公开(公告)号：US10477290B2

公开(公告)日：2019-11-12

申请号：US15946752

申请日：2018-04-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryo Kuribayashi ,  Takayumi Daikoku ,  Tetsushi Itano ,  Hirofumi Higashi ,  Hiroyuki Morimoto ,  Yohei Jin

IPC: H04R1/02

Abstract: A loudspeaker device includes a loudspeaker unit and an enclosure. The loudspeaker unit outputs sounds mainly in a first direction, upon receiving an electric signal. The enclosure is configured with at least a part of an interior member of a movable-body device, and secures and accommodates the loudspeaker unit in the inside of the enclosure. The interior member includes a body part, and an accommodation part that accommodates the loudspeaker unit therein and is formed integrally with the body part. The accommodation part is larger in dimension along the first direction than the body part.

公开(公告)号：US10375478B2

公开(公告)日：2019-08-06

申请号：US15834449

申请日：2017-12-07

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Shuichi Konno ,  Ryo Kuribayashi ,  Kazutaka Kubo ,  Hiroyuki Amada ,  Yohei Jin ,  Hiroyuki Morimoto

IPC: H04R7/18 ,  H04R7/12 ,  H04R1/28 ,  H04R9/02 ,  H04R7/20 ,  H04R9/06

Abstract: A loudspeaker diaphragm includes a cone having a curved surface from the outer to the inner periphery, and an annular edge of which inner peripheral part is bonded to the front side of the outer peripheral part of the cone. When seen from the front, the outer periphery of the cone is defined by smooth connection of three larger-diameter parts tangent to a first circle with a larger diameter, and three smaller-diameter parts each located between adjacent two of the three larger-diameter parts and tangent to a second circle with a smaller diameter. In the cone, a shape defined by connecting together points at the same position on the central axis is more circular as the points approach the inner periphery from the outer periphery. The inner periphery of the edge has a smaller radius than the second circle.

公开(公告)号：US09438997B2

公开(公告)日：2016-09-06

申请号：US14650324

申请日：2013-11-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yohei Jin ,  Yoshimichi Kajihara

IPC: H04R7/00 ,  H04R7/02 ,  H04R1/00 ,  H04R7/06 ,  H04R31/00 ,  H04R9/06

CPC classification number: H04R7/02 ,  H04R1/00 ,  H04R7/06 ,  H04R9/06 ,  H04R31/003 ,  H04R2307/021 ,  H04R2307/023 ,  H04R2307/025 ,  H04R2307/027 ,  H04R2307/029 ,  H04R2499/11 ,  H04R2499/13 ,  H04R2499/15

Abstract: A diaphragm includes a paper layer and a skin layer. The paper layer includes natural fibers and synthetic fibers formed of thermoplastic resin. The paper layer is formed by mixing the natural fibers and the synthetic fibers in water, and thinly spreading a resultant mixture on a mesh. The skin layer is formed on one surface of the paper layer. Note here that the skin layer is formed of the same resin as that of the synthetic fibers.

Abstract translation: 隔膜包括纸层和表皮层。 纸层包括由热塑性树脂形成的天然纤维和合成纤维。 通过将天然纤维和合成纤维混合在水中形成纸层，并将所得混合物在网上稀释。 表皮层形成在纸层的一个表面上。 这里注意，表层由与合成纤维相同的树脂形成。

公开(公告)号：US09877109B2

公开(公告)日：2018-01-23

申请号：US14893056

申请日：2014-07-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshimichi Kajihara ,  Yohei Jin

IPC: H04R7/06 ,  H04R7/18 ,  H04R31/00 ,  H04R9/02

CPC classification number: H04R7/06 ,  H04R7/18 ,  H04R9/025 ,  H04R31/003 ,  H04R2307/023 ,  H04R2307/029

Abstract: A diaphragm for loudspeaker contains resin and single-crystal diamond powder dispersed in the resin.

公开(公告)号：US09716950B2

公开(公告)日：2017-07-25

申请号：US15022206

申请日：2014-10-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yoshimichi Kajihara ,  Yohei Jin

IPC: H04R1/00 ,  H04R7/06 ,  H04R7/12 ,  B32B29/02 ,  H04R9/06 ,  H04R31/00

CPC classification number: H04R7/06 ,  B32B29/02 ,  B32B2260/021 ,  B32B2260/046 ,  B32B2262/103 ,  B32B2262/106 ,  B32B2307/51 ,  B32B2307/54 ,  B32B2307/7265 ,  B32B2457/00 ,  H04R7/125 ,  H04R9/06 ,  H04R31/003 ,  H04R2307/025 ,  H04R2307/027 ,  H04R2307/029 ,  H04R2499/11 ,  H04R2499/13

Abstract: The diaphragm has a paper base layer and a papermaking layer. The papermaking layer is formed on a surface of the paper base layer. The paper base layer contains natural fibers and thermoplastic resin, and is formed by a papermaking process with a mixture of the natural fibers and the resin. The papermaking layer, contains fibers each having a tensile elastic modulus of 150 GPa or greater, and is formed by a papermaking process with the fibers.

公开(公告)号：US09888321B2

公开(公告)日：2018-02-06

申请号：US15075107

申请日：2016-03-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Ryo Kuribayashi ,  Kazutaka Kubo ,  Yohei Jin ,  Hitoshi Sato ,  Hiroyuki Morimoto

IPC: H04R1/02 ,  H04R1/20 ,  H04R7/14 ,  F21V7/04 ,  F21V7/22 ,  F21V33/00 ,  H04R7/12 ,  H04R9/02 ,  F21Y101/02 ,  F21Y105/00

CPC classification number: H04R7/14 ,  F21V7/048 ,  F21V7/22 ,  F21V33/0056 ,  F21Y2101/00 ,  F21Y2101/02 ,  F21Y2105/00 ,  F21Y2105/003 ,  H04R1/025 ,  H04R1/028 ,  H04R7/122 ,  H04R7/127 ,  H04R9/025 ,  H04R2201/028 ,  H04R2207/021 ,  H04R2307/025 ,  H04R2307/029 ,  H04R2499/11 ,  H04R2499/13

Abstract: A loudspeaker includes a frame, a magnetic circuit provided with a magnetic gap, a cone-shaped diaphragm, a voice coil, and an LED. The magnetic circuit is connected to a lower part of the frame. The diaphragm is connected to an outer periphery of the frame. A first end of the voice coil is connected to the diaphragm, and a second end thereof is inserted into the magnetic gap. The LED is provide on an upper part of the frame, and outputs light toward the center of the diaphragm. The LED is disposed such that the diaphragm reflects the light.