor |
| 05/01/1997 | WO1997009856A3 A portable compact disc player |
| 05/01/1997 | WO1997009854A3 Personal computers |
| 05/01/1997 | WO1997009852A3 Visual display means incorporating loudspeakers |
| 05/01/1997 | WO1997009841A3 Greetings or the like card |
| 04/29/1997 | US5625701 Loudspeaker diaphragm attaching |
| 04/23/1997 | EP0663136B1 Diffusing volume electroacoustic transducer |
| 04/16/1997 | CN2252468Y Ceramic loudspeaker box |
| 04/10/1997 | DE19626813A1 Prodn. of edge bead for loudspeaker membrane |
| 04/09/1997 | CN2251850Y Diaphragm for loudspeaker |
| 04/08/1997 | US5619019 Damper for loudspeaker |
| 04/03/1997 | WO1997009853A3 Display screens incorporating loudspeakers |
| 04/03/1997 | WO1997009840A3 Loudspeakers comprising panel-form acoustic radiating elements |
| 03/25/1997 | US5615275 Planar diaphragm loudspeaker with counteractive weights |
| 03/19/1997 | CN1145569A Non-paper pulp base loudspeaker sonic bowl |
| 03/13/1997 | WO1997009862A1 Panel-form microphones |
| 03/13/1997 | WO1997009861A1 Inertial vibration transducers |
| 03/13/1997 | WO1997009859A1 Inertial vibration transducers |
| 03/13/1997 | WO1997009858A1 Vibration transducers |
| 03/13/1997 | WO1997009857A2 Musical instruments incorporating loudspeakers |
| 03/13/1997 | WO1997009856A2 A portable compact disc player |
| 03/13/1997 | WO1997009855A2 Packaging incorporating loudspeakers |
| 03/13/1997 | WO1997009854A2 Personal computers |
| 03/13/1997 | WO1997009853A2 Display screens incorporating loudspeakers |
| 03/13/1997 | WO1997009852A2 Visual display means incorporating loudspeakers |
| 03/13/1997 | WO1997009849A1 Loudspeakers with panel-form acoustic radiating elements |
| 03/13/1997 | WO1997009848A1 Noticeboards incorporating loudspeakers |
| 03/13/1997 | WO1997009847A1 Panel-form loudspeakers |
| 03/13/1997 | WO1997009846A1 Panel-form loudspeakers |
| 03/13/1997 | WO1997009845A2 Loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | WO1997009844A1 Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | WO1997009843A1 Loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | WO1997009842A2 Acoustic device |
| 03/13/1997 | WO1997009841A2 Greetings or the like card |
| 03/13/1997 | WO1997009840A2 Loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | WO1997009698A1 A vending machine |
| 03/13/1997 | CA2234944A1 Display screens incorporating loudspeakers |
| 03/13/1997 | CA2230704A1 Packaging |
| 03/13/1997 | CA2230702A1 Loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | CA2230701A1 Panel-form loudspeakers |
| 03/13/1997 | CA2230461A1 Panel-form loudspeakers |
| 03/13/1997 | CA2230459A1 A vending machine |
| 03/13/1997 | CA2230449A1 Panel-form microphones |
| 03/13/1997 | CA2230444A1 Greetings or the like card |
| 03/13/1997 | CA2230438A1 Loudspeakers with panel-form acoustic radiating elements |
| 03/13/1997 | CA2230234A1 Noticeboards incorporating loudspeakers |
| 03/13/1997 | CA2230161A1 Loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | CA2230155A1 Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | CA2230154A1 Musical instruments incorporating loudspeakers |
| 03/13/1997 | CA2230104A1 A portable compact disc player |
| 03/13/1997 | CA2230075A1 Visual display means incorporating loudspeakers |
| 03/13/1997 | CA2230064A1 Personal computers |
| 03/13/1997 | CA2230053A1 Loudspeakers comprising panel-form acoustic radiating elements |
| 03/13/1997 | CA2229857A1 Inertial vibration transducers |
| 03/13/1997 | CA2229856A1 Vibration transducers |
| 03/12/1997 | EP0762802A2 Multi-point drive type speaker |
| 03/12/1997 | EP0760996A1 Multimedia personal computer with active noise reduction and piezo speakers |
| 03/12/1997 | CN1145015A Louderspeaker |
| 03/06/1997 | DE19633097A1 Miniaturised electro=acoustic transducer |
| 03/04/1997 | US5608810 Loudspeaker structure |
| 02/26/1997 | EP0759260A1 Resonance damper for piezoelectric transducer |
| 02/11/1997 | US5602931 Connection line |
| 02/04/1997 | US5599563 Tool for molding a surround onto a loudspeaker cone |
| 01/30/1997 | WO1997003537A1 Improved surround for a loudspeaker |
| 01/02/1997 | DE19523974A1 Prodn. of acoustic function layer of transformer |
| 01/01/1997 | CN2244276Y Machine mounted changer with volume control |
| 12/25/1996 | CN1138816A Structural component of speaker, speaker and its mfg. method |
| 12/24/1996 | US5587562 Diaphragm for electro-dynamic type loudspeakers |
| 12/18/1996 | EP0749265A1 High frequency loudspeaker |