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Class Information
Number: 181/167
Name: Acoustics > Diaphragm > Critically defined material or coating
Description: Subject matter wherein the diaphragm is constructed of specific material or the diaphragm is covered or saturated, at least in part, with extraneous material.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7344001 |
Speaker diaphragm and speaker structure |
Mar. 18, 2008 |
| 7332215 |
Resin-molded component and method for manufacturing thereof as well as diaphragm for loudspeaker |
Feb. 19, 2008 |
| 7306073 |
Electroacoustic transducer comprising a membrane with a middle area comprising stiffening grooves |
Dec. 11, 2007 |
| 7290639 |
Method for manufacturing speaker-use center cap |
Nov. 6, 2007 |
| 7280668 |
Ceramic metal matrix diaphragm for loudspeakers |
Oct. 9, 2007 |
| 6929092 |
Speaker diaphragm |
Aug. 16, 2005 |
| 6857501 |
Method of forming parylene-diaphragm piezoelectric acoustic transducers |
Feb. 22, 2005 |
| 6804371 |
Speaker having a laser vibration diaphragm |
Oct. 12, 2004 |
| 6748090 |
Multi-mode radiator panels |
Jun. 8, 2004 |
| 6742622 |
Molded foam resin, process for forming the same and speaker diaphragm consisting of the same |
Jun. 1, 2004 |
| 6740202 |
Speaker diaphragm and method of manufacturing same |
May. 25, 2004 |
| 6694039 |
Loudspeaker |
Feb. 17, 2004 |
| 6644182 |
Method of producing cone diaphragm having color patterns |
Nov. 11, 2003 |
| 6640925 |
Loudspeaker diaphragm and method of manufacture thereof |
Nov. 4, 2003 |
| 6591938 |
Speaker diaphragm |
Jul. 15, 2003 |
| 6590993 |
Panel-shaped loudspeaker |
Jul. 8, 2003 |
| 6554962 |
Loudspeaker diaphragm |
Apr. 29, 2003 |
| 6543573 |
Speaker unit, speaker system, and speaker diaphragm manufacturing method |
Apr. 8, 2003 |
| 6510919 |
Facing system for a flat panel radiator |
Jan. 28, 2003 |
| 6454046 |
Synchronous dustproof cover structure for sound membrane |
Sep. 24, 2002 |
| 6390232 |
Speaker cone assembly |
May. 21, 2002 |
| 6378649 |
Speaker member and manufacturing method thereof |
Apr. 30, 2002 |
| 6347683 |
Loudspeaker and process for manufacturing a loudspeaker |
Feb. 19, 2002 |
| 6334504 |
Molded foam resin, process for forming the same and speaker diaphragm consisting of the same |
Jan. 1, 2002 |
| 6332508 |
Loudspeaker and method for producing the same |
Dec. 25, 2001 |
| 6327372 |
Ceramic metal matrix diaphragm for loudspeakers |
Dec. 4, 2001 |
| 6275598 |
Sound reproduction device |
Aug. 14, 2001 |
| 6266427 |
Damped structural panel and method of making same |
Jul. 24, 2001 |
| 6243473 |
Laptop computer with loudspeaker(s) |
Jun. 5, 2001 |
| 6215882 |
Panel-form loudspeaker |
Apr. 10, 2001 |
| 6215881 |
Ceiling tile loudspeaker |
Apr. 10, 2001 |
| 6058196 |
Panel-form loudspeaker |
May. 2, 2000 |
| 6039145 |
Diaphragm-edge integral moldings for speakers, acoustic transducers comprising same and method for fabricating same |
Mar. 21, 2000 |
| 5920040 |
Speaker diaphragm |
Jul. 6, 1999 |
| 5907133 |
Device for electroacoostic diffusion, with diaphragms, spiders and horns of balsa wood or mixtures thereof |
May. 25, 1999 |
| 5875253 |
Loudspeaker and a method for producing the same |
Feb. 23, 1999 |
| 5847332 |
Polycarbonate-based radially arcuated speaker cone |
Dec. 8, 1998 |
| 5796054 |
Loudspeaker diaphragm |
Aug. 18, 1998 |
| 5744761 |
Diaphragm-edge integral moldings for speakers and acoustic transducers comprising same |
Apr. 28, 1998 |
| 5663220 |
Acoustic vibrational material from fiber-reinforced polybutadiene-modified epoxy resin |
Sep. 2, 1997 |
| 5637819 |
Percussion instrument damping |
Jun. 10, 1997 |
| 5606626 |
Speaker system with an anion generator and television using the speaker system |
Feb. 25, 1997 |
| 5587562 |
Diaphragm for electro-dynamic type loudspeakers |
Dec. 24, 1996 |
| 5581053 |
Diaphragm of electroacoustic transducer and method of manufacturing the same |
Dec. 3, 1996 |
| 5406038 |
Shielded speaker |
Apr. 11, 1995 |
| 5380960 |
Process for the preparation of films or diaphragms for acoustic applications |
Jan. 10, 1995 |
| 5352506 |
Diaphragm |
Oct. 4, 1994 |
| 5329072 |
Acoustic diaphragm |
Jul. 12, 1994 |
| 5304746 |
Reduction of standing waves and intermodulation distortion in electro-acoustic transducer |
Apr. 19, 1994 |
| 5205897 |
Method of bonding loudspeaker diaphragm |
Apr. 27, 1993 |
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