Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9277304 | Magnetic circuit for loudspeaker, and loudspeaker using same | Mitsukazu Kuze, Satoshi Koura, Goro Tsuchiya, Tetsushi Itano | 2016-03-01 |
| 9008349 | Speaker diaphragm, speaker, and electronic equipment and mobile device using the speaker | Yohei Jin, Yoshimichi Kajihara | 2015-04-14 |
| 8553924 | Speaker, speaker device using the same and electronic apparatus and vehicle using the speaker | Masahide Sumiyama, Satoshi Koura, Yoshimichi Kajihara, Koji Sano, Kazuki Honda +3 more | 2013-10-08 |
| 8428283 | Manufacturing method of paper making part for loudspeaker, paper making part for loudspeaker, diaphragm for loudspeaker, sub cone for loudspeaker, dust cap for loudspeaker and loudspeaker | Kazuyoshi Mimura, Kenichi Ajiki, Masahide Sumiyama, Toru Fujii | 2013-04-23 |
| 8343313 | Plant for production of paper-made part for speaker, paper-made part for speaker produced thereby, and speaker utilizing the same | Kazuyoshi Mimura, Kenichi Ajiki, Masahide Sumiyama, Toru Fujii | 2013-01-01 |
| 8340342 | Diaphragm for speaker, speaker using the diaphragm, electronic device using the speaker, and speaker-mounted device | Yohei Jin, Yoshimichi Kajihara, Kazuaki Nishimura | 2012-12-25 |
| 8235168 | Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker | Yoshimichi Kajihara, Kazuyoshi Mimura, Takashi Sabato, Kazuaki Nishimura | 2012-08-07 |
| 8230966 | Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker | Yoshimichi Kajihara, Kazuyoshi Mimura, Takashi Sabato, Kazuaki Nishimura | 2012-07-31 |
| 8199964 | Speaker diaphragm, speaker dust cap, speaker sub-cone, speaker using these components, and electronic apparatus using the same | Kazuyoshi Mimura, Kenichi Ajiki, Masahide Sumiyama, Toru Fujii, Yoshiyuku Takahashi +3 more | 2012-06-12 |
| 8177021 | Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker | Yoshimichi Kajihara, Kazuyoshi Mimura, Takashi Sabato, Kazuaki Nishimura | 2012-05-15 |
| 8144912 | Manufacturing method of paper making part for loudspeaker, paper making part for loudspeaker, diaphragm for loudspeaker, sub cone for loudspeaker, dust cap for loudspeaker and loudspeaker | Kazuyoshi Mimura, Kenichi Ajiki, Masahide Sumiyama, Toru Fujii | 2012-03-27 |
| 8122996 | Diaphragm for speaker, frame for speaker, dust cap for speaker, speaker and apparatus using them, and method for manufacturing component for speaker | Yoshimichi Kajihara, Kazuyoshi Mimura, Takashi Sabato, Kazuaki Nishimura | 2012-02-28 |
| 8098869 | Loudspeaker damper, manufacturing method thereof, and loudspeaker and electronic device using the same | Masatoshi Okazaki, Kazuyoshi Mimura, Masahide Sumiyama | 2012-01-17 |
| 7582191 | Process for producing loudspeaker diaphragm, loudspeaker diaphragm produced by the process, and loudspeaker with the diaphragm | Takashi Suzuki | 2009-09-01 |
| 7123738 | Loudspeaker | Keiji Ishikawa, Shoouji Nakajima, Akira Kabumoto, Satoshi Ono | 2006-10-17 |
| 7118649 | Device and method for manufacturing speaker diaphragm, the diaphragm, and speaker | Yukinori Morohoshi, Nobuo Nakamura, Kazuto Nakamura | 2006-10-10 |
| 7050601 | Voice coil of speaker | Takashi Suzuki, Tsuneaki Rikiishi, Junsuke Hotani | 2006-05-23 |
| 6988584 | Speaker diaphragm edge and its manufacturing method | Yoshiyuki Takahashi, Shinya Tabata, Toshihiro Shimizu, Yukio Sone | 2006-01-24 |
| 6757404 | Loud speaker, diaphragm and process for making the diaphragm | Hiroyuki Takewa, Mikio Iwasa, Mitsukazu Kuze, Shinya Tabata, Yoshiyuki Takahashi +5 more | 2004-06-29 |
| 6680430 | Speaker edge, method of foam-molding the same, apparatus for foam-molding the same, speaker edge foam-molding system, and speaker employing the speaker edge | Shinya Tabata, Yoshiyuki Takahashi, Kiyoshi Ikeda, Hiroko Yamazaki, Shinji Okuda +1 more | 2004-01-20 |
| 5966797 | Method of manufacturing a damper for a loudspeaker | Masatoshi Okazaki, Toshihiro Shimizu, Toshihide Tomikawa, Toyohiro Tanaka | 1999-10-19 |
| 5903658 | Loudspeaker and a method for producing the same | Masatoshi Okazaki, Toshihiro Shimizu | 1999-05-11 |
| 5878150 | Damper for a loudspeaker and a method for producing the same | Masatoshi Okazaki, Toshihiro Shimizu, Toshihide Tomikawa, Toyohiro Tanaka | 1999-03-02 |
| 5875253 | Loudspeaker and a method for producing the same | Masatoshi Okazaki, Toshihiro Shimizu | 1999-02-23 |
| 5776597 | Speaker damper | Hirosuke Watanabe, Takeo Kimura, Masatoshi Okazaki | 1998-07-07 |