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公开(公告)号：US20180167734A1
公开(公告)日：2018-06-14
申请号：US15834449
申请日：2017-12-07
Inventor： Shuichi KONNO , Ryo KURIBAYASHI , Kazutaka KUBO , Hiroyuki AMADA , Yohei JIN , Hiroyuki MORIMOTO
CPC classification number: H04R7/127 , H04R1/288 , H04R7/12 , H04R7/18 , H04R7/20 , H04R9/025 , H04R9/06 , H04R2307/021 , H04R2307/204 , H04R2400/11
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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公开(公告)号：US20170357372A1
公开(公告)日：2017-12-14
申请号：US15433712
申请日：2017-02-15
Inventor： Hiroyuki MORIMOTO
CPC classification number: G06F3/0418 , G06F3/044 , G06F3/1423
Abstract: A failure detection device according to the present disclosure is a failure detection device that detects a failure of an input interface device detecting a position on a screen, the position being selected by an input operation. The failure detection device includes a memory, and a controller connectable to the input interface device. The controller acquires position information of a predetermined selected region on a screen, calculates a counted number of determinations that the predetermined selected region is not present on a selected position on the screen, and determines that an input interface device is in an abnormal state in a case where the counted number satisfies a predetermined condition.
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公开(公告)号：US20240244379A1
公开(公告)日：2024-07-18
申请号：US18404304
申请日：2024-01-04
Inventor： Mitsukazu KUZE , Tetsushi ITANO , Ryouichi UEMOTO , Hiroyuki MORIMOTO
Abstract: A diaphragm including at least a first portion, a second portion, and a third portion that are arranged around a predetermined reference axis extending in a vibration direction, and each have a different cross-sectional shape along a plane that includes the reference axis, in which the cross-sectional shape of the first portion is an arc having a first radius of curvature, the cross-sectional shape of the second portion is an arc having a second radius of curvature different from the first radius of curvature, and the cross-sectional shape of the third portion is a part of an ellipse.
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公开(公告)号：US20230156384A1
公开(公告)日：2023-05-18
申请号：US17977288
申请日：2022-10-31
Inventor： Hiroyuki MORIMOTO , Yuuki IZUMI
IPC: H04R1/02
CPC classification number: H04R1/025 , H04R2499/13 , H04R2201/021 , H04R2400/11
Abstract: A loudspeaker to be attached to an attachment member, the loudspeaker including: a temporary joint pin which is inserted into a temporary joint hole and temporarily holds the loudspeaker in a suspended state. The temporary joint pin includes a rod-like portion backwardly projects from a rear end surface of a frame; a tilted surface portion which is part of an inner circumferential surface of a circumferential surface of the rod-like portion to be brought into contact with the temporary joint hole, and is tilted to become closer to the central axis of the rod-like portion from a base end toward a distal end of the rod-like portion in a direction of projection; and a flanged portion which is adjacent to the tilted surface portion at the distal end of the rod-like portion, protrudes in a direction crossing the direction of projection, and catches onto the attachment member.
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