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1. 发明公开

EP4436208A1 DIAPHRAGM AND LOUDSPEAKER DEVICE 审中-实审
公开(公告)号：EP4436208A1
公开(公告)日：2024-09-25
申请号：EP22894609.1
申请日：2022-10-28
申请人： Caldron Technologies Ptd. Ltd.
发明人： LI, hao , YUAN, Quan , LIU, Qian
IPC分类号： H04R7/02 , H04R7/06 , H04R7/16
CPC分类号： H04R7/06 , H04R7/02 , H04R7/16
摘要： Embodiments of the present disclosure provide a diaphragm and an audio device. The diaphragm comprises: at least one insulating film, a plurality of conductive films, and a plurality of connecting pieces. The insulating film is provided with a magnetic pole corresponding area. Each of the conductive films is connected at least to one insulating film, the plurality of conductive films is arranged with an interval, and the magnetic pole corresponding regions are respectively arranged on the two sides of each conductive film. The plurality of conductive films is connected in series by means of the plurality of connecting pieces to form an energized circuit. According to the technical solution provided in the embodiments of the present disclosure, the at least one insulating film is connected with the plurality of conductive films arranged with an interval, and the magnetic pole corresponding regions are respectively arranged on the two sides of each conductive film, such that a conductive film having a relatively large area can be located in a relatively strong magnetic field, each conductive film also emits low-frequency sound that meets user's needs, and the conductive film can cover the high, medium and low frequency spectrum.

3. 发明授权

EP3923601B1 VIBRATION COMPONENT, SPEAKER AND ELECTRONIC DEVICE 有权
公开(公告)号：EP3923601B1
公开(公告)日：2024-03-13
申请号：EP21152017.6
申请日：2021-01-18
发明人： SHAN, Lianwen , MA, Jishuang , ZHANG, Yu
IPC分类号： H04R7/02 , H04R9/02

4. 发明公开

EP4132002A1 VIBRATION PLATE AND METHOD FOR MANUFACTURING VIBRATION PLATE 审中-实审
公开(公告)号：EP4132002A1
公开(公告)日：2023-02-08
申请号：EP21778713.4
申请日：2021-03-31
申请人： Foster Electric Company, Limited
发明人： SAI, Yusuke , NAKAYAMA, Hirotsugu
IPC分类号： H04R7/02 , H04R7/12 , H04R31/00
摘要： A diaphragm 1 for an electroacoustic transducer includes a paper substrate 10 containing cellulose fibers 20 as a main component and is configured such that a first surface region 12 with a predetermined thickness from a first surface of the paper substrate 10 has a greater total amount of coloring particles 21 than a second surface region 14 with a predetermined thickness from a second surface of the paper substrate 10, the second surface being opposite to the first surface.

5. 发明授权

EP3370436B1 HYBRID SPEAKER 有权转让
公开(公告)号：EP3370436B1
公开(公告)日：2022-08-03
申请号：EP17821775.8
申请日：2017-09-29
发明人： OKJEONG, Yoo
IPC分类号： H04R1/24 , H04R9/02 , H04R7/02

6. 发明公开

EP3869822A1 DIAPHRAGM FOR ELECTROACOUSTIC TRANSDUCER 有权
公开(公告)号：EP3869822A1
公开(公告)日：2021-08-25
申请号：EP19872449.4
申请日：2019-10-03
申请人： Foster Electric Co. Ltd.
发明人： KAJIWARA Hisami
IPC分类号： H04R7/02
摘要： In a diaphragm 1, at a front surface side surface layer of a base material 10 made of pulps 20 which are mainly composed of cellulose, a mixed layer 11 in which the pulps 20, mica 22, and cellulose nanofibers 21 are mixed is formed.

7. 发明公开

EP3833048A1 SPEAKER DIAPHRAGM AND METHOD FOR PRODUCING SPEAKER DIAPHRAGM 审中-实审
公开(公告)号：EP3833048A1
公开(公告)日：2021-06-09
申请号：EP19840991.4
申请日：2019-07-25
申请人： YAMAHA CORPORATION
发明人： NAKASHIMA, Hiroshi , ABE, Eiji , SANO, Tsunenori , HIYAMA, Kunio
IPC分类号： H04R7/02 , H04R7/12 , H04R31/00
摘要： An object of the present invention is to provide a speaker diaphragm capable of uniformly increasing rigidity over the entire region. A speaker diaphragm 1 according to the present invention includes a substrate having a resin matrix 2 containing a thermoplastic resin as a main component; and fibers 3 dispersed in the resin matrix 2, wherein the fibers 3 are polyparaphenylene benzobisoxazole fibers, and an average length of the fibers 3 is 0.5 mm or more and 3.0 mm or less.

8. 发明公开

EP3788798A1 PRESSURE PORT FOR ULTRASONIC TRANSDUCER ON CMOS SENSOR 有权转让
公开(公告)号：EP3788798A1
公开(公告)日：2021-03-10
申请号：EP19795861.4
申请日：2019-05-02
申请人： Butterfly Network, Inc.
发明人： FIFE, Keith, G. , LIU, Jianwei , YANG, Jungwook , LUTSKY, Joseph
IPC分类号： H04R7/02 , H04R31/00 , A61B8/00

9. 发明公开

EP3706434A1 SPEAKER VIBRATION PLATE AND METHOD OF MANUFACTURING SAME 审中-公开
公开(公告)号：EP3706434A1
公开(公告)日：2020-09-09
申请号：EP18871983.5
申请日：2018-10-19
申请人： Yamaha Corporation
发明人： NAKASHIMA Hiroshi , SANO Tsunenori
IPC分类号： H04R7/02 , H04R31/00
摘要： An object of the present invention is to provide a speaker diaphragm having high rigidity and a sufficient vibration attenuation rate. The speaker diaphragm according to the present invention has a highly rigid layer (1) having a resin matrix and fibers dispersed in the resin matrix, wherein the fibers in the highly rigid layer include a wood pulp and highly rigid fibers.

10. 发明公开

EP3694911A1 POLYMERIC FILM AND SPEAKER DIAPHRAGM COMPRISING IT 审中-公开
公开(公告)号：EP3694911A1
公开(公告)日：2020-08-19
申请号：EP18788851.6
申请日：2018-10-11
申请人： Victrex Manufacturing Limited
发明人： ELLERAY, Andrew , RIMMER, Colin
IPC分类号： C08J5/18 , C08L71/00 , H04R7/02

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