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Featured researches published by Shigeru Tomoeda.


Journal of the Acoustical Society of America | 2008

Loudspeaker, and module and electronic apparatus using the loudspeaker

Shigeru Tomoeda; Takanori Fukuyama; Masahide Sumiyama

A loudspeaker is provided that satisfies requirements for both a small size and a high sound pressure. In addition, the heat capacity of the magnetic circuit and the heat dissipation of the voice coil are improved in this loudspeaker. Using at least two pieces of bar magnets ( 21 ), an outer magnet type magnetic circuit is structured in which the magnetic gap comprising an upper plate ( 22 ) and a lower plate ( 23 ) has a straight section. Also, the configuration of the voice coil ( 28 ) is that of a track.


Archive | 2005

Electric acoustic converter and electronic device using the same

Kazuki Honda; Koji Sano; Kazutaka Kubo; Kazuya Yamasaki; Hiroshi Yano; Takeshi Shimokawatoko; Takanori Fukuyama; Shigeru Tomoeda; Mitsutaka Enomoto; Masahide Sumiyama


Archive | 2002

Mobile communication terminal and electro-acoustic transducer used for the same

Takeshi Shimokawatoko; Shigeru Tomoeda; Koji Sano; Tetsuya Mori; Kazutaka Kubo


Archive | 2005

Speaker, module using the same, electronic equipment and device, and speaker producing method

Takanori Fukuyama; Tomoyasu Takase; Koji Sano; Hiroshi Yano; Masanori Nakano; Shigeru Tomoeda; Kazuki Honda; Kazuya Yamasaki; Kazutaka Kubo; Takeshi Shimokawatoko; Mitsutaka Enomoto; Masahide Sumiyama


Archive | 2004

Speaker, and module and electronic device using such speaker

Shigeru Tomoeda; Takanori Fukuyama; Masahide Sumiyama


Archive | 2009

Method of manufacturing a speaker

Takanori Fukuyama; Tomoyasu Takase; Koji Sano; Hiroshi Yano; Masanori Nakano; Shigeru Tomoeda; Kazuki Honda; Kazuya Yamasaki; Kazutaka Kubo; Takeshi Shimokawatoko; Mitsutaka Enomoto; Masahide Sumiyama


Archive | 2005

Information terminal device with angled output units

Shigeru Tomoeda; Masahide Sumiyama; Masanori Nakano


Archive | 2005

Speaker, and module, electronic apparatus, and device that use the speaker

Tomoyasu Takase; Masanori Nakano; Masahide Sumiyama; Hiroshi Yano; Kazutaka Kubo; Koji Sano; Takanori Fukuyama; Shigeru Tomoeda; Kazuki Honda; Toshiyuki Koike; Masashi Kawabe; Takeshi Shimokawatoko


Archive | 2012

SOUND PLAYBACK DEVICE AND ELECTRONIC DEVICE USING SAME

Tomoyuki Matsunaga; Kazuki Honda; Kazuyuki Kosuda; Shigeru Tomoeda


Archive | 2005

スピーカと、これを用いたモジュール、電子機器および装置、ならびにスピーカの製造方法

Takanori Fukuyama; Tomoyasu Takase; Koji Sano; Hiroshi Yano; Masanori Nakano; Shigeru Tomoeda; Kazuki Honda; Kazuya Yamasaki; Kazutaka Kubo; Takeshi Shimokawatoko; Mitsutaka Enomoto; Masahide Sumiyama

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