公开(公告)号：US11979724B2

公开(公告)日：2024-05-07

申请号：US17339209

申请日：2021-06-04

Applicant: Yamaha Corporation

Inventor： Hiroshi Nakashima ,  Tsunenori Sano

IPC: H04R7/12 ,  H04R1/10

CPC classification number: H04R7/125 ,  H04R1/1008 ,  H04R2307/021 ,  H04R2307/029

Abstract: A speaker diaphragm includes a mixed layer. The mixed layer includes cellulose nanofibers, and polyparaphenylenebenzobisoxazole fibers. An average length of the polyparaphenylenebenzobisoxazole fibers is 0.5 mm or more and 4.0 mm or less.

公开(公告)号：US20240147160A1

公开(公告)日：2024-05-02

申请号：US17975723

申请日：2022-10-28

Applicant: FLATVOX FZC LLC

Inventor： Dmitry Vladimirovich PETRENKO ,  Mikhail GORDEN

IPC: H04R7/10 ,  H04R1/02 ,  H04R1/28 ,  H04R3/00

CPC classification number: H04R7/10 ,  H04R1/023 ,  H04R1/025 ,  H04R1/288 ,  H04R3/00 ,  H04R2307/021 ,  H04R2307/027

Abstract: A high-frequency (HF) sound-emitting device is provided, which comprises an open-ended hollow housing, an acoustic oscillator arranged inside the hollow housing and configured to generate HF sound oscillations, and a sound-emitting membrane attached to the acoustic oscillator. The sound-emitting membrane comprises a paper-based composite material layer, a metal layer, and a coating layer. The paper-based composite material layer has a top surface facing the open end of the hollow housing. The metal layer is provided on the top surface of the paper-based composite material layer and configured to reproduce the HF sound oscillations. The coating layer is provided on the metal layer and has one or more slots through which the metal layer is visible. The coating layer is made of a material incapable of reproducing the HF sound oscillations. With this configuration, the sound-emitting device may emit a fractal-polarized sound field.

公开(公告)号：US11758318B1

公开(公告)日：2023-09-12

申请号：US18116451

申请日：2023-03-02

Applicant: FLATVOX FZC LLC

Inventor： Dmitry Vladimirovich Petrenko ,  Mikhail Gorden

IPC: H04R1/10 ,  H04R7/00 ,  H04R7/10

CPC classification number: H04R1/1075 ,  H04R1/105 ,  H04R1/1008 ,  H04R7/10 ,  H04R2307/021 ,  H04R2307/027

Abstract: Aheadphone configured to emit a fractal-polarized sound field is provided. The headphone comprises a sound-emitting membrane, an acoustic oscillator, and an ear pad. The sound-emitting membrane comprises a paper-based composite material layer, a metal layer, and a coating layer. The paper-based composite material layer has a front surface and a rear surface, with the front surface facing a user ear. The metal layer is provided on the front surface of the paper-based composite material layer and configured to reproduce HF acoustic oscillations. The coating layer is provided on the metal layer and has one or more slots through which the metal layer is visible. The coating layer is made of a material incapable of reproducing the HF acoustic oscillations. The acoustic oscillator generating the acoustic oscillations is attached to the rear surface of the paper-based composite material layer. The ear pad is configured to cover the coating layer.

公开(公告)号：US20230217199A1

公开(公告)日：2023-07-06

申请号：US17927081

申请日：2021-06-02

Applicant: FOSTER ELECTRIC COMPANY, LIMITED

Inventor： Hisami KAJIWARA ,  Masahiro MIWA

IPC: H04R31/00

CPC classification number: H04R31/003 ,  H04R2307/021 ,  H04R2307/029

Abstract: An aspect of the present invention is directed to a diaphragm for an electroacoustic transducer, and according to the diaphragm for an electroacoustic transducer, in a base material made of a fiber material mainly composed of cellulose fibers, a mixed layer in which the fiber material and silk nanofibers are mixed is formed.

公开(公告)号：US20180152800A1

公开(公告)日：2018-05-31

申请号：US15568126

申请日：2015-11-16

Applicant: GOERTEK INC.

Inventor： Xiaodong CAI ,  Guodong ZHAO

IPC: H04R31/00 ,  H04R7/12 ,  H04R9/04 ,  H04R9/06 ,  H04R1/44

CPC classification number: H04R31/003 ,  H04R1/44 ,  H04R7/122 ,  H04R7/125 ,  H04R9/045 ,  H04R9/046 ,  H04R9/06 ,  H04R2231/001 ,  H04R2307/021 ,  H04R2307/025 ,  H04R2307/029 ,  H04R2400/11 ,  H04R2499/11

Abstract: Disclosed is a speaker device, comprising a vibration system, a magnetic circuit system, and an auxiliary system for accommodating and fixing the vibration system and the magnetic circuit system. The vibration system comprises a diaphragm, the auxiliary system comprises a front cover, a side of the front cover is provided a waterproof pad, said side being away from the vibration system. The diaphragm are bonded to the front cover and the waterproof pad by integrally injection molding. The speaker device of the present invention satisfies terminal waterproof requirements for IPX7 and above, and has a good waterproof effect. Besides, a production process of the waterproof speaker device is simplified, production efficiency is increased, production costs of the speaker device are decreased, and the reprocessed product yield of the speaker device is increased.

