公开(公告)号：US20230370782A1

公开(公告)日：2023-11-16

申请号：US18025724

申请日：2021-09-06

Applicant: RION CO., LTD.

Inventor： Takashi IWAKURA

IPC: H04R11/02

CPC classification number: H04R11/02

Abstract: This electromechanical transducer includes a pair of magnets, a pair of yokes that each comprise a plurality of yoke components superposed over each other in a flat-plate-form region and that guide magnetic fluxes generated by the magnets, a hollow-core coil to which an electric signal is supplied, an armature passed through a space inside a structural section formed by integrally arranging the magnets and the coil on the inner sides of the pair of yokes, and a pair of elastic members that each engage the structural section and the armature.

公开(公告)号：US20230204488A1

公开(公告)日：2023-06-29

申请号：US18087968

申请日：2022-12-23

Applicant: RION CO., LTD.

Inventor： Daisuke SHINOZAKI ,  Daisuke SAKAUE ,  Moe SUSAKI ,  Tomonobu MATSUDA

IPC: G01N15/14

CPC classification number: G01N15/1434 ,  G01N2015/1486 ,  G01N2015/1452

Abstract: A particle counter is configured to count particles contained in a sample fluid flowing through a flow passage by using light with which the flow passage is irradiated. The particle counter includes: a multi-flow cell having a plurality of the flow passages; a path adjuster configured to adjust a position of an optical path of the light with respect to the multi-flow cell, based on which flow passage is selected from the flow passages; and a light adjuster configured to adjust a condition of the light with which the selected flow passage is irradiated.

公开(公告)号：US11178495B2

公开(公告)日：2021-11-16

申请号：US17051135

申请日：2019-04-18

Applicant: RION CO., LTD.

Inventor： Takashi Iwakura

IPC: H04R19/00 ,  H04R9/00 ,  H04R11/02

Abstract: The electromechanical transducer is provided with: a structure portion in which a magnet, yokes, and a coil are integrally arranged; an armature which includes an inner portion penetrating through an internal space of the structure portion along a central axis in the X-direction, and outer portions, constitutes a magnetic circuit with the structure portion, and is displaced in the Z-direction; and elastic members providing the armature with a recovery force. Each of the elastic members has a first and a second engaging portions. A width in which a force in the Z-direction acts between each of the elastic members and the structure portion via the first engaging portion has a first distance. A width between each of the elastic members and the outer portion via the second engaging portion has a second distance in the Y-direction, wherein the dimension condition of 2a>2×2b is set.

公开(公告)号：USD913501S1

公开(公告)日：2021-03-16

申请号：US35507976

申请日：2018-10-11

Applicant: RION Co., Ltd.

Designer： Masatoshi Uzawa ,  Yoshimasa Maki

公开(公告)号：US20210029477A1

公开(公告)日：2021-01-28

申请号：US17044581

申请日：2019-04-05

Applicant: RION CO., LTD.

Inventor： Kyoji YOSHIKAWA ,  Takashi IWAKURA

IPC: H04R25/00 ,  H04R1/10 ,  H04R7/02

Abstract: An electroacoustic transducer includes an electromechanical transducer and a casing. The electromechanical transducer transduces an electric signal into mechanical vibration. The housing can be attached to a cavum conchae without blocking an external auditory canal, in which the electromechanical transducer is housed, and vibrates due to the mechanical vibration caused by the electromechanical transducer to generate sound. The housing includes an inner housing portion located on the external auditory canal side and an outer housing portion located on an external environment side when the housing is attached to the cavum conchae. The housing has an ellipsoidal shape or an oval shape.

公开(公告)号：US20190364361A1

公开(公告)日：2019-11-28

申请号：US16418579

申请日：2019-05-21

Applicant: NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY ,  RION Co., Ltd.

Inventor： Kiyoshi NISHIYAMA ,  Masahiro SUNOHARA ,  Nobuhiko HIRUMA ,  Chiho HARUTA ,  Makoto TATENO

IPC: H04R3/04 ,  G10L21/0232

Abstract: A system identification device for performing fast real-time identification for a system from input/output data includes a filter robust to disturbance, by setting the maximum energy gain from the disturbance to a filter error, as an evaluation criterion, smaller than a given upper limit. The filter estimates a state estimation value of a state of the system.

