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1. 发明专利

JPH0265398A ACOUSTIC OSCILLATING MEMBER AND ITS MANUFACTURE 失效
公开(公告)号：JPH0265398A
公开(公告)日：1990-03-06
申请号：JP21511288
申请日：1988-08-31
申请人： PIONEER ELECTRONIC CORP , PIONEER CONE CORP
发明人： ITO MINORU
IPC分类号： H04R7/02
摘要： PURPOSE:To obtain high rigidity and high internal loss and to attain reproducing up to a high frequency range by executing the radial orientation of titanate potassium fiber by specified quantity in thermoplastic synthetic resin. CONSTITUTION:A composite material, which is composed of by uniformly dispersing the titanate potassium fiber in the thermoplastic synthetic resin, is injection molded into a metal mold having a thin plate cavity, for which a gate is provided in a central part. Then, an acoustic oscillating member is manufactured by punching and removing a gate peripheral part at least. The composite material is obtained by mixing the 3-100 weight part of the titanate potassium fiber to the 100 weight part of the thermoplastic synthetic resin and uniformly dispersing the fiber. When the mixing quantity is small, a rigidity improving effect is small. When the mixing quantity is too much, workability is lost. Then, coloring pigment or a charging material such as graphite or mica, etc., can be samely mixed in the range of the 3-100 weight part as needed.

2. 发明专利

JPH01223900A MANUFACTURE OF ACOUSTIC DIAPHRAGM MEMBER 失效
公开(公告)号：JPH01223900A
公开(公告)日：1989-09-06
申请号：JP5041988
申请日：1988-03-03
申请人： PIONEER ELECTRONIC CORP , PIONEER CONE CORP
发明人： ITO MINORU
IPC分类号： H04R7/02 , H04R31/00
摘要： PURPOSE:To attain painting with high accuracy by arranging a thermoplastic resin film having a pattern into a forming die for injection molding, injecting the molten thermoplastic resin in the forming die so as to apply injection molding. CONSTITUTION:A polypropylene film is used as a thermoplastic resin film, a corona discharge processing is applied as required to apply the surface polarization. Then pattern print such as line drawing, blur or color grouping is applied on the film. For example, gravule print is applied by a print such as dot pattern. In the painting by the print, a deformed pattern is applied by a painting device so as to apply a prescribed pattern in a cubic curved face finally such as a cone shaped surface. After the thermoplastic resin film having the pattern is arranged in a forming die for injection forming, the molten thermoplastic resin is injected in the forming die to apply injection molding. Thus, the acoustic diaphragm with accurate painting and high degree of freedom in external appearance and design is obtained.

3. 发明专利

JPS62281700A DIAPHRAGM WITH EDGE FOR SPEAKER 失效
公开(公告)号：JPS62281700A
公开(公告)日：1987-12-07
申请号：JP12376486
申请日：1986-05-30
申请人： PIONEER ELECTRONIC CORP , PIONEER CONE CORP
发明人： ITO MINORU
IPC分类号： H04R7/02 , H04R7/18
摘要： PURPOSE:To endure long time use at a high temperature to ensure less deterioration of performance with respect to a change in temperature and to meet required characteristics as a speaker by molding a diaphragm and an edge with a sheet made of polyether, ether and ketone and integrally forming them. CONSTITUTION:Polyether, ether and ketone are molded in a sheetlike shape at the temperature of about 350 deg.C and made into a sheet with optional thickness. The PEEK sheet is heated in the required shape at the molding temperature of about 230 deg.C, and pressurized, after which it is cooled, taken out of a mold and made in shapes for the diaphragm and edge. They have extremely high thermal deformation temperature, low density and high internal loss, and therefore they are perfectly suitable for a speaker loaded onto a vehicle which is used at a high temperature for a long time. Since the PEEK itself has its stable coefficient of line expansion with respect to a change in temperature and a stable change in Young modulus, the deterioration of its performance due to the temperature change is minimized even if it is used at a high temperature for a long time.

