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Class Information
Number: 181/170
Name: Acoustics > Diaphragm > Critically defined material or coating > Laminated type
Description: Subject matter comprising plural layers or surfaces, adhered or cohered to each other.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7546897 |
Speaker diaphragm and method of manufacturing speaker diaphragm |
Jun. 16, 2009 |
| 7467686 |
Speaker diaphragms, manufacturing methods of the same, and dynamic speakers |
Dec. 23, 2008 |
| 7332215 |
Resin-molded component and method for manufacturing thereof as well as diaphragm for loudspeaker |
Feb. 19, 2008 |
| 6912288 |
Piezoelectric electroacoustic transducer and manufacturing method of the same |
Jun. 28, 2005 |
| 6814181 |
Electrically conductive damper device for speaker |
Nov. 9, 2004 |
| 6804371 |
Speaker having a laser vibration diaphragm |
Oct. 12, 2004 |
| 6790506 |
Carbon fiber layer for acoustic diaphragm |
Sep. 14, 2004 |
| 6742622 |
Molded foam resin, process for forming the same and speaker diaphragm consisting of the same |
Jun. 1, 2004 |
| 6644182 |
Method of producing cone diaphragm having color patterns |
Nov. 11, 2003 |
| 6560348 |
Contact connections |
May. 6, 2003 |
| 6453049 |
Acoustic diaphragm |
Sep. 17, 2002 |
| 6427017 |
Piezoelectric diaphragm and piezoelectric speaker |
Jul. 30, 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 |
| 6275598 |
Sound reproduction device |
Aug. 14, 2001 |
| 6247551 |
Panel-form loudspeaker |
Jun. 19, 2001 |
| 6237716 |
Standard-sized vibrating diaphragm speaker structure |
May. 29, 2001 |
| 6097829 |
Fiber-honeycomb-fiber sandwich speaker diaphragm and method |
Aug. 1, 2000 |
| 6039145 |
Diaphragm-edge integral moldings for speakers, acoustic transducers comprising same and method for fabricating same |
Mar. 21, 2000 |
| 6002648 |
Slotted cylinder marine siesmic method and source |
Dec. 14, 1999 |
| 5796054 |
Loudspeaker diaphragm |
Aug. 18, 1998 |
| 5793002 |
Loudspeaker vibrating diaphragm and methods for its production |
Aug. 11, 1998 |
| 5744761 |
Diaphragm-edge integral moldings for speakers and acoustic transducers comprising same |
Apr. 28, 1998 |
| 5473121 |
Acoustic vibration plate |
Dec. 5, 1995 |
| 5425107 |
Planar-type loudspeaker with dual density diaphragm |
Jun. 13, 1995 |
| 5380960 |
Process for the preparation of films or diaphragms for acoustic applications |
Jan. 10, 1995 |
| 5352506 |
Diaphragm |
Oct. 4, 1994 |
| 5274199 |
Acoustic diaphragm and method for producing same |
Dec. 28, 1993 |
| 5259036 |
Diaphragm for dynamic microphones and methods of manufacturing the same |
Nov. 2, 1993 |
| 5241140 |
Speaker diaphragm |
Aug. 31, 1993 |
| 5205897 |
Method of bonding loudspeaker diaphragm |
Apr. 27, 1993 |
| 5206466 |
Diaphragm for speaker |
Apr. 27, 1993 |
| 5198624 |
Audio transducer with controlled flexibility diaphragm |
Mar. 30, 1993 |
| 5162619 |
Diaphragm for a loudspeaker |
Nov. 10, 1992 |
| 5148492 |
Diaphragm of dynamic microphone |
Sep. 15, 1992 |
| 5080743 |
Process for preparation of a wholly carbonaceous diaphragm for acoustic equipment use |
Jan. 14, 1992 |
| 5072806 |
Diaphragm for acoustic equipment |
Dec. 17, 1991 |
| 5064019 |
Electroacoustic diaphragm and method for making same |
Nov. 12, 1991 |
| 4996119 |
Speaker cone plate and method of forming |
Feb. 26, 1991 |
| 4939784 |
Loudspeaker structure |
Jul. 3, 1990 |
| 4907207 |
Ultrasound transducer having astigmatic transmission/reception characteristic |
Mar. 6, 1990 |
| 4847908 |
Loudspeaker having a two-part diaphragm for use as a car loudspeaker |
Jul. 11, 1989 |
| 4817165 |
Acoustic speaker device with a diaphragm having a spider web type core |
Mar. 28, 1989 |
| 4772513 |
Method for forming a hard carbon thin film on article and applications thereof |
Sep. 20, 1988 |
| 4699242 |
Magnetic speaker |
Oct. 13, 1987 |
| 4674592 |
Diaphragm for use in electro-acoustic transducer |
Jun. 23, 1987 |
| 4646874 |
Loudspeaker diaphragm |
Mar. 3, 1987 |
| 4620606 |
Loudspeaker of plane diaphragm type |
Nov. 4, 1986 |
| 4562899 |
Diaphragm of electroacoustic transducer and method of manufacturing the same |
Jan. 7, 1986 |
| 4552243 |
Diaphragm material for acoustical transducer |
Nov. 12, 1985 |
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