Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D518032 | Speaker | — | 2006-03-28 |
| 6804369 | Electroacoustic transducer | Mitsuhiro Masuda | 2004-10-12 |
| 6704430 | Electroacoustic transducer | Yoshio Imahori, Hiroshi Fujinami, Yoshiharu Oishi | 2004-03-09 |
| 6373959 | Electroacoustic transducer | Mitsuhiro Masuda | 2002-04-16 |
| 6023519 | Electroacoustic transducer | Kazushige Tajima, Yoshio Imahori, Isao Fushimi | 2000-02-08 |
| RE36512 | Method of fabricating an electroacoustic transducer | — | 2000-01-18 |
| 6011856 | Electroacoustic transducer and electronic equipment using the same | Naoyuki Kigawa, Yoshio Imahori | 2000-01-04 |
| RE36327 | Electroacoustic transducer and method of fabricating the same | Fumihito Ishimura, Yoshio Imahori, Yasuharu Tsuchiya | 1999-10-05 |
| D409202 | Electroacoustic transducer | — | 1999-05-04 |
| D408311 | Audible signal for alarm units | Yoshio Imahori | 1999-04-20 |
| D407706 | Electroacoustic transducer | Kazushige Tajima, Yoshio Imahori | 1999-04-06 |
| D405451 | Electroacoustic transducer | — | 1999-02-09 |
| D405089 | Electroacoustic transducer | — | 1999-02-02 |
| D401881 | Electronic sounder | Yoshio Imahori | 1998-12-01 |
| D401525 | Electronic sounder | Yoshio Imahori, Katsuyuki Sano, Tomonari Suzuki | 1998-11-24 |
| D401589 | Electroacoustic transducer | Yoshio Imahori | 1998-11-24 |
| D401179 | Audible signal for alarm units | Yoshio Imahori, Katsuyuki Sano, Tomonari Suzuki | 1998-11-17 |
| 5831938 | Lead terminal connection structure of an electroacoustic transducer | Yoshio Imahori | 1998-11-03 |
| 5830300 | Method of ultrasonic welding for a resin case | Kazushi Suzuki, Hiroshi Fujinami | 1998-11-03 |
| D387768 | Electroacoustic transducer | — | 1997-12-16 |
| D379438 | Audible signal for an alarm unit | — | 1997-05-27 |
| 5625700 | Method of farbicating an electroacoustic transducer | — | 1997-04-29 |
| 5581623 | Electroacoustic transducer and method of fabricating the same | Fumihito Ishimura, Yoshio Imahori, Yasuharu Tsuchiya | 1996-12-03 |
| D375058 | Audible signal for alarm units | Naoyuki Kigawa | 1996-10-29 |
| D373966 | Audible signal for alarm units | Naoyuki Kigawa | 1996-09-24 |