公开(公告)号：US20220248114A1

公开(公告)日：2022-08-04

申请号：US17728329

申请日：2022-04-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Akihisa KAWAMURA ,  Shuji SAIKI ,  Satoshi TAKAYAMA

IPC: H04R1/02

Abstract: A building material facing a first space includes a structure which is in a plate form and includes at least one opening; a first loudspeaker disposed in a second space across the structure from the first space, in a position opposite to a corresponding one of the at least one opening; and a three-dimensional netlike structure disposed between the structure and the first loudspeaker and configured with a fibrous member three-dimensionally intertwined.

公开(公告)号：US20160234601A1

公开(公告)日：2016-08-11

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

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.

Abstract translation: 扬声器包括发光元件，框架，设置有磁隙的磁路，隔膜，音圈线轴和音圈。 隔膜包括具有与发光元件联接的端面的内周端部，导光部，反射面和与框架连接的外周端部。 音圈筒管的第一端连接到隔膜的内周端部，其第二端插入到磁隙中。 音圈绕在线圈架的第二端上。

公开(公告)号：US20250056155A1

公开(公告)日：2025-02-13

申请号：US18930071

申请日：2024-10-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kota NAKAHASHI ,  Shuji SAIKI ,  Akihisa KAWAMURA ,  Satoshi TAKAYAMA

IPC: H04R1/34

Abstract: An acoustic lens includes: a plurality of first partition plates aligned apart from each other in the traveling direction of sound waves to be emitted from a loudspeaker. Each of the plurality of first partition plates includes holes through which the sound waves pass. The lengths of the plurality of first partition plates in a first direction are mutually different.

公开(公告)号：US20250063297A1

公开(公告)日：2025-02-20

申请号：US18934815

申请日：2024-11-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kota NAKAHASHI ,  Shuji SAIKI ,  Akihisa KAWAMURA ,  Satoshi TAKAYAMA

IPC: H04R1/34 ,  G10K11/30

Abstract: An acoustic lens includes an opening and a plurality of partition plates. A sound wave to be emitted from a loudspeaker is input to the opening. The plurality of partition plates form a plurality of sound paths through which the sound wave input to the opening passes. The plurality of partition plates include a first control mechanism and a second control mechanism. The first control mechanism controls directivity, in a first direction, of the sound wave that has passed through the plurality of sound paths and is output to outside. The second control mechanism controls directivity, in a second direction intersecting the first direction, of the sound wave that has passed through the plurality of sound paths and is output to outside.

公开(公告)号：US20250071456A1

公开(公告)日：2025-02-27

申请号：US18938609

申请日：2024-11-06

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Minami NAKA ,  Shuji SAIKI ,  Akihisa KAWAMURA ,  Satoshi TAKAYAMA

IPC: H04R1/02

Abstract: A loudspeaker device includes: a loudspeaker unit; and a casing that defines an internal space in which the loudspeaker unit is housed. The casing includes a baffle board to which the loudspeaker unit is fixed in an orientation that exposes a diaphragm of the loudspeaker unit. The baffle board includes one or more through-holes that establish communication between an external space outside of the casing and the internal space. Sound that is emitted from the one or more through-holes has a wavelength with an inverted phase relative to sound emitted directly from the diaphragm to the external space.