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：US10708693B2

公开(公告)日：2020-07-07

申请号：US16302286

申请日：2017-06-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tomonori Shibuya ,  Yoshiyuki Takahashi ,  Nobuo Nakamura ,  Takayuki Dan ,  Tetsushi Itano

IPC: H04R7/12 ,  H04R7/18 ,  H04R9/02 ,  H04R9/06 ,  H04R31/00 ,  H04R7/10 ,  H04R9/04 ,  H04R1/02

Abstract: A vibration component for loudspeakers includes a base layer, an intermediate layer, and a coating layer. The base layer has a front face and a rear face, has a first density, and is formed of a paper body containing a plurality of fibers. The intermediate layer has a first face joined to the front face of the base layer, and a second face on a reverse side of the intermediate layer from the first face, has a second density higher than the first density, and includes a plurality of cellulose fibers as a main component. The coating layer is provided on the second face of the intermediate layer, and includes an inorganic powder formed of a plurality of inorganic fine particles.

公开(公告)号：US10484794B2

公开(公告)日：2019-11-19

申请号：US16031496

申请日：2018-07-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tetsushi Itano ,  Seiji Takagi ,  Kenji Endou ,  Kazuaki Nishimura ,  Makoto Kurozawa

IPC: H04R7/12 ,  H04R31/00 ,  B29C45/00 ,  B29C45/56 ,  B29K23/00 ,  B29K309/10 ,  B29K509/08 ,  B29L31/38

Abstract: A loudspeaker diaphragm includes resin and hollow glass member particles contained in the resin. Further, a loudspeaker includes the above-described loudspeaker diaphragm, a magnetic circuit, a frame connected to the magnetic circuit, and a voice coil body having one end connected to the loudspeaker diaphragm and the other end disposed inside a magnetic gap in the magnetic circuit.

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：US11582557B2

公开(公告)日：2023-02-14

申请号：US17211114

申请日：2021-03-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Tetsuya Koyanagi ,  Tetsushi Itano ,  Kazuaki Nishimura ,  Makoto Kurozawa ,  Ryouichi Uemoto ,  Hiroki Sano

IPC: H04R7/12 ,  H04R7/20 ,  H04R31/00

Abstract: A speaker diaphragm includes an edge formed from an elastomer, and a diaphragm body that is to be joined to the edge. A joint between the edge and the diaphragm body includes a melting portion between the edge and the diaphragm body.