JPS55159698A - Diaphragm - Google Patents
DiaphragmInfo
- Publication number
- JPS55159698A JPS55159698A JP6819779A JP6819779A JPS55159698A JP S55159698 A JPS55159698 A JP S55159698A JP 6819779 A JP6819779 A JP 6819779A JP 6819779 A JP6819779 A JP 6819779A JP S55159698 A JPS55159698 A JP S55159698A
- Authority
- JP
- Japan
- Prior art keywords
- tannic acid
- modulus
- wave propagation
- propagation speed
- longitudinal wave
- Prior art date
- 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.)
- Granted
Links
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 abstract 4
- 239000001263 FEMA 3042 Substances 0.000 abstract 4
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 abstract 4
- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 abstract 4
- 229940033123 tannic acid Drugs 0.000 abstract 4
- 235000015523 tannic acid Nutrition 0.000 abstract 4
- 229920002258 tannic acid Polymers 0.000 abstract 4
- 239000000835 fiber Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 235000013311 vegetables Nutrition 0.000 abstract 2
- 238000010009 beating Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6819779A JPS55159698A (en) | 1979-05-31 | 1979-05-31 | Diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6819779A JPS55159698A (en) | 1979-05-31 | 1979-05-31 | Diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55159698A true JPS55159698A (en) | 1980-12-11 |
| JPH0116080B2 JPH0116080B2 (enrdf_load_stackoverflow) | 1989-03-22 |
Family
ID=13366814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6819779A Granted JPS55159698A (en) | 1979-05-31 | 1979-05-31 | Diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55159698A (enrdf_load_stackoverflow) |
-
1979
- 1979-05-31 JP JP6819779A patent/JPS55159698A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0116080B2 (enrdf_load_stackoverflow) | 1989-03-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A711 | Notification of change in applicant |
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| R150 | Certificate of patent (=grant) or registration of utility model |
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| LAPS | Cancellation because of no payment of annual fees |