公开(公告)号：US10482894B2

公开(公告)日：2019-11-19

申请号：US16279486

申请日：2019-02-19

Applicant: RION Co., Ltd.

Inventor： Masatoshi Osawa ,  Masahiro Sunohara ,  Yoichi Fujisaka ,  Yoko Fujishima

IPC: G10L21/0208 ,  G10K15/08 ,  H04R25/00 ,  G10L21/0324

Abstract: A dereverberation device includes an input instantaneous value calculation unit configured to calculate an input instantaneous value based on an input signal; a reverberation estimation unit configured to calculate a moving average of the input instantaneous value as a reverberation component; a gain calculation unit configured to calculate, with the input instantaneous value and the reverberation component, a first gain as a basic gain for the input signal; a gain suppression control unit configured to calculate, according to a ratio between the input instantaneous value and the reverberation component, a second gain changing within a range between a predetermined lower limit and a predetermined upper limit, thereby outputting a larger one of the first gain or the second gain as a third gain; and a gain processing unit configured to multiply the input signal by the third gain.

公开(公告)号：US10447132B2

公开(公告)日：2019-10-15

申请号：US15439750

申请日：2017-02-22

Applicant: Rion Co., Ltd.

Inventor： Takashi Iwakura

IPC: H02K33/00 ,  H02K33/02 ,  H04R11/02 ,  H04R25/00

Abstract: An electromechanical transducer of the invention comprises a structural unit, an armature, and the first and second elastic units. The structural unit includes magnets, a yoke and a coil. The armature includes an inner portion disposed to pass through inside the structural unit and two outer portions protruding from the inner portion in a first direction, and the armature constitutes a magnetic circuit with the structural unit via two regions through which components of the magnetic flux flow in reverse directions in the inner region. The elastic units give restoring forces to the outer portions in response to displacement of the armature due to magnetic forces of the magnetic circuit. In the armature, a cross-sectional area at a predetermined position between the two regions is smaller than that at the two regions, and magnetic flux flowing in the first direction within a range of displacement of the armature.

公开(公告)号：US10416069B2

公开(公告)日：2019-09-17

申请号：US16200511

申请日：2018-11-26

Applicant: RION Co., Ltd.

Inventor： Mitsuaki Saitou ,  Masaki Shimmura ,  Tomonobu Matsuda ,  Yuki Yamakawa

IPC: G01N15/14

Abstract: A particle counter provided with: a detector configured to receive interference light by scattered light and reference light with a light receiving element, and generate a detection signal corresponding to the interference light; a filter configured to perform, with respect to the detection signal generated by the detector, a filtering process for passing a frequency component corresponding to an intensity change of the interference light; a determination unit configured to determine, from a peak level of the detection signal before filtering and a peak level of the detection signal after filtering, whether the detection signal is due to a particle; and a counting unit configured to perform, if it is determined by the determination unit that the detection signal is due to the particle, particle counting based on the detection signal after filtering.

公开(公告)号：US20190272633A1

公开(公告)日：2019-09-05

申请号：US16288466

申请日：2019-02-28

Applicant: RION Co., Ltd. ,  Utsunomiya University

Inventor： Takeshi NAKAGAWA ,  Daisuke BARADA

IPC: G06T7/00 ,  H04R25/00 ,  H04R25/02 ,  H04R1/10

Abstract: A three-dimensional shape data production method and a system for the same for realizing contactless receiving of data regarding the inner shape of a tubular body which includes a step of generating multiple pieces of two-dimensional image data based on a signal from an image capturing device configured to be movable inside a tubular body and configured to capture an image of the inside of the tubular body; a step of receiving space information on the image capturing device upon image capturing by the image capturing device based on a signal from a motion sensor placed at the image capturing device; and a step of associating the two-dimensional image data and the space information with each other and generating three-dimensional shape data of the inside of the tubular body based on the two-dimensional image data and the space information.