4. 发明专利

JPH09163488A DIAPHRAGM FOR SPEAKER 失效
公开(公告)号：JPH09163488A
公开(公告)日：1997-06-20
申请号：JP34552995
申请日：1995-12-08
申请人： PIONEER ELECTRONIC CORP , PIONEER CONE CORP
发明人： TAKAHASHI MASANORI , SHIBATA SHIGEO , ITO MINORU
IPC分类号： C08L23/10 , C08L23/00 , H04R7/00 , H04R7/02
摘要： PROBLEM TO BE SOLVED: To improve the physical property as a speaker, to increase the adhesive strength and to form diversified characters or patterns on a diaphragm by vapor-depositting a metal or a metallic compound onto part or entirety of the surface of a base of the diaphragm so as to laminate a vapor-deposition layer thereon. SOLUTION: A base 2 for the speaker diaphragm 1 is made of a plastic material consisting mainly of a pulypropylene and a metal or a metallic compound is vaport-depositted onto part or all of a surface of the base 2 of the diaphragm to form a vapor-deposition layer. Thus, diversified characters or patterns or the like are expressed onto the diaphragm 1 making up of a cone diaphragm and a center cap or the like. Furthermore, the diaphragm 1 forms a double layer consisting of the base 2 and the vapor-deposition layer 3, since the stiffness is enhanced and the internal loss is increased, the performance as a speaker is improved. Moreover, since the diaphragm 1 is made of the base with water-proof performance and the vapor-deposition layer, the water- proof performance is maintained. Moreover, ease of sure adhesion is obtained.

5. 发明专利

JPH01223898A ACOUSTIC DIAPHRAGM MEMBER AND ITS MANUFACTURE 失效
公开(公告)号：JPH01223898A
公开(公告)日：1989-09-06
申请号：JP5041688
申请日：1988-03-03
申请人： PIONEER ELECTRONIC CORP , PIONEER CONE CORP
发明人： ITO MINORU
IPC分类号： H04R7/02 , H04R31/00
摘要： PURPOSE:To maintain surface glitter carrying various pictures and to improve the degree of freedom for application of coloring by adhering a thermoplastic resin film having a horogram pattern face to a plate base made of a thermoplastic resin. CONSTITUTION:A laminator is formed by a plate 4 made of a thermoplastic resin and a thermoplastic resin film 1 adhered to the plate base 4 and having a horogram pattern face. In order to obtain the horogram pattern face, the film 1 and an object body 2 are arranged to a prescribed position and an optical system 6 such as a half mirror 5 splits a laser beam 4 from a laser light source 3 into an object light 7 radiated onto the object and a reference light 8 radiated onto the film at a prescribed angle. When the object light is radiated onto the object, the object light is reflected and refracted by the object and interfered with the reference light 8 and the interference fringe of the wave front is recorded on the film face as rugged or contrast horogram pattern face and then copied. Thus, the diaphragm member with satisfied design is obtained.

6. 发明专利

JPH01223897A ACOUSTIC DIAPHRAGM MEMBER AND ITS MANUFACTURE 失效
公开(公告)号：JPH01223897A
公开(公告)日：1989-09-06
申请号：JP5041588
申请日：1988-03-03
申请人： PIONEER ELECTRONIC CORP , PIONEER CONE CORP
发明人： KUSANAGI WATARU , ITO MINORU
IPC分类号： B32B27/20 , H04R7/02
摘要： PURPOSE:To obtain an acoustic diaphragm member with high degree of freedom in external appearance and design by laminating a propylene resin film having a pattern by photogravule print or the like and a composition sheet formed by scattering solid minute flaky particles in a propylene resin so as to obtain surface glitter. CONSTITUTION:An urethane adhesives 3 are applied to a main face carrying an ink layer 2 by gravule print of the OPP film 1 and a continuous plate base 4 is adhered to the film face having the adhesive layer 3. The OPP film is adhered to the plate base 4 comprising composition formed by scattering minute flaky solid particles into the propylene resin under an optional condition by a press roll to obtain a laminator. Thus, surface glitter is attained and the member with free hue and color is obtained.

7. 发明专利

JPH01223896A ACOUSTIC DIAPHRAGM MEMBER 失效
公开(公告)号：JPH01223896A
公开(公告)日：1989-09-06
申请号：JP5041788
申请日：1988-03-03
申请人： PIONEER ELECTRONIC CORP , PIONEER CONE CORP
发明人： ITO MINORU
IPC分类号： H04R7/02
摘要： PURPOSE:To obtain an acoustic diaphragm member excellent in external appearance and design by forming the member from a plate base having a horogram pattern face. CONSTITUTION:A film and an object 2 are arranged to a prescribed location and an optical system 6 such as a half mirror 5 splits a laser beam 4 from a laser light source 3 into an object light 7 radiated onto an object and a reference light 8 radiated onto the film at a prescribed angle. when the object light is radiated onto the object, the object light 7 is reflected and refracted by be object and the light is interfered with the reference light 8 and the interference fringe of wave front is recorded on the film face as a horogram pattern face with uneven or contrast. For example, the polypropylene continuous sheet plate base is formed in a cone shape in case of cone shape diaphragm, a photo resist is coated and the horogram is recorded in place of the film. Thus, excellent design performance is attained.