公开(公告)号：US09781515B2

公开(公告)日：2017-10-03

申请号：US15023684

申请日：2015-08-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomonori Shibuya ,  Yoshiyuki Takahashi ,  Yoshimichi Kajihara ,  Tetsushi Itano ,  Mitsukazu Kuze ,  Takayuki Dan

IPC: H04R1/00 ,  H04R7/06 ,  H04R9/06 ,  H04R7/12 ,  H04R9/04

CPC classification number: H04R7/06 ,  H04R7/125 ,  H04R9/045 ,  H04R9/06 ,  H04R2307/021 ,  H04R2307/029 ,  H04R2499/11 ,  Y10S977/796

Abstract: A loudspeaker diaphragm includes a base layer and a coating layer. The base layer contains natural fibers. The coating layer is composed of bamboo cellulose nanofibers and is formed at least on the first side of the base layer. The coating layer has a thickness in the range of 3% to 15%, both inclusive of the sum of the thicknesses of the base layer and the coating layer.

公开(公告)号：US09628916B2

公开(公告)日：2017-04-18

申请号：US15023681

申请日：2015-03-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takafumi Yuasa ,  Kenji Yamauchi ,  Satoshi Takayama ,  Koichi Nakayama ,  Ryo Kuribayashi

IPC: H04R1/02 ,  H04R7/12 ,  B60R11/02 ,  F21V8/00 ,  H04R9/02 ,  H04R9/04 ,  F21V33/00

CPC classification number: H04R7/125 ,  B60R11/0217 ,  F21V33/0056 ,  G02B6/0055 ,  H04R1/025 ,  H04R1/028 ,  H04R7/12 ,  H04R9/025 ,  H04R9/04 ,  H04R9/045 ,  H04R2307/021 ,  H04R2307/025 ,  H04R2307/029 ,  H04R2499/11

Abstract: A loudspeaker includes a light-emitting element, a frame, a magnetic circuit provided with a magnetic gap, a diaphragm, a voice coil bobbin, and a voice coil. The diaphragm includes an inner peripheral end portion having an end face to which a light-emitting element is coupled, a light-guide portion, a reflective surface, and an outer peripheral end portion coupled to the frame. The first end of the voice coil bobbin is coupled to the inner peripheral end portion of the diaphragm, and the second end thereof is inserted into the magnetic gap. A voice coil is wound on the second end of the voice coil bobbin.

公开(公告)号：US20160295330A1

公开(公告)日：2016-10-06

申请号：US14674826

申请日：2015-03-31

Applicant: Bose Corporation

Inventor： Agota F. Fehervari ,  Shawn Prevoir ,  Wit Bushko

IPC: H04R7/12 ,  H04R7/14 ,  H04R7/26

CPC classification number: H04R7/125 ,  H04R7/14 ,  H04R2307/021 ,  H04R2307/023 ,  H04R2307/025 ,  H04R2307/029

Abstract: An acoustic diaphragm made at least in part from an expanded material. The expanded material includes one or more of cellulose, synthetic fibers and glass fibers. The expanded material has more than about 55% by volume voids.

Abstract translation: 至少部分地由膨胀材料制成的声膜。 膨胀材料包括纤维素，合成纤维和玻璃纤维中的一种或多种。 膨胀材料具有大于约55体积％的空隙。

公开(公告)号：US09173036B2

公开(公告)日：2015-10-27

申请号：US14267680

申请日：2014-05-01

Applicant: Panasonic Corporation

Inventor： Yohei Jin

IPC: H04R9/04 ,  H04R9/06 ,  H04R7/04 ,  H04R9/02 ,  H04R31/00 ,  H04R9/00 ,  H04R7/00 ,  D21H17/00 ,  D21H21/00

CPC classification number: H04R9/025 ,  H04R7/04 ,  H04R31/003 ,  H04R2307/021

Abstract: After beaten, pulp is mixed with a filler to obtain a mixture of the pulp and the filler. Additives are added to the mixture, which is made into pater and then hot-pressed. The filler content of the mixture is in the range of 20 wt % to 80 wt %. After the additives are added, a polymeric viscosity improver with high viscosity is added to produce a narrow diaphragm or a thin compact diaphragm with high aspect ratio. These diaphragms have high rigidity and a wide reproduction frequency range.

Abstract translation: 殴打后，将纸浆与填料混合，得到纸浆和填料的混合物。 将添加剂加入到混合物中，将其制成压片然后热压。 混合物的填料含量在20重量％至80重量％的范围内。 加入添加剂后，加入高粘度的聚合物粘度改进剂以产生具有高纵横比的窄膜片或薄的紧密隔膜。 这些隔膜具有高刚性和宽的再现频率范围。

公开(公告)号：US09113250B2

公开(公告)日：2015-08-18

申请号：US13905103

申请日：2013-05-29

Applicant: Hsin Min Huang

Inventor： Hsin Min Huang

IPC: H04R7/10 ,  H04R7/02 ,  H04R31/00 ,  H04R7/06 ,  H04R7/04

CPC classification number: H04R7/10 ,  H04R1/00 ,  H04R7/02 ,  H04R7/04 ,  H04R7/06 ,  H04R31/003 ,  H04R2207/00 ,  H04R2307/021 ,  H04R2307/025 ,  H04R2307/027 ,  H04R2307/029

Abstract: A diaphragm arrangement includes a middle foaming layer defining a first flat surface and an opposed flat surface, a first layer overlapped on the first flat surface of the middle foaming layer, and a second layer overlapped on the second flat surface of the middle foaming layer to form a flat speaker diaphragm which is arranged to mount at an opening of a supporting frame of a speaker.

Abstract translation: 隔膜装置包括限定第一平坦表面和相对平坦表面的中间发泡层，重叠在中间发泡层的第一平坦表面上的第一层和在中间发泡层的第二平坦表面上重叠的第二层， 形成安装在扬声器的支撑框架的开口处的平坦扬声器振动膜。