Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7551748 | Earphone | Shotaro Kamo, Eiji Matsuyama, Hajime Kitamura, Masayoshi Sugiyama | 2009-06-23 |
| 7447327 | Flexible PCB voice coil connector | Hajime Kitamura, Yoshio Imahori | 2008-11-04 |
| 6931142 | Insert earphone | — | 2005-08-16 |
| 6853735 | Receiver and portable communication device | Yoshio Imahori, Kiyoshi Urushibata | 2005-02-08 |
| D490399 | Earphone with microphone | Shotaro Kamo | 2004-05-25 |
| D468301 | Earphone | — | 2003-01-07 |
| 6141430 | Electroacoustic transducer | Yoshio Imahori | 2000-10-31 |
| 6111971 | Electroacoustic transducer | Yoshio Imahori | 2000-08-29 |
| 6049039 | Terminal and a method of forming the same | — | 2000-04-11 |
| 6023519 | Electroacoustic transducer | Kazushige Tajima, Yoshio Imahori, Takahiro Sone | 2000-02-08 |
| 5974157 | Small electroacoustic transducer | Kazushige Tajima, Yoshio Imahori | 1999-10-26 |
| 5953437 | Electroacoustic transducer | Yoshio Imahori, Naoyuki Kigawa, Kazushige Tajima, Kazushi Suzuki | 1999-09-14 |
| 5923769 | Electroacoustic transducer | — | 1999-07-13 |
| D401588 | Electroacoustic transducer | — | 1998-11-24 |
| D389421 | Audible signal for alarm units | Yoshio Imahori | 1998-01-20 |
| 5416751 | Electroacoustic transducer | Yoshio Imahori, Katsutoshi Nito | 1995-05-16 |
| 5394479 | Sounding apparatus with surface mounting terminals | Shoji Ishigaya | 1995-02-28 |
| 5376853 | Electroacoustic transducer | — | 1994-12-27 |