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Dive into the research topics where Satoshi Koura is active.

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Featured researches published by Satoshi Koura.


Journal of the Acoustical Society of America | 1995

Speaker and speaker system employing the same

Shuji Saiki; Kazuki Honda; Satoshi Koura

A speaker has an edge member which includes a plurality of peripheral pieces and a plurality of connecting portions for connecting neighboring ones of the pieces. The neighboring ones of the pieces have cross-sectional shapes symmetric with respect to each other in an axial direction of the edge member. Each of the connecting portions has a cross-sectional shape that changes gradually and continuously. A diaphragm which is secured to an inner periphery or an outer periphery of the edge member, and a frame is secured to an outer periphery or an inner periphery of the edge member.


Journal of the Acoustical Society of America | 2001

Speaker and magnetic circuit used for the speaker

Takashi Suzuki; Satoshi Koura


Archive | 2008

MATERIAL FOR SPEAKER DEVICE AND A SPEAKER DEVICE USING IT

Yoshiharu Fukunishi; Takanori Kitamura; Kengo Tabata; Toshiyuki Matsumura; Shuji Saiki; Yoshimichi Kajihara; Satoshi Koura


Journal of the Acoustical Society of America | 2001

Loud speaker, diaphragm and process for making the diaphragm

Hiroyuki Takewa; Mikio Iwasa; Mitsukazu Kuze; Shinya Tabata; Shinya Mizone; Yoshiyuki Takahashi; Satoshi Koura; Takashi Suzuki; Teruo Doi; Kiyoshi Ikeda; Hiroko Yamazaki


Archive | 2007

Speaker, speaker device using the same and electronic apparatus and vehicle using the speaker

Masahide Sumiyama; Satoshi Koura; Yoshimichi Kajihara; Koji Sano; Kazuki Honda; Satoshi Itoh; Shuji Saiki; Toshiyuki Matsumura; Shinya Mizone


Archive | 2003

Piezoelectric speaker, speaker system employing it, and electronic apparatus employing piezoelectric speaker

Satoshi Koura; Shoji Nakajima; Shinya Mizone; Jiro Terada


Archive | 2013

Speaker system, electronic apparatus using same, and mobile body device

Kenji Yamauchi; Masatoshi Okuyama; Shoji Nakajima; Satoshi Takayama; Satoshi Koura; Yachiyo Shimokawatoko; Kazuhiro Oshika; Hideaki Inoue


Archive | 2010

SPEAKER DEVICE AND TELEVISION RECEIVER USING THE SPEAKER DEVICE

Toshiyuki Koike; Satoshi Koura


Archive | 2001

Loudspeaker, diaphragm and making process for diaphragm

Hiroyuki Takewa; Mikio Iwasa; Mitsukazu Kuze; Shinya Tabata; Shinya Mizone; Yoshiyuki Takahashi; Satoshi Koura; Takashi Suzuki; Teruo Doi; Kiyoshi Ikeda; Hiroko Yamazaki


Journal of The Audio Engineering Society | 1995

A Directivity Controlled Loudspeaker System with Low Distortion

Shuji Saiki; Sawako Usuki; Ryo Yano; Satoshi Koura

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