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51. 发明专利

JPS51115624A METHOD OF MAKING ELECTRODES ACTIVATED WITH CATALYST 失效
公开(公告)号：JPS51115624A
公开(公告)日：1976-10-12
申请号：JP4068775
申请日：1975-04-02
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOBAYASHI TERUO , YAMAMOTO KAZUMASA
IPC分类号： H01M4/88 , G01N27/409 , H01M4/04 , H01M8/12

52. 发明专利

JPH0455040B2 失效
公开(公告)号：JPH0455040B2
公开(公告)日：1992-09-02
申请号：JP20405383
申请日：1983-10-31
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOBAYASHI TERUO , URA KAZUKI , KAWASAKI KOZO
IPC分类号： H04R1/10 , H04R1/22 , H04R1/28 , H04R17/00

53. 发明专利

JPH0349239B2 失效
公开(公告)号：JPH0349239B2
公开(公告)日：1991-07-26
申请号：JP18640282
申请日：1982-10-22
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKEDA KOJI , YAMAMOTO TOORU , KOBAYASHI TERUO
IPC分类号： C08F283/00 , C08F283/06 , H04R7/02

54. 发明专利

JPH0251320B2 失效
公开(公告)号：JPH0251320B2
公开(公告)日：1990-11-07
申请号：JP19697682
申请日：1982-11-10
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMAMOTO TOORU , TAKEDA KOJI , KOBAYASHI TERUO
IPC分类号： C08L23/18 , C08K3/00 , C08K3/02 , C08K3/04 , C08K3/34 , C08L7/00 , C08L21/00 , C08L23/00 , C08L101/00 , H04R7/02

55. 发明专利

JPH0234520B2 失效
公开(公告)号：JPH0234520B2
公开(公告)日：1990-08-03
申请号：JP10495882
申请日：1982-06-17
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMAMOTO TOORU , TAKEDA KOJI , KOBAYASHI TERUO
IPC分类号： H04R7/02

56. 发明专利

JPH0156600B2 失效
公开(公告)号：JPH0156600B2
公开(公告)日：1989-11-30
申请号：JP3603682
申请日：1982-03-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMAMOTO TOORU , TAKEDA KOJI , KOBAYASHI TERUO
IPC分类号： H04R7/02

57. 发明专利

JPH01221999A MANUFACTURE OF PIEZO-ELECTRIC DIAPHRAGM 失效
公开(公告)号：JPH01221999A
公开(公告)日：1989-09-05
申请号：JP4802288
申请日：1988-03-01
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOBAYASHI TERUO , URA KAZUKI , TANI KENROKU
IPC分类号： H04R17/00
摘要： PURPOSE:To reduce the cost of a piezoelectric diaphragm by uniting a thin plate of a ceramic piezo-electric substance and ceramic thin plate to one body by baking at a high temperature after their surfaces, to which electrode paste is applied, are closely contacted with and firmly fixed to each other. CONSTITUTION:After electrode paste is applied to at least one surfaces of a thin plate 1 of a ceramic piezo-electric substance and ceramic thin plate 7, the thin plates 1 and 7 are united to one body by baking at a high temperature after their surfaces, to which the electrode paste is applied, are closely stuck to each other. When a piezo-electric diaphragm is produced in such way, changes in physical properties at the joining surface can be made smaller even in a high-temperature atmosphere and variation of the resonance frequency and converting efficiency can be reduced.

58. 发明专利

JPH01221967A HANDSET FOR TELEPHONE 失效
公开(公告)号：JPH01221967A
公开(公告)日：1989-09-05
申请号：JP4802688
申请日：1988-03-01
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOBAYASHI TERUO , KAWASAKI KOZO
IPC分类号： H04M1/03 , H04R17/00
摘要： PURPOSE:To eliminate the variation of the acoustic characteristic of a handset for telephone and, at the same time, to reduce the number of used parts by providing a ring-like projecting section at the inside bottom of the receiving or transmitting part or at both of the receiving and transmitting parts of the lower case of the handset and fixing a piezo-electric vibrator and back air chamber plate to a stepped section provided at the middle part of the projecting section. CONSTITUTION:Sound discharging holes 15 are provided to the lower case 7 of a handset and a ring-like projecting section 12 provided with a stepped section 13 at the middle part is formed at the part of the holes 15 inside the lower case. Then the peripheral section of a metallic plate 17 to which a ceramic piezo-electric body 16 is stuck is put on the stepped section 13 directly or with an elastic buffer material in between and a back air chamber plate 18 is provided on the metallic plate 17. Thereafter, the plates 17 and 18 are fixed to the fixing section 14 of the projecting section 12 by deforming by heating the edge of the section 12. After fixing the plates 17 and 18, two lead wires 19 for inputting electric signals are fitted to the piezo-electric body 16 and metallic plate 17 and connected to an input-output connector 9 provided on a transmitter 9 side on the outside through a recessed section 20 provided at a stepped section on the outer periphery of the back air chamber plate 16. In addition, small holes 18 are installed to the plate 18 and an acoustic resistance material 22 is stuck to the holes 21 so as to control incoming and outgoing acoustic waves.

59. 发明专利

JPH0119316B2 失效
公开(公告)号：JPH0119316B2
公开(公告)日：1989-04-11
申请号：JP8907481
申请日：1981-06-10
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKAYAMA SATOSHI , MURATA KOSAKU , KOBAYASHI TERUO , YAMAMOTO KAZUMASA
IPC分类号： H04R7/08 , H04R7/10

60. 发明专利

JPS63102498A PIEZO-ELECTRIC ELECTROACOUSTIC TRANSDUCER 失效
公开(公告)号：JPS63102498A
公开(公告)日：1988-05-07
申请号：JP24775186
申请日：1986-10-17
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOBAYASHI TERUO
IPC分类号： H04R17/10
摘要： PURPOSE:To make a piezo electric electroacoustic transducer usable even for persons who have difficulty in hearing without making the constitution larger in size, by providing coil for leakage flux in the front case and connecting the coils with a piezo-electric body. CONSTITUTION:Coil 23 is provided in a front case 21 provided with a sound hole 22 and the coil is connected in series with a ceramic piezo-electric body 24 stuck to a diaphragm 25 by means of lead wires 28 and 29. The diaphragm plate 25 vibrates in response to electric signals from input terminals 30 and 31 and, at the same time, magnetic fluxes are leaked by the coils 23 and a hearing aid responds to the magnetic fluxes. Thus a piezo-electric electroacoustic transducer which is small in size and thin in thickness and can be used even by a person who has difficulty in bearing and uses a hearing aid is obtained without making the constitution larger.

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