Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12177626 | Electroacoustic conversion device | Satoshi Itoh, Shinya Kagawa, Kiyohisa Hattori | 2024-12-24 |
| 11218812 | Speaker device | Shinya Kagawa | 2022-01-04 |
| 10645509 | Loudspeaker diaphragm, method of manufacturing same, and loudspeaker employing same | Tetsushi Itano, Tomonori Shibuya, Yoshiyuki Takahashi, Ryo Kuribayashi, Hiroyuki Amada | 2020-05-05 |
| 10506335 | Electroacoustic transducer | Shinya Kagawa | 2019-12-10 |
| 9961449 | Loudspeaker and mobile body device having loudspeaker mounted thereon | Kazuki Honda, Motoyoshi Kitagawa | 2018-05-01 |
| 9894443 | Loudspeaker and mobile device incorporating same | Kazuki Honda | 2018-02-13 |
| 9781515 | Loudspeaker diaphragm, and loudspeaker, electronic device and mobile device including the diaphragm | Tomonori Shibuya, Yoshiyuki Takahashi, Yoshimichi Kajihara, Tetsushi Itano, Takayuki Dan | 2017-10-03 |
| 9756426 | Loudspeaker | Hiroko Tsutsumi, Koichi Nakayama, Satoshi Koura, Kazuhiro Oshika, Tomonori Shibuya | 2017-09-05 |
| 9743209 | Loudspeaker and mobile device equipped with the same | Kazuki Honda | 2017-08-22 |
| 9693167 | Loudspeaker and mobile device incorporating same | Kazuki Honda | 2017-06-27 |
| 9462213 | Video display device | Kenji Yamauchi, Satoshi Koura, Yachiyo Shimokawatoko, Masatoshi Okuyama, Masahiro YUKAWA +5 more | 2016-10-04 |
| 9277304 | Magnetic circuit for loudspeaker, and loudspeaker using same | Satoshi Koura, Shinya Mizone, Goro Tsuchiya, Tetsushi Itano | 2016-03-01 |
| 9161109 | Loudspeaker, and electronic apparatus and mobile device using the loudspeaker | Shinya Kagawa, Goro Tsuchiya, Koji Sano, Akihiro Yogo, Kenichi Ajiki | 2015-10-13 |
| 8705790 | Speaker diaphragm, and speaker and handheld terminal device using said speaker diaphragm | — | 2014-04-22 |
| 8516681 | Loud speaker manufacturing method | Takehiko Tanabu, Satoshi Itoh, Masashi Kawabe, Mamiko Tsutsumi | 2013-08-27 |
| 8335336 | Vibration device and acoustic system | Shuji Saiki, Toshiyuki Matsumura | 2012-12-18 |
| 8073149 | Loudspeaker device | — | 2011-12-06 |
| 7974423 | Loudspeaker system | Toshiyuki Matsumura, Shuji Saiki, Sawako Kano | 2011-07-05 |
| 7840022 | Speaker device | Toshiyuki Matsumura, Shuji Saiki, Sawako Kano | 2010-11-23 |
| 7477755 | Speaker system | Shuji Saiki, Toshiyuki Matsumura, Sawako Kano | 2009-01-13 |
| 7463747 | Loudspeaker system | Shuji Saiki, Sawako Kano, Toshiyuki Matsumura | 2008-12-09 |
| 7054459 | Surrounding structure of a loudspeaker | Hiroyuki Takewa, Mikio Iwasa | 2006-05-30 |
| 6842529 | Speaker | Satoshi Koura, Takashi Suzuki, Hiroyuki Takewa, Mitsuhiro Hasegawa | 2005-01-11 |
| 6836551 | Loudspeaker | Shuji Saiki, Hiroyuki Takewa, Satoshi Koura | 2004-12-28 |
| 6757404 | Loud speaker, diaphragm and process for making the diaphragm | Hiroyuki Takewa, Mikio Iwasa, Shinya Tabata, Shinya Mizone, Yoshiyuki Takahashi +5 more | 2004-06-29 |