Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9220142 | Light-emitting device | Takakazu Yano, Arata Shimozawa, Koichi Fukasawa | 2015-12-22 |
| 6876743 | One-piece speaker assembly | Isao Sone | 2005-04-05 |
| 6711274 | Compound speaker for a portable communication device | Masahito Furuya | 2004-03-23 |
| D487455 | Telephone receiver with a speaker | Masahito Furuya | 2004-03-09 |
| D487083 | Telephone receiver with a speaker | Masahito Furuya | 2004-02-24 |
| 6476710 | Electromagnetic sound generator | Shinichi Togawa, Yoshizumi Ohta | 2002-11-05 |
| 6433674 | Electromagnetic sound generator | Atsushi Kuwabara | 2002-08-13 |
| 6233346 | Surface-mounted electromagnetic sound generator | — | 2001-05-15 |
| D440174 | Electromagnetic sound generator | — | 2001-04-10 |
| D439185 | Electromagnetic sound generator | — | 2001-03-20 |
| D438136 | Audible signal for alarm | — | 2001-02-27 |
| 6023518 | Electromagnetic sound generator | Atsushi Kuwabara | 2000-02-08 |
| D419904 | Signal unit for an audible alarm | — | 2000-02-01 |