JPS5754039B2 - - Google Patents
Info
- Publication number
- JPS5754039B2 JPS5754039B2 JP54014742A JP1474279A JPS5754039B2 JP S5754039 B2 JPS5754039 B2 JP S5754039B2 JP 54014742 A JP54014742 A JP 54014742A JP 1474279 A JP1474279 A JP 1474279A JP S5754039 B2 JPS5754039 B2 JP S5754039B2
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
- H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Laminated Bodies (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1474279A JPS55107396A (en) | 1979-02-09 | 1979-02-09 | Diaphragm for speaker |
DE2941644A DE2941644C2 (en) | 1978-10-17 | 1979-10-15 | Loudspeaker cone and process for their manufacture |
US06/085,204 US4291781A (en) | 1978-10-17 | 1979-10-16 | Speaker diaphragm and method of preparation of the same |
GB7935835A GB2037122B (en) | 1978-10-17 | 1979-10-16 | Speaker diaphragm and method of preparation of the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1474279A JPS55107396A (en) | 1979-02-09 | 1979-02-09 | Diaphragm for speaker |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55107396A JPS55107396A (en) | 1980-08-18 |
JPS5754039B2 true JPS5754039B2 (en) | 1982-11-16 |
Family
ID=11869560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1474279A Granted JPS55107396A (en) | 1978-10-17 | 1979-02-09 | Diaphragm for speaker |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55107396A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55121794A (en) * | 1979-03-13 | 1980-09-19 | Matsushita Electric Ind Co Ltd | Speaker diaphragm |
JP2001298791A (en) * | 2000-04-13 | 2001-10-26 | Sony Corp | Speaker and its manufacturing method |
US7913808B2 (en) | 2008-03-27 | 2011-03-29 | Bose Corporation | Waterproofing loudspeaker cones |
US8172035B2 (en) | 2008-03-27 | 2012-05-08 | Bose Corporation | Waterproofing loudspeaker cones |
CN103612425B (en) * | 2013-11-19 | 2015-05-06 | 大连天禄新材料有限公司 | Multilayer hemp/carbon fiber composite board with hamburger structure and manufacturing process of multilayer hemp/carbon fiber composite board |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5255518A (en) * | 1975-10-31 | 1977-05-07 | Fuji Photo Film Co Ltd | Production of speaker cone |
JPS5291417A (en) * | 1976-01-27 | 1977-08-01 | Nippon Columbia | Speaker vibrator plate |
-
1979
- 1979-02-09 JP JP1474279A patent/JPS55107396A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5255518A (en) * | 1975-10-31 | 1977-05-07 | Fuji Photo Film Co Ltd | Production of speaker cone |
JPS5291417A (en) * | 1976-01-27 | 1977-08-01 | Nippon Columbia | Speaker vibrator plate |
Also Published As
Publication number | Publication date |
---|---|
JPS55107396A (en) | 1980-08-18 |