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公开(公告)号：US10375478B2
公开(公告)日：2019-08-06
申请号：US15834449
申请日：2017-12-07
Inventor： Shuichi Konno , Ryo Kuribayashi , Kazutaka Kubo , Hiroyuki Amada , Yohei Jin , Hiroyuki Morimoto
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.
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Patent Agency Ranking
公开(公告)号：US10477290B2
公开(公告)日：2019-11-12
申请号：US15946752
申请日：2018-04-06
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.
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3.发明授权公开(公告)号：US09596545B2
公开(公告)日：2017-03-14
申请号：US15023681
申请日：2015-03-23
Inventor： Takafumi Yuasa , Kenji Yamauchi , Satoshi Takayama , Koichi Nakayama , Ryo Kuribayashi
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.
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公开(公告)号：US09888321B2
公开(公告)日：2018-02-06
申请号：US15075107
申请日：2016-03-19
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.
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公开(公告)号：US09813820B2
公开(公告)日：2017-11-07
申请号：US15023419
申请日：2015-02-23
Inventor： Takafumi Yuasa , Kenji Yamauchi , Satoshi Takayama , Koichi Nakayama , Ryo Kuribayashi
CPC classification number: H04R9/06 , F21V33/0056 , G02B6/002 , G02B6/0055 , H04R1/028 , H04R7/125 , H04R7/22 , H04R2499/13
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 has an inner circumferential end including an end face facing the light-emitting element, and a light guide having a reflecting surface formed thereon and provided at a position where light enters from the end face. The first end of the voice coil bobbin is joined to the inner circumferential end of the diaphragm, and the second end is inserted into the magnetic gap. The voice coil is wound around the second end of the voice coil bobbin. Light from the light-emitting element enters the end face of the diaphragm, is diffused by the light guide, and is reflected on the reflecting surface.
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6.发明授权公开(公告)号：US09628916B2
公开(公告)日：2017-04-18
申请号：US15023681
申请日：2015-03-23
Inventor： Takafumi Yuasa , Kenji Yamauchi , Satoshi Takayama , Koichi Nakayama , Ryo Kuribayashi
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.
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