8. 发明专利

JPS61245798A MANUFACTURE OF DIAPHRAGM FOR SPEAKER 失效
公开(公告)号：JPS61245798A
公开(公告)日：1986-11-01
申请号：JP8780785
申请日：1985-04-24
申请人： PIONEER ELECTRONIC CORP , PIONEER CONE CORP
发明人： ITO MINORU
IPC分类号： H04R7/02 , H04R31/00
摘要： PURPOSE:To simplify the production process by heating a plane plate consisting of the mixture of a filler and a thermoplastic resin or a thermoplastic resin and pressing this plane plate to an embossing mold. CONSTITUTION:Materials consisting of the thermoplastic resin or the mixture where mica, talc, carbon, or the like is mixed with the thermoplastic resin is mold to obtain a sheet 1. A heat/cooling press machine is operated to press the sheet 1 heated by a heater 2 to a woven wire net 3 so as to cover the woven wire net 3 and a forming mold 4 with the sheet 1. The woven wire net 3 not only forms the embossment of the woven wire net pattern of minute ruggedness on the main surface of the sheet 1 heated and softened at a temperature matched to sheet materials but also forms the sheet 1 into a prescribed conical shape. The formed sheet 1 is taken out from the woven wire net 3 and is cut to a prescribed diaphragm shape to obtain a diaphragm for speaker.

9. 发明专利

JPH02116298A DIAPHRAGM FOR ACOUSTIC TRANSDUCER 失效
公开(公告)号：JPH02116298A
公开(公告)日：1990-04-27
申请号：JP26831388
申请日：1988-10-26
申请人： PIONEER ELECTRONIC CORP , PIONEER CONE CORP
发明人： ITO MINORU
IPC分类号： H04R7/02
摘要： PURPOSE:To make the title diaphragm into light weight, high elasticity with high internal loss, and economically by forming with kneading material of which main components are flaky graphite powder being surface-treated with thermoplastic resin and the thermoplastic resin, and orienting the flaky graphite powder over a surface. CONSTITUTION:The title device is formed with the kneading material of which main components are flaky graphite powder 2 being surface-treated with thermoplastic resin 1 and the thermoplastic resin and the flaky graphite powder 2 is arranged over the surface. The flaky graphite powder of approximately 20mum or below is preferable and the one of 5mum or below is particularly suitable. When the adherence quantity of the thermoplastic resin to surface-treat the graphite powder is within the range of 80-98wt.% of the graphite powder and 20-2wt.% of the resin, elastic modulus and the internal loss are improved and the one of 90wt.% of the graphite and 10wt.% of the resin is particularly suitable. The high elasticity and high ratio elastic modulus are attained because of the presence of the graphite powder being oriented over the surface in the resin.

10. 发明专利

JPH01282998A ACOUSTIC OSCILLATING MEMBER 失效
公开(公告)号：JPH01282998A
公开(公告)日：1989-11-14
申请号：JP11168688
申请日：1988-05-10
申请人： PIONEER ELECTRONIC CORP , PIONEER CONE CORP
发明人： ITO MINORU
IPC分类号： H04R7/02
摘要： PURPOSE:To form a surface with a pattern such as a picture and a photograph by floating a water soluble film on the water, dissolving printing ink printed on the film, and transferring the printing ink to a waterproof oscillating member. CONSTITUTION:The picture, the photograph, the pattern, etc., which are necessary, are printed on the water soluble film in the printing ink having water resistance, and the printing ink is activated. Next, the water soluble film is floated on the upper surface of a water tank with its printed surface upward. The water soluble film is dissolved by the water, and the state of the printing ink is made into a floated state on the water. When a diaphragm 1 is gently pushed into the water tank with its surface to be transferred downward at this time, the printing ink is adhered onto the surface to be transferred of the diaphragm 1 by water pressure in the water tank, and an ink layer 2 is formed. A top coating layer 3 is further formed on this ink layer 2